Multi-Service Mobile Platform for Well Servicing
A multi-service mobile platform is enabled for various different types of well servicing, including jointed pipe service, coiled tubing service, snubbing service, and wireline service. The multi-service mobile platform may be installed using loads to deliver modular components and assemblies, such as on a truck bed for example. The multi-service mobile platform is mobile and may be positioned in an installed and configured state from one wellhead to another wellhead. The multi-service mobile platform includes integrated hydraulic and electrical power sources and integrated lines for the power sources.
The present disclosure relates generally to well services for hydrocarbon production and, more particularly, to a multi-service mobile platform for well servicing.
Description of the Related ArtAfter a well for hydrocarbon production has been drilled and completed, various well servicing operations (or simply “well servicing” as used herein) may be performed. Well servicing may refer to the maintenance, repair, or reconfiguration of an existing well. Well servicing may be indicated by an issue of well integrity that arises in a well, by production activity detected in the well, or may be part of a production plan for the well. Well servicing may encompass any of a number of different kinds of interventions that may involve running jointed pipe or coiled tubing into the well under different conditions. For example, under pipe light conditions, a snubbing unit may be used during well servicing to run jointed pipe or coiled tubing using snubbing force. Well servicing may also include particular instrumentation operations that are performed using a wireline enabled for coupling to a downhole tool that may be enabled to perform various measurement or actuation operations upon insertion into the borehole of the well.
In some instances, a particular type of well servicing operation that is indicated for a particular well may be indicated as a result of a previous well servicing operation. For example, during wireline operations, certain well conditions may be detected and may indicate another type of intervention by a well servicing operation. Typically, different kinds of well servicing operations are provided by specialized service operators that respectively have the particular equipment and expertise available for one kind of well servicing operation. In some cases, drilling/milling or finishing out a well may also be performed with the corresponding equipment as a well service. When a different kind of well servicing operation is indicated, a different service provider may be engaged who will install the corresponding equipment again at the well site. The installation and removal of different equipment from a well site for performing individual well servicing operations may be costly, time-consuming, and hazardous, and therefore, undesirable.
Similarly, when performing well servicing on a plurality of wells at a well site, such as a multi-well fracking pad, a great deal of time and effort may be expended simply transferring equipment from one well to an adjacent well, which is also undesirable.
SUMMARYIn one aspect, a first method of installing a multi-service mobile platform for well servicing is disclosed. The first method may include installing, at a first location, a base platform structure having a top box and a bottom box, the base platform structure including four main lift cylinders that enable the top box to be lowered over the bottom box such that the top box and the bottom box mate together, and installing a first hydraulic pressure unit in proximity to the first location to provide hydraulic pressure to the main lift cylinders to enable the main lift cylinders to raise and lower the top box with respect to the bottom box. In the first method, the top box and the bottom box may each comprise respective first portions and second portions, while each of the first portion and the second portion may include two of the main lift cylinders. In the first method, the first portion may correspond to an operator's side and the second portion corresponding to an off operator's side of the multi-service mobile platform. The first method may further include delivering at least one work floor section to the first location and installing the work floor section on the top box. The first method may further include delivering to the first location in any sequential order of loads a plurality of loads. In the first method, the plurality of loads may include a first load comprising a first auxiliary platform for coupling to the rear work floor section, the first portion, and the second portion of the top box, including installing the first auxiliary platform. In the first method, the first auxiliary platform may include a backup hydraulic pressure unit, a draw works, and an electrical power unit. In the first method, the plurality of loads may further include a second load comprising a blowout-preventer (BOP) platform, including installing the BOP platform to a bottom edge at the first portion and the second portion of the top box, a third load comprising a panorama cabin and a second hydraulic pressure unit that couples to the first portion of the top box, including installing the panorama cabin. In the first method, the panorama cabin may include front windows, top windows, and end windows that provide a working view of the work floor and a derrick installed on the work floor. In the first method, the plurality of loads may include a fourth load comprising a second auxiliary platform for coupling to the second portion of the top box, including installing the second auxiliary platform, and a sixth load comprising the derrick, including hoisting of a derrick onto the work floor. In the first method, the derrick may include a rotary drive, an auto torque wrench for pipe, and a crane arm, while the derrick may be aligned with the wellhead when installed on the work floor.
In any of the disclosed embodiments, the first method may further include connecting the second hydraulic pressure unit to the main lift cylinders in place of the first hydraulic pressure unit to enable the main lift cylinders to raise and lower the top box with respect to the bottom box using the second hydraulic pressure unit.
In any of the disclosed embodiments of the first method, hoisting the derrick onto the work floor may further include hoisting the derrick onto the work floor using the draw works.
In any of the disclosed embodiments, the first method may further include delivering, in any sequential order with respect to other loads, a sixth load to the first location, the sixth load including a snubbing unit. In any of the disclosed embodiments, the first method may further include lifting the snubbing unit onto the second auxiliary platform.
In any of the disclosed embodiments, the first method may further include delivering, in any sequential order with respect to other loads, a seventh load to the first location, the seventh load including at least one pipe stand rack, and including installing the at least one pipe stand rack at a front portion of the multi-service mobile platform.
In any of the disclosed embodiments, the first method may further include delivering, in any sequential order with respect to other loads, an eighth load to the first location, the eighth load including a pipe handler, and including installing the pipe handler adjacent to the at least one pipe stand rack.
In any of the disclosed embodiments, the first method may further include delivering, in any sequential order with respect to other loads, a ninth load to the first location, the ninth load including a pipe bin, and including placing the pipe bin and the pipe handler adjacent to each other.
In any of the disclosed embodiments, the first method may further include delivering, in any sequential order with respect to other loads, a tenth load to the first location, the tenth load including a coiled tubing injector. In any of the disclosed embodiments, the first method may further include lifting the coiled tubing injector onto the second auxiliary platform.
