Abstract: A spool for deploying and retrieving multiple separate strings of continuous tubing, such as over the side of or through the moon pool of a boat, rig or other vessel, without the need of an injector head. The spool has at least one rotating swivel to permit pumping of fluid(s) down, or back up, tubing strings while the spool is rotating or stationary. A level-wind assembly having at least one sheave directs the continuous tubing overboard, but also level-winds the tubing onto the spool in an orderly fashion through lateral movement of the sheave. The system is powered by a hydraulic power unit with a remote control console.

Abstract: A tool 10 is provided for radially expanding a downhole tubular C, and includes a central tool mandrel 12, a tubular expander 48 at the lower end of the tubular, and a downhole actuator 15 for forcibly moving the expander axially within the downhole tubular. Slips 20 are positioned for securing the tool within a well, so that the slips may be set, and the tool subsequently stroked to move the expander 48 and radially expand a length of the tubular. Upward pull on the work string may expand long portions of the downhole tubular. Buttress threads 43 preferably support the tubular expander on the downhole tubular when run in the well.

Abstract: A method and apparatus for expanding a tubular member.

Abstract: A method and vessel for installing an expandable tubular in a subsea wellbore, wherein said expandable tubular is assembled from expandable tubular segments, said expandable tubular being adapted to be expanded diametrically when positioned in said wellbore by means of expansion tooling, wherein a multitude of expandable tubular segments are provided, and wherein use is made of a surface vessel, said vessel comprising: at least one assembly station adapted for the assembly of at least one intermediate tubular assembly by interconnection of multiple expandable tubular segments, an intermediate tubular assembly suspension storage device adapted for storage of one or more intermediate tubular assemblies, said intermediate tubular assemblies being suspended from the vessel into the water by said storage device, a guide and handling system for intermediate tubular assemblies, said guide and handling system having an entry and an exit, said entry being spaced from said exit, the entry being arranged and adapted

Abstract: Methods and apparatuses for installing lateral wells in an underground formation are provided. The methods and apparatuses allow for efficiency in a milling and installation process for the lateral well.

Abstract: A method is disclosed of radially expanding a tubular element in a wellbore formed in an earth formation. The method comprises arranging the tubular element in the wellbore whereby a lower end portion of the wall of the tubular element extends radially outward and in axially reverse direction so as to form an expanded tubular section extending around a remaining tubular section of the tubular element, whereby an annulus is defined between said expanded and remaining tubular sections. The expanded tubular section is axially extended by moving the remaining tubular section downward relative to the expanded tubular section so that said lower end portion of the wall bends radially outward and in axially reverse direction, and load transfer means is positioned in the annulus, the load transfer means being arranged to transfer a load between the remaining tubular section and the expanded tubular section.

Abstract: A geothermal heat pump system comprises at least one heat exchange unit and a ground loop in fluid communication with the at least one heat exchange unit. The ground loop has a feed into which heat exchange fluid is delivered by the at least one heat exchange unit and has a discharge via which circulated heat exchange fluid is returned to the at least one heat exchange unit. The ground loop comprises at least one fluid circuit formed of tubing arranged to define a plurality of laterally spaced, vertical coils buried in earth beneath a foundation slab of a building structure.

Abstract: In accordance with the teachings of the present invention, a system and method for forming an annular isolator between production tubing and a borehole wall is provided. A section of expandable tubing is installed in a borehole, and a sleeve disposed around a surface of the tubing cooperates with the tubing to form a fluid chamber. The sleeve includes a first portion that is predisposed to expand outwardly under fluid pressure from the fluid chamber, and a second portion that is configured such that, when expanded due to fluid pressure, the second portion stores energy that is biased to sustain the fluid pressure within the chamber, in response to a change in fluid volume. The tubing may be expanded using a tool disposed within the tubing.

Abstract: A method for radially expanding a tubular element in a wellbore formed in an earth formation comprises arranging the tubular element in the wellbore such that a lower end portion of the wall of the tubular element extends radially outward and in an axially reverse direction so as to define an expanded tubular section extending around a remaining tubular section of the tubular element, and axially extending the expanded tubular section by moving the remaining tubular section a selected distance downward relative to the expanded tubular section so that said lower end portion of the wall bends radially outward and in an axially reverse direction. The remaining tubular section is axially extended at an upper end thereof with an extended tubular portion of a length at least equal to said distance of downward movement of the remaining tubular section.

Abstract: A method is disclosed of creating a wellbore system, the method comprising arranging an expandable tubular element in a wellbore formed in an earth formation whereby a lower end portion of the wall of the tubular element extends radially outward and in axially reverse direction so as to form an expanded tubular section extending around a remaining tubular section of the tubular element, and axially extending the expanded tubular section by moving the remaining tubular section downward relative to the expanded tubular section so that said lower end portion of the wall bends radially outward and in axially reverse direction, whereby an annulus is defined between said expanded and remaining tubular sections, the annulus containing a body of fluid.

Abstract: A method and apparatus for expanding a tubular below a restriction in a wellbore. An expandable tubular may comprise a first end having a first wall thickness, a second end having a second wall thickness, and a middle section disposed between the first and second ends and having a third wall thickness that is less than the first and second wall thicknesses. The first and second ends may include one or more grooves disposed along a length of the ends. A method for expanding a tubular below a restriction in a wellbore may comprise running the tubular past the restriction, wherein the tubular comprises a first end and a second end, each end having a wall thickness greater than a wall thickness of a middle section disposed between the ends. The method may include expanding the tubular, wherein the first and second ends of the expanded tubular have outer diameters greater than the outer diameter of the middle section.

Abstract: A technique facilitates coiled tubing operations in offshore environments. The technique employs a spooled device, which is disposed on a reel located on an offshore facility. A guide system is mounted on the offshore facility to guide the spooled device from the reel, along a desired path, and down through the floor of the offshore facility. The guide system enables the coiled tubing job to be conducted without requiring a line of sight along the coiled tubing as it is delivered down through the offshore facility.

Abstract: A method of radially expanding a tubular element in a wellbore formed in an earth formation comprises arranging the tubular element in the wellbore such that a lower end portion of the wall of the tubular element extends radially outward and in an axially reverse direction so as to form an expanded tubular section extending around a remaining tubular section of the tubular element, whereby an annulus is defined between said expanded and remaining tubular sections, and axially extending the expanded tubular section by moving the remaining tubular section downward relative to the expanded tubular section so that said lower end portion of the wall bends radially outward and in an axially reverse direction. A diameter of the expanded tubular section is controlled by controlling a fluid pressure in the annulus.

Abstract: An apparatus and a method to control rotational positioning of continuous concentric tubing that extends from a surface downhole in a subterranean well or bore. In one version, a continuous cylindrical inner tube resides within and is concentric with a cylindrical outer tube. At least one elliptical lobe extends from the continuous inner tube. The invention utilizes diameter restrictions within and attached to the outer concentric tubing so that the elliptical lobe or lobes engage the diameter restrictions. Accordingly, rotation of one tube rotates or orients the other tube.

Abstract: An apparatus is shown for installing a pulling a submersible pump from a well bore where the pump is supported on a length of flexible tubing. The apparatus has a pivot frame located on a transportable base frame. A take up reel for the flexible tubing is also supported on the pivot frame by a pair of pivoting support arms. The take up reel is centered over the well bore by pivoting the reel on the support arms between a collapsed and a vertical work position. The reel can be further centered by pivoting the pivot frame in a horizontal plane relative to the base frame.

Abstract: A lubricator for use with a coiled tubing injector comprising an elongated housing having a first end and a second end. There is a guide system disposed in the housing for guiding coiled tubing passing through the housing, a first director proximal the first end of the housing to direct the coiled tubing in a first direction and a second director proximal the second end of the housing to direct the coiled tubing in a second direction.