In any of the disclosed embodiments, the first method may further include delivering, in any sequential order with respect to other loads, an eleventh load to the first location, the eleventh load including a wireline unit, including lifting the wireline unit onto the top box.
In any of the disclosed embodiments, the first method may further include lifting, using the crane arm, the snubbing unit over to the wellhead from the second auxiliary platform. In any of the disclosed embodiments of the first method, the snubbing unit may be placed on a trolley running on rails on the work floor, while the first method may further include, prior to lifting the snubbing unit from the second auxiliary platform, positioning the snubbing unit in proximity to the wellhead using the trolley.
In any of the disclosed embodiments, the first method may further include moving the pipe handler away from the multi-service mobile platform, while the pipe handler remains in a working position, and delivering, in any sequential order with respect to other loads, a twelfth load to the first location, the twelfth load including a coiled tubing handler including a reel of coiled tubing enabled to feed the coiled tubing injector, and further including installing the coiled tubing handler adjacent to the pipe handler.
In any of the disclosed embodiments, the first method may further include pinning the top box to a raised height with respect to the bottom box.
In any of the disclosed embodiments of the first method, installing the BOP platform to a bottom edge at the first portion and the second portion of the top box may further include using the main lift cylinders to position the top box to unload the BOP platform and fix the BOP platform to a bottom edge at the first portion and the second portion of the top box including sliding the BOP platform in place into the multi-service mobile platform.
In any of the disclosed embodiments of the first method, installing, at the first location, the base platform structure may further include positioning the bottom box on at least one supplemental box to elevate the multi-service mobile platform by a height of the supplemental box.
In any of the disclosed embodiments of the first method, at least one load may be delivered on a truck bed, while the main lift cylinders may be used to raise the top box to a height corresponding to the truckled.
In any of the disclosed embodiments, the first method may further include lifting, using the crane arm, the coiled tubing injector over to the wellhead from the second auxiliary platform. In any of the disclosed embodiments of the first method, the coiled tubing injector may be placed on a trolley running on rails on the work floor, while the first method may further include, prior to lifting the coiled tubing injector from the second auxiliary platform, positioning the coiled tubing injector in proximity to the wellhead using the trolley.
In another aspect, a control cabin for a multi-service mobile platform is disclosed. The control cabin may include a panorama window to enable horizontal and vertical viewing of the multi-service mobile platform in operation when the control cabin is installed on the multi-service mobile platform, at least one hydraulic cylinder enabled to raise or lower the control cabin, a first control system for controlling a rotary drive and a draw works associated with the multi-service mobile platform, a second control system for controlling a snubbing unit associated with the multi-service mobile platform, a third control system for controlling a coiled tubing handler associated with the multi-service mobile platform, and a fourth control system for controlling a wireline unit associated with the multi-service mobile platform. In the control cabin, the first control system, the second control system, the third control system, and the fourth control system may be powered using an electrical power unit included with the multi-service mobile platform.
In any of the disclosed embodiments, the control cabin may further include a first workstation enabled to receive user input and communicate with the first control system and the second control system, and a second workstation enabled to receive user input and communicate with the third control system and the fourth control system. In the control cabin, the first workstation and the second workstation may be powered using the electrical power unit.
In any of the disclosed embodiments of the control cabin, when the control cabin is installed on the multi-service mobile platform, a user of the first workstation or the second workstation may be provided a view from the rotary drive to a blowout-preventer (BOP) included with the multi-service mobile platform by the panorama window.
In any of the disclosed embodiments, the control cabin may further include a heating, ventilation, and air conditioning (HVAC) system to maintain a desired working climate within the control cabin. In the control cabin, the HVAC system may be powered using the electrical power unit.
In any of the disclosed embodiments, the control cabin may further include network equipment to facilitate networking among the first workstation, the second workstation, the first control system, the second control system, the third control system, and the fourth control system, while the network equipment may be powered using the electrical power unit.
In yet another aspect, a multi-service mobile platform for well servicing is disclosed. The multi-service mobile platform may include a base platform structure having a lower level and an upper level that mate together when the upper level is lowered over the lower level, a platform base formed by an upper surface of the upper level, the platform base for accessing a wellhead for well servicing operations, four hydraulic lift cylinders for vertically raising and lowering the upper level of the base platform structure, a derrick with a rotary drive installed at the upper level, the derrick enabled to support jointed-pipe installation at the wellhead, a coiled tubing injector mounted on the derrick and enabled to support coiled tubing installation at the wellhead, and a hydraulic pressure generator enabled to supply hydraulic pressure to at least the four hydraulic lift cylinders, the derrick, and the coiled tubing injector.
In any of the disclosed embodiments of the multi-service mobile platform, at least one of the hydraulic lift cylinders may further include mechanical feet enabled to walk the multi-service mobile platform when the multi-service mobile platform is assembled.
In any of the disclosed embodiments, the multi-service mobile platform may further include a snubbing unit enabled for installation on the wellhead, and a wireline unit enabled to support wireline operations at the wellhead, while the hydraulic pressure generator may be enabled to supply hydraulic pressure to the snubbing unit.
In any of the disclosed embodiments, the multi-service mobile platform may further include a control cabin enabled for coupling to the upper level, the control cabin enabling monitoring and control of the hydraulic lift cylinders, the derrick, the rotary drive, the coiled tubing injector, the snubbing unit, and the wireline unit.
In any of the disclosed embodiments of the multi-service mobile platform, the control cabin may further include a panorama window that enables direct view of the derrick, the platform base, and the well head.
In any of the disclosed embodiments, the multi-service mobile platform may further include an electrical power generator enabled to supply electrical power to at least the derrick, the coiled tubing injector, the snubbing unit, the wireline unit, and the control cabin.
In any of the disclosed embodiments, the multi-service mobile platform may further include a hydraulic pressure manifold accessible from the lower level, the hydraulic pressure manifold enabling access from the lower level to a plurality of hydraulic fittings providing fluid communication for hydraulic pressure.
In any of the disclosed embodiments of the multi-service mobile platform, the platform base may further include a plurality of steel leaves covering the platform base. In the multi-service mobile platform, at least one of the steel leaves may be removably attached to the platform base to enable access to the lower level from the platform base.
In any of the disclosed embodiments of the multi-service mobile platform, the upper level may further include an internal staircase from the platform base to the lower level, and a wellhead platform enabled for coupling to the upper level and accessible from the internal staircase, while the wellhead platform may enable a worker to access the wellhead.
In any of the disclosed embodiments of the multi-service mobile platform, the hydraulic pressure generator may further include a plurality of hydraulic pumps. In the multi-service mobile platform, each of the hydraulic pumps may be individually activated depending on a hydraulic load provided by the hydraulic pressure generator.
In any of the disclosed embodiments of the multi-service mobile platform, all of the plurality of hydraulic pumps may be activated at a maximum hydraulic load provided by the hydraulic pressure generator.
In any of the disclosed embodiments of the multi-service mobile platform, the coiled tubing injector and the snubbing unit may be integrated as a single unit.
In any of the disclosed embodiments of the multi-service mobile platform, the derrick may be a telescopic derrick that is attached to the platform base.
In any of the disclosed embodiments of the multi-service mobile platform, the telescopic derrick may support strings of single pipe operations, double pipe operations, and triple pipe operations.
In any of the disclosed embodiments, the multi-service mobile platform may further include a rotary table installed at the platform base.
In any of the disclosed embodiments, the multi-service mobile platform may further include a pair of power tongs, and an auto-torque pipe wrench, while the pair of power tongs and the auto-torque pipe wrench may be enabled for use with the rotary table.
In any of the disclosed embodiments of the multi-service mobile platform, the derrick may further include a tie-off point for the coiled tubing injector when the coiled tubing injector is in use. In any of the disclosed embodiments of the multi-service mobile platform, the tie-off point may be adjustable at different heights with respect to the derrick.
In any of the disclosed embodiments, the multi-service mobile platform may further include a driver for the wireline unit attached to the derrick.
In any of the disclosed embodiments, the multi-service mobile platform may further include an auxiliary platform enabled for coupling to the upper level at an opposing side of the upper level from the control cabin. In the multi-service mobile platform, the auxiliary platform may be enabled for stowing the coiled tubing injector when the coiled tubing injector is not in use.
In any of the disclosed embodiments of the multi-service mobile platform, the auxiliary platform may further include a choke manifold enabled to change direction of fluid flow in fluid communication with the wellhead, and an accumulator enabled to activate a blowout preventer installed on the wellhead.
In any of the disclosed embodiments of the multi-service mobile platform, the control cabin may further include at least two hydraulic rams enabled to raise or lower the control cabin relative to the upper level.
In any of the disclosed embodiments, the multi-service mobile platform may further include a plurality of outriggers enabled to structurally support the base platform structure, while the outriggers may increase the weight capacity of the multi-service mobile platform when deployed on the ground. In any of the disclosed embodiments of the multi-service mobile platform, the outriggers may be enabled for lifting off the ground when the mechanical feet walk the multi-service mobile platform.
In any of the disclosed embodiments, the multi-service mobile platform may further include a draw works attached to the upper level, the draw works operating in conjunction with the rotary drive and enabled to raise and lower the telescoping derrick. In any of the disclosed embodiments of the multi-service mobile platform, the draw works may be powered by the hydraulic pressure generator. In any of the disclosed embodiments of the multi-service mobile platform, the draw works may be powered by the electrical power generator.
In any of the disclosed embodiments of the multi-service mobile platform, the base platform structure may further include at least one supplemental box to elevate the multi-service mobile platform by a height of the supplemental box.
In still a further aspect, a second method of transferring a multi-service mobile platform for well servicing between wells is disclosed. The second method may include installing a multi-service mobile platform at a first wellhead. In the second method, the multi-service mobile may include a base platform structure having a lower level and an upper level and four main lift cylinders for raising and lowering the upper level with respect to the lower level, a derrick including a rotary drive installed at a work floor supported by the upper level, a draw works, a blow-out preventer (BOP) enabled for coupling to the first wellhead, an electrical power unit, a hydraulic power unit including a plurality of hydraulic lines, a pipe stand rack a coiled tubing injector, and a pumping manifold. In the second method, the installing may further include pinning the upper level with respect to the lower level, lowering an outrigger to the ground to stabilize the multi-service mobile platform, and connecting the first wellhead in fluid communication with BOP and the pumping manifold. The second method may further include, responsive to a decision to move the multi-service mobile platform from the first wellhead to a second wellhead in vicinity of the first wellhead, preparing the multi-service mobile platform for walking, further including lifting up the outrigger off the ground, disconnecting the first wellhead from fluid communication with the pumping manifold, closing a master valve for the first wellhead, disconnecting the BOP and the pumping manifold from fluid communication with the first wellhead and rest the BOP on a BOP platform at the lower level, and walking the multi-service mobile platform to the second wellhead using the main lift cylinders with the upper level pinned to the lower level, including controlling actuation of base plates and sliding plates respectively attached to each of the main lift cylinders.
In any of the disclosed embodiments of the second method, the multi-service mobile platform may further include a snubbing unit, and a wireline unit.
In any of the disclosed embodiments, the second method may further include controlling actuation of the base plates and the sliding plates to align the multi-service mobile platform with the second wellhead. When the multi-service mobile platform is aligned with the second wellhead, the second method may further include connecting the second wellhead in fluid communication with BOP and the pumping manifold, lowering the outrigger to the ground to stabilize the multi-service mobile platform, and powering on the electrical power unit and the hydraulic power unit to place the multi-service mobile platform in an operational state.
In any of the disclosed embodiments of the second method, the hydraulic power unit and the plurality of hydraulic lines may remain connected during the walking.
In any of the disclosed embodiments of the second method, the coiled tubing injector may remain connected to a coiled tubing reel via coiled tubing during the walking, while the coiled tubing reel may be enabled to move independently on the ground with respect to the multi-service mobile platform.
In any of the disclosed embodiments, the second method may further include moving a pipe handler along with the multi-service mobile platform, while the pipe handler may be enabled to move independently on the ground with respect to the multi-service mobile platform.
In yet a further aspect, a third method of operating a multi-service mobile platform for well servicing is disclosed. The third method may include installing a multi-service mobile platform at a first wellhead. In the third method, the multi-service mobile platform may include a base platform structure having a lower level and an upper level and four main lift cylinders for raising and lowering the upper level with respect to the lower level, a derrick including a rotary drive installed at a work floor supported by the upper level, a draw works, a blow-out preventer (BOP) enabled for coupling to the first wellhead, an electrical power unit, a hydraulic power unit including a plurality of hydraulic lines, a pipe stand rack, a coiled tubing injector, a snubbing unit, a pumping manifold, and a wireline unit. The third method may further include running jointed pipe into the wellhead using the derrick and the draw works, and, after running jointed pipe is completed, running coiled tubing into the wellhead using the coiled tubing injector and a coiled tubing reel located adjacent to the multi-service mobile platform.
In any of the disclosed embodiments, the third method may further include, before the running jointed pipe is completed, using the snubbing unit for running the jointed pipe into the wellhead.
In any of the disclosed embodiments, the third method may further include, after the running coiled tubing is completed, loading the pipe stand rack with pipe using a pipe handler located adjacent to the multi-service mobile platform, and re-running jointed pipe into the wellhead using the derrick and the draw works.
In any of the disclosed embodiments, the third method may further include, prior to the running jointed pipe or subsequent to the re-running jointed pipe, running wireline using the wireline unit into the wellhead.
In any of the disclosed embodiments, the third method may further include, after the running coiled tubing is completed, running wireline using the wireline unit into the wellhead.
In any of the disclosed embodiments, the third method may further include, omitting the running jointed pipe.
In any of the disclosed embodiments, the third method may further include, prior to the running coiled tubing or subsequent to the running coiled tubing, running wireline using the wireline unit into the wellhead.
For a more complete understanding of the present disclosure and its features and advantages, reference is now made to the following description, taken in conjunction with the accompanying drawings, in which:
In the following description, details are set forth by way of example to facilitate discussion of the disclosed subject matter. It should be apparent to a person of ordinary skill in the field, however, that the disclosed embodiments are exemplary and not exhaustive of all possible embodiments.
Throughout this disclosure, a hyphenated form of a reference numeral refers to a specific instance of an element and the un-hyphenated form of the reference numeral refers to the element generically or collectively. Thus, as an example (not shown in the drawings), device “12-1” refers to an instance of a device class, which may be referred to collectively as devices “12” and any one of which may be referred to generically as a device “12”. In the figures and the description, like numerals are intended to represent like elements.
As noted previously, different well servicing operations typically involve the installation and use of specialized equipment that is particular to a single type of well servicing operation. In many cases, specialized service providers offer a particular type of well servicing operation and gain exclusive access to wells when performing their particular service operation, in order to install the specialized equipment.
In one example, the use of jointed pipe for well servicing may involve the installation of a derrick with a rotary drive at the well site, in addition to pipe storage racks and pipe handling equipment. Thus, the deployment of jointed pipe well servicing may accordingly involve the delivery and installation of certain heavy equipment, along with the supporting components for providing electrical power, hydraulic pressure, fluid handling, and support for various bottom hole assemblies (BHAs). Before a single jointed pipe can be introduced into the well with this conventional approach, the well site may be cleared for installation of the jointed pipe heavy equipment, which may involve using a crane to lift equipment into place. Thus, the conventional approach with conventional specialized equipment may involve a large overhead effort to deploy the specialized equipment once a decision has been made to use jointed pipe for well servicing. Such large overhead effort may consume significant resources and, moreover, may result in extended periods of inaccessibility of a particular well site to accommodate the heavy equipment installation effort. This large overhead effort also poses a safety hazard to the personnel performing the installation as well as those in the well pad area.
Continuing with the above example, when a subsequent decision is made to use coiled tubing for well servicing during jointed pipe servicing, in many conventional operations such a change would involve first securing the well with the installed jointed pipe, making the well accessible to equipment to run coiled tubing, and then installing the coiled tubing equipment, before the coiled tubing can be introduced into the well for well servicing. Using typical commercial solutions and services, making the well accessible for coiled tubing may involve removing some or all of the heavy equipment that was previously installed to run jointed pipe in the well. Again, this approach may be inefficient in terms of deployed resources and long installation and uninstallation times during well servicing, which may be economically undesirable and, again, pose a safety hazard to involved personnel.
Similarly, during a jointed pipe run (or while running coiled tubing) during well servicing, it may be observed that the use of a snubbing unit is indicated, such as when pipe light conditions occur. However, when the snubbing equipment and services are obtained from a specialized provider, the snubbing unit may have to be ordered, delivered, and installed, before snubbing can proceed with the jointed pipe (or coiled tubing). Furthermore, such a separate snubbing unit may be delivered with corresponding support equipment (e.g., a hydraulic pressure unit) that may be redundant and may result in duplicate equipment being installed and operated at the well site, which again would be inefficient and resource intensive, and may be economically disadvantageous for this reason. The use of redundant equipment may also include various additional hydraulic pressure lines, power lines, and other connections that may congest work areas, passageways, etc., and may represent additional safety hazards for personnel. In addition, the redundant equipment and associated redundant installation and operational procedures may result in additional personnel who are exposed to the safety hazards.
As will be disclosed in further detail herein, a multi-service mobile platform for well servicing may provide various integrated services and equipment, including jointed pipe, coiled tubing, snubbing, and wireline services. The multi-service mobile platform for well servicing disclosed herein may be enabled for installation at a well site with limited use of a crane and may be predominately delivered and installed using standard truck bed loads on a plurality of trucks that deliver individual components of the multi-service mobile platform. The multi-service mobile platform for well servicing disclosed herein may be modularly constructed with the standard truck-load sized components that can be assembled using a core base platform structure. The multi-service mobile platform for well servicing disclosed herein may include a panorama cabin that provides a centralized control facility for various well servicing operations and that enables users working in the panorama cabin to have an unobscured panorama view of the platform base, the well bore, and the derrick/rotary drive simultaneously. The multi-service mobile platform for well servicing disclosed herein may comprise a box-in-box modular structure having four hydraulic lift cylinders that can raise or lower the platform base as desired. The multi-service mobile platform for well servicing disclosed herein may also comprise mechanical feet on which each of the four hydraulic lift cylinders rests and that enable the multi-service mobile platform to be moved by walking using the mechanical feet. The multi-service mobile platform for well servicing disclosed herein may also be enabled to walk using the mechanical feet in an installed and assembled condition, thereby enabling access to neighboring wells at a pad site having multiple wellbores with relatively little effort and delay, and without disassembly.
Additionally, the multi-service mobile platform for well servicing disclosed herein may provide a centralized source for electrical power that is enabled to supply electrical power to various equipment for jointed pipe, coiled tubing, snubbing, and wireline services. The multi-service mobile platform for well servicing disclosed herein may provide a centralized source for hydraulic pressure that is enabled to supply hydraulic pressure to various equipment for jointed pipe, coiled tubing, snubbing, and wireline services. The multi-service mobile platform for well servicing disclosed herein may further integrate electrical power and hydraulic lines and connections into the multi-service mobile platform to more efficiently use space and reduce obstructed space as compared to various electrical power and hydraulic lines being connected between various pieces of equipment that are individually installed and operated. The multi-service mobile platform for well servicing disclosed herein may integrate various operational and safety features to improve working conditions for personnel working on the multi-service mobile platform. These features, among various additional features, are described in further detail herein for the disclosed multi-service mobile platform for well servicing.
Referring now to
As will be described in further detail herein, multi-service mobile platform 100 is presented as a single, modular, integrated, multi-function, and self-contained well intervention rig that may perform well intervention at any stage of well life. As shown and described herein, multi-service mobile platform 100 may be constructed using base platform structure 120 as a base element. Base platform structure 120 may comprise a rig base platform having a lower box structure and an upper box structure (see e.g.,
In addition to raising and lowering the upper box structure when base platform structure 120 is stationery, the main hydraulic cylinders may be equipped with so-called ‘walking feet’ (see also
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- a. the upper box structures are raised to the mechanical limit and are rigidly fixed relative to the lower box structures to prevent lowering (e.g., pinned in place);
- b. multi-service mobile platform 100 rests on the ground, walking feet are on the ground in the aligned position (operational state);
- c. the main hydraulic cylinders are lifted slightly to raise the base plates off the ground, while the lower box structures remain on the ground;
- d. the sliding plates are actuated to the offset position, which moves the base plate when in the air, such that the choice of the offset position determines the direction and step length of the next step distance;
- e. main hydraulic cylinders are lowered to place the base plates with the sliding plates in the offset position on the ground and extended further in height to raise multi-service mobile platform 100 off the ground, resting only on the base plates;
- f. on the ground, the sliding plates are actuated to displace multi-service mobile platform 100 by the next step distance towards the base plates, bringing the sliding plates in the aligned position; and
- g. retracting the main hydraulic cylinders until multi-service mobile platform 100 again rests on the ground.
Accordingly, the operations b. through g. above may be repeated to move multi-service mobile platform 100 without having to disassemble operational components, including moving base platform structure 120 with the lower box structure and the upper box structure and any attached elements in place. It is noted that certain components may be stowed or removed prior to operation a in preparation for walking. Additionally, certain components, such as CT reel trailer 1012 (see
The walking movement of multi-service mobile platform 100 may accordingly enable access to multiple wellheads that may be in proximity to one another, such as is commonly arranged at the surface of a well pad. The ability to move multi-service mobile platform 100 from one wellhead to any adjacent wellhead in an assembled and operational state is a desirable feature that provides economic and safety benefits by reducing the time, effort, and personnel for repositioning multi-service mobile platform 100 to access a different wellhead. Additional safety benefits may accrue as a result of eliminating various other operations, equipment, and congested work areas, as described previously. It is noted that without the ability to position multi-service mobile platform 100 with the walking movement, the time and effort to reposition would be much greater because conventional rigs are not mobile and such movement would involve disassembling and reassembling structural elements at each successive wellhead, even when adjacent wellheads are relatively close together. In some implementations, base platform structure 120, including the main hydraulic cylinders and the walking feet, may be a box-in-box structure, such as supplied by NOV, Inc., and may be modified and adapted to construct multi-service mobile platform 100, as described herein. In other implementations, base platform structure 120 may be realized using a box-on-box structure (see also
With derrick/rotary drive 122 and CT handler 126, which are aligned with the well center, multi-service mobile platform 100 is enabled to supply both jointed pipe and coiled tubing for various well servicing operations. During use, the coiled tubing injector associated with CT handler 126 may be mounted to the derrick (shown schematically in aggregate as derrick/rotary drive 122 in
With the inclusion of snubbing unit 128 along with the other elements described herein, multi-service mobile platform 100 may provide various well servicing functionality in a single rig, including coiled tubing, jointed pipe, snubbing, and wireline services. Multi-service mobile platform 100 is configured for rapid delivery and installation, using standard truck loads to deliver and install various components onto base platform structure 120. In typical implementations, multi-service mobile platform 100 may be installed for use at a well head within about approximately twelve (12) hours, which is very fast compared to conventional well servicing equipment and is, therefore, economically desirable. As will be described in further detail herein, multi-service mobile platform 100 may be enabled to move as a self-propelled, walking structure between wellheads in an assembled and operational state.
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In base platform structure 200-1, top boxes 226 and bottom boxes 228 are depicted in a fixed, installed position corresponding to an operational state of multi-service mobile platform 100. For example, top boxes 226 may be pinned to bottom boxes 228 to prevent raising and lowering, and to relieve main lift cylinders 230 from carrying the weight of multi-service mobile platform 100. Additionally, various elements have been installed within top boxes 226, for example, that may prevent lowering or raising and may be removed to enable lowering or raising, such as stairs 218-1 and 218-2, BOP access platforms 220, and internal platforms 221.
Visible at the top surface of each of right portion 210 and left portion 212 are two derrick mounts 240, which are used to support a derrick 610 (not shown in
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In
Referring now to
As shown in work floor view 300, an opening 332 is aligned with the wellhead below and forms the center of the work floor. Around opening 332 in the work floor, a rotary panel 330 is in place where a rotary table may be installed. The work floor between right portion 210 and left portion 212 has been filled with four (6) work floor panels, including two (2) rear work floor panels 324, two (2) central work floor panels 326, and two (2) front work floor panels 325, which may be steel leaves that are hingeably attached to the work floor. The work floor panels 324 and 326 may be individually installed for flexible allocation of the work floor, as desired. The work floor panels 324 and 326 may be enabled for lifting up to access or view the space below, as desired.
In
As depicted, panorama cabin 310 may be similar to a building container used to house workstations for personnel in a conventional drilling rig, but is equipped with panorama windows 312 that extend from the roof to the operator's side floor facing the work floor. Additionally, the panorama windows may wrap around an end portion 310-1 of panorama cabin 310 in order to extend visibility at the wellhead and to other ground equipment, such as jointed pipe handler 114 and CT handler 126 (see also
Additionally, panorama cabin 310 may provide integrated control systems in a common location to operate various equipment included with multi-service mobile platform 100, which may be substantially different from conventional drilling environments, where each type of well servicing equipment may be associated with an individual dedicated control system that is also individually installed and removed with the corresponding well servicing equipment. Specifically, panorama cabin 310 may be a central hub for various electrical wiring for signals and power supplies to different distributed equipment in multi-service mobile platform 100. As a central hub, panorama cabin 310 may itself house various control systems (e.g., programmable logic controllers or computer systems) in a common location from where different elements included in multi-service mobile platform 100 are centrally controlled. Accordingly, panorama cabin 310 may include at least one workspace for a control operator, such as a workstation that has a user interface to one or more of the control systems to enable monitoring, supervision, response, communication, actuation, programming, scheduling of various control tasks, among others, associated with drilling equipment. The control systems housed in panorama cabin 310 may include control systems for: derrick/rotary drive 122, draw works 320, snubbing unit 128, CT handler 126, wireline unit 112, hydraulic pressure unit 118, electrical power unit 116, jointed pipe handler 114, among others. In particular embodiments, panorama cabin 310 may include a first workstation to control derrick/rotary drive 122, draw works 320, and snubbing unit 128, as well as a second workstation to control CT handler 126 and wireline unit 112. Additionally, panorama cabin 310 may have a heating, ventilation, and air conditioning (HVAC) system in order to regulate temperature in indoor spaces where operators are located (i.e., at the workstations) as well as to cool the common electrical equipment housed within panorama cabin 310, which may include network equipment to facilitate networking and communication among the various workstations and control systems. It is noted that a particular aspect of multi-service mobile platform 100 is the inclusion of electrical power unit 116, which may be used to power equipment (e.g., the workstations, control equipment, network equipment, etc.) in panorama cabin 310 as well as other drilling equipment. For example, electrical power unit 116 may serve as a primary power source for at least derrick/rotary drive 122, CT handler 126, snubbing unit 128, wireline unit 112, and panorama cabin 310. In this manner, electrical connections, such as for power and electrical signals, may be reduced, as compared with an external electrical power source, and the electrical connections may be housed in channels that are integrated into structural members of multi-service mobile platform 100, such as base platform structure 120.
At the off operator's side in
As shown in work floor view 300, at the front of work floor panel 326 on the off-operator's side, floor rails 345 have been installed that lead from left auxiliary platform 125 and over left portion 212 towards opening 332. Floor rails 345 are enabled to receive a trolley 343 that is shown supporting CT injector 342 and snubbing unit 128 stowed at left auxiliary platform 125. In this manner, CT injector 342 may be moved into position for use near opening 332 to access the wellhead with CT, and may be easily moved to the side by hand for rapid stowing away from opening 332, to keep opening 332 clear for other servicing operations without undue effort or delay. Although CT injector 342 and snubbing unit 128 are shown as separate equipment, it will be understood that in some embodiments, the mechanical functionality of CT injector 342 and snubbing unit 128 may be combined into a single apparatus that can alternate between pipe service and CT service without removal from an operational location or during use.
Also shown in work floor view 300 attached to left portion 212, at a lower outer edge of top box 226-2 (not visible in
Still further shown in
At a front of the work floor in work floor view 300, pipe stand racks 328 are installed on each side, with a pipe stand rack 115-1 on the operator's side, and a pipe stand rack 115-2 on the off-operator's side, shown on work floor panels 325 and 326, for example. As shown, pipe stand racks 115 are enabled to hold approximately 30 foot pipe sections. It is noted that jointed pipe handler 114 in conjunction with derrick 610 may be enabled to handle single, double, or triple pipe sections in a single pipe feed operation to improve efficiency of pipe service by multi-service mobile platform 100.
Referring now to
In work floor view 400, a slightly different arrangement at left auxiliary platform 125 is shown as compared to work floor view 300 in
Referring now to
Referring now to
Also visible in work floor view 600 is derrick 610 mounted on derrick mounts 240 and an auto-torque torque wrench 618. In particular implementations, derrick 610 may be a telescopic derrick having adjustable height that is pinned to derrick mounts 240 on the work floor of multi-service mobile platform 100, as shown. The height adjustment may be performed using draw works 342 (not visible in
Referring now to
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As shown in
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Referring now to
As shown in view 1000, multi-service mobile platform 100 is used in a similar manner as shown with respect to
Referring now to
In top view 1100, multi-service mobile platform 100 is shown in a mobile state (see also
In the walking state of multi-service mobile platform 100 shown in
Referring now to
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In
In
In
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In front view 1400, multi-service mobile platform 100 is shown in a mobile state (see also
Referring now to
Referring now to
Method 1600-1 in
After step 1622, method 1600-1 may proceed to method 1600-2 in
After step 1634, method 1600-2 may proceed to method 1600-3 in
Referring now to
Method 1700 may begin at step 1710 by installing a multi-service mobile platform at a first wellhead including connecting the first wellhead in fluid communication with the BOP and the pumping manifold. For example, in step 1710, BOP 222 (including associated elements in a BOP stack) may be coupled in fluid communication with the first wellhead (such as to a master valve for the first wellhead), and fluid lines from BOP 222 may, in turn, be connected to choke manifold 344. At step 1712 a decision is made whether to move to a second wellhead. When the result of step 1712 is NO, and no decision is made to begin with a second wellhead, method 1700 loops back to step 1712. When the result of step 1712 is YES, and a decision is made to begin with a second wellhead, at step 1714, the multi-service mobile platform is prepared for walking, including lifting up the outrigger off the ground, disconnecting the first wellhead from fluid communication with the pumping manifold, closing a master valve for the first wellhead, disconnecting the BOP and the pumping manifold from fluid communication with the first wellhead, and resting the BOP on a BOP platform at the lower level. At step 1716, the multi-service mobile platform is walked to the second wellhead using the main lift cylinders with the upper level pinned to the lower level, including controlling actuation of base plates and sliding plates respectively attached to each of the main lift cylinders. In step 1716, the multi-service mobile platform may be enabled to walk relatively straight in any direction, or along a given proscribed path that may be arbitrary and may include turns, curves, and rotations. At step 1718, actuation of the base plates and the sliding plates is controlled to align the multi-service mobile platform with the second wellhead. At step 1720, a decision is made whether the multi-service mobile platform is aligned with the second wellhead. When the result of step 1720 is NO, and the multi-service mobile platform is not aligned with the second wellhead, method 1700 loops back to step 1718. When the result of step 1720 is YES, and the multi-service mobile platform is aligned with the second wellhead, at step 1722, the second wellhead is connected in fluid communication with BOP and the pumping manifold, lower the outrigger to the ground to stabilize the multi-service mobile platform, and power on the electrical power unit and the hydraulic power unit to place the multi-service mobile platform in an operational state.
As disclosed herein, a multi-service mobile platform is enabled for various different types of well servicing, including jointed pipe service, coiled tubing service, snubbing service, and wireline service. The multi-service mobile platform may be installed using loads to deliver modular components and assemblies, such as on a truck bed for example. The multi-service mobile platform is mobile and may be positioned in an installed and configured state from one wellhead to another wellhead. The multi-service mobile platform includes integrated hydraulic and electrical power sources and integrated lines for the power sources.
The above disclosed subject matter is to be considered illustrative, and not restrictive, and the appended claims are intended to cover all such modifications, enhancements, and other embodiments which fall within the true spirit and scope of the present disclosure. Thus, to the maximum extent allowed by law, the scope of the present disclosure is to be determined by the broadest permissible interpretation of the following claims and their equivalents, and shall not be restricted or limited by the foregoing detailed description.
Claims
1. A control cabin for a multi-service mobile platform, the control cabin comprising:
- a panorama window to enable horizontal and vertical viewing of the multi-service mobile platform in operation when the control cabin is installed on the multi-service mobile platform;
- at least one hydraulic cylinder enabled to raise or lower the control cabin;
- a first control system for controlling a rotary drive and a draw works associated with the multi-service mobile platform;
- a second control system for controlling a snubbing unit associated with the multi-service mobile platform;
- a third control system for controlling a coiled tubing handler associated with the multi-service mobile platform; and
- a fourth control system for controlling a wireline unit associated with the multi-service mobile platform,
- wherein the first control system, the second control system, the third control system, and the fourth control system are powered using an electrical power unit included with the multi-service mobile platform.
2. The control cabin of claim 1, further comprising:
- a first workstation enabled to receive user input and communicate with the first control system and the second control system; and
- a second workstation enabled to receive user input and communicate with the third control system and the fourth control system,
- wherein the first workstation and the second workstation are powered using the electrical power unit.
3. The control cabin of claim 2, wherein, when the control cabin is installed on the multi-service mobile platform:
- a user of the first workstation or the second workstation is provided a view from the rotary drive to a blowout-preventer (BOP) included with the multi-service mobile platform by the panorama window.
4. The control cabin of claim 1, further comprising:
- a heating, ventilation, and air conditioning (HVAC) system to maintain a desired working climate within the control cabin,
- wherein the HVAC system is powered using the electrical power unit.
5. The control cabin of claim 2, further comprising:
- network equipment to facilitate networking among the first workstation, the second workstation, the first control system, the second control system, the third control system, and the fourth control system,
- wherein the network equipment is powered using the electrical power unit.
6. A multi-service mobile platform for well servicing comprising:
- a base platform structure having a lower level and an upper level that mate together when the upper level is lowered over the lower level;
- a platform base formed by an upper surface of the upper level, the platform base for accessing a wellhead for well servicing operations;
- four hydraulic lift cylinders for vertically raising and lowering the upper level of the base platform structure;
- a derrick with a rotary drive installed at the upper level, the derrick enabled to support jointed-pipe installation at the wellhead;
- a coiled tubing injector mounted on the derrick and enabled to support coiled tubing installation at the wellhead; and
- a hydraulic pressure generator enabled to supply hydraulic pressure to at least the four hydraulic lift cylinders, the derrick, and the coiled tubing injector.
7. The multi-service mobile platform of claim 6, wherein at least one of the hydraulic lift cylinders further comprises:
- mechanical feet enabled to walk the multi-service mobile platform when the multi-service mobile platform is assembled.
8. The multi-service mobile platform of claim 6, further comprising:
- a snubbing unit enabled for installation on the wellhead; and
- a wireline unit enabled to support wireline operations at the wellhead, wherein the hydraulic pressure generator is enabled to supply hydraulic pressure to the snubbing unit.
9. The multi-service mobile platform of claim 8, further comprising:
- a control cabin enabled for coupling to the upper level, the control cabin enabling monitoring and control of the hydraulic lift cylinders, the derrick, the rotary drive, the coiled tubing injector, the snubbing unit, and the wireline unit.
10. The multi-service mobile platform of claim 9, wherein the control cabin further comprises:
- a panorama window that enables direct view of the derrick, the platform base, and the well head.
11. The multi-service mobile platform of claim 10, further comprising:
- an electrical power generator enabled to supply electrical power to at least the derrick, the coiled tubing injector, the snubbing unit, the wireline unit, and the control cabin.
12. The multi-service mobile platform of claim 6, further comprising:
- a hydraulic pressure manifold accessible from the lower level, the hydraulic pressure manifold enabling access from the lower level to a plurality of hydraulic fittings providing fluid communication for hydraulic pressure.
13. The multi-service mobile platform of claim 6, wherein the platform base further comprises:
- a plurality of steel leaves covering the platform base, wherein at least one of the steel leaves is removably attached to the platform base to enable access to the lower level from the platform base.
14. The multi-service mobile platform of claim 6, wherein the upper level further comprises:
- an internal staircase from the platform base to the lower level; and
- a wellhead platform enabled for coupling to the upper level and accessible from the internal staircase, wherein the wellhead platform enables a worker to access the wellhead.
15. The multi-service mobile platform of claim 6, wherein the hydraulic pressure generator further comprises a plurality of hydraulic pumps, wherein each the hydraulic pumps is individually activated depending on a hydraulic load provided by the hydraulic pressure generator.
16. The multi-service mobile platform of claim 6, wherein all of the plurality of hydraulic pumps are activated at a maximum hydraulic load provided by the hydraulic pressure generator.
17. The multi-service mobile platform of claim 8, wherein the coiled tubing injector and the snubbing unit are integrated as a single unit.
18. The multi-service mobile platform of claim 11, wherein the derrick is a telescopic derrick that is attached to the platform base.
19. The multi-service mobile platform of claim 18, wherein the telescopic derrick supports strings of single pipe operations, double pipe operations, and triple pipe operations.
20. The multi-service mobile platform of claim 6, further comprising:
- a rotary table installed at the platform base.
21. The multi-service mobile platform of claim 20, further comprising: wherein the pair of power tongs and the auto-torque pipe wrench are enabled for use with the rotary table.
- a pair of power tongs; and
- an auto-torque pipe wrench,
22. The multi-service mobile platform of claim 6, wherein the derrick further comprises a tie-off point for the coiled tubing injector when the coiled tubing injector is in use.
23. The multi-service mobile platform of claim 22, wherein the tie-off point is adjustable at different heights with respect to the derrick.
24. The multi-service mobile platform of claim 8, further comprising:
- a driver for the wireline unit attached to the derrick.
25. The multi-service mobile platform of claim 9, further comprising:
- an auxiliary platform enabled for coupling to the upper level at an opposing side of the upper level from the control cabin, wherein the auxiliary platform is enabled for:
- stowing the coiled tubing injector when the coiled tubing injector is not in use.
26. The multi-service mobile platform of claim 25, wherein the auxiliary platform further comprises:
- a choke manifold enabled to change direction of fluid flow in fluid communication with the wellhead; and
- an accumulator enabled to activate a blowout preventer installed on the wellhead.
27. The multi-service mobile platform of claim 9, wherein the control cabin further comprises:
- at least two hydraulic rams enabled to raise or lower the control cabin relative to the upper level.
28. The multi-service mobile platform of claim 8, further comprising:
- a plurality of outriggers enabled to structurally support the base platform structure, wherein the outriggers increase the weight capacity of the multi-service mobile platform when deployed on the ground.
29. The multi-service mobile platform of claim 28, wherein the outriggers are enabled for lifting off the ground when the mechanical feet walk the multi-service mobile platform.
30. The multi-service mobile platform of claim 18, further comprising:
- a draw works attached to the upper level, the draw works operating in conjunction with the rotary drive and enabled to raise and lower the telescoping derrick.
31. The multi-service mobile platform of claim 30, wherein the draw works is powered by the hydraulic pressure generator.
32. The multi-service mobile platform of claim 30, wherein the draw works is powered by the electrical power generator.
33. The multi-service mobile platform 6, wherein the base platform structure further comprises:
- at least one supplemental box to elevate the multi-service mobile platform by a height of the supplemental box.
Type: Application
Filed: Oct 23, 2018
Publication Date: Apr 23, 2020
Inventors: Sharlene Dawn Lindsay (Katy, TX), Waylin Bruce Ott (Longview, TX)
Application Number: 16/168,751