Abstract: A method is disclosed of radially expanding a tubular element extending into a wellbore formed in an earth formation, the method comprising inducing the wall of the tubular element to bend radially outward and in axially reverse direction so as to form an expanded tubular section extending around a remaining tubular section of the tubular element, wherein said bending occurs in a bending zone of the tubular element. The bending zone is induced to move in axial direction relative to the remaining tubular section to increase the length of the expanded tubular section. An annular space is formed between the expanded tubular section and the remaining tubular section, wherein the method further comprises arranging a seal element in the annular space to define an upper portion and a lower portion of the annular space, said upper and lower portions being sealed from each other by the seal element.

Abstract: An apparatus having a modular support frame with a top deck. The top deck has a passage therein. A tower is mounted on the top deck. A moveable plate and a track are positioned within the passage. The movable plate is slidingly attached to the track. A support rotary table is disposed within the modular support frame and suspends jointed tubulars. A coiled tubing injector head interface plate is operatively attached to the movable plate, and positioned over the first aperture of the movable plate. The first aperture is positioned over the well in a first position. A rotary table is positioned over the well in a second position. Well intervention work is conducted with the coiled tubing and jointed tubulars.

Abstract: A hanger assembly and method for its use is included, along with various examples of alternative constructions for the hanger assembly. Also included are examples of new tool strings having capabilities facilitated as a result of use of the hanger assemblies. The hanger includes a deformable section that facilitates engaging contact with a surrounding structure. In preferred examples this engagement is achieved by use of a first deformable section of the hanger that extends radially outwardly from the remainder of the hangar body when the hanger is set; and a contact member that is further urged radially outwardly relative to that deformable section when the hanger is set.

Abstract: An expandable liner hanger system includes an expandable liner hanger and an expansion cone having a first outer diameter when driven through the expandable liner hanger in a first direction to expand the expandable tubing. The expandable liner hanger system also includes a polished bore receptacle having a lower end coupled to an upper end of the expandable liner hanger by a coupling, the coupling having an inner diameter smaller than the first outer diameter. In the run in condition, the expansion cone is positioned below the coupling.

Abstract: Methods and apparatus for radially expanding a tubular member.

Abstract: An expandable casing with enhanced collapse resistance and sealing capability. An expandable tubular for use in a subterranean well includes multiple recesses extending into a wall of the tubular, with the recesses being longitudinally spaced apart along the wall. A method of expanding tubulars in a subterranean well includes the steps of: expanding a tubular in the well, the tubular including multiple recesses extending into a wall of the tubular; and after the expanding step, allowing the wall of the tubular to retract radially inward more at each of the recesses than between the recesses.

Abstract: An apparatus for radially expanding and plastically deforming a tubular member.

Abstract: A method for radially expanding a tubular element in a wellbore and providing a control line that extends along the tubular element comprises (a) inducing the wall of the tubular element to bend radially outward and in axially reverse direction so as to form an expanded tubular section extending around a remaining tubular section of the tubular element, wherein said bending occurs in a bending zone of the tubular element, (b) increasing the length of the expanded tubular section by inducing the bending zone to move in axial direction relative to the remaining tubular section, wherein said wall includes a material that is plastically deformed in the bending zone during the bending process so that the expanded tubular section retains an expanded shape as a result of said plastic deformation, and (c) extending the control line along the tubular element.

Abstract: A tubular element can be expanded using an expander tool that includes a flexible sleeve having an outer diameter less than or equal to the inner diameter of the tubular element, a cone expander section on which the sleeve is mounted and an elongate mandrel. The cone expander section includes a first cone having a first narrow end that fits inside the sleeve and that increases in diameter from the first narrow end to a maximum at a base that is greater than the inner diameter of the sleeve but less than the inner diameter of the tubular element. The expander tool can be positioned at a predetermined location in the tubular element, fixed in place, and the expander section can be urged through the sleeve to expand the sleeve and thus the tubular element.

Abstract: According to the method, a cylindrical tube (1) is inserted into the well or the pipe (C) that is to be lined, after which part of the tube is radially expanded using an inflatable bladder (2) so that the wall of the tube is pressed against that of the well or of the pipe (C). According to the invention, this expansion is achieved by moving the already-expanded bladder axially and continuously along inside the tube (1) over a travel corresponding to the length of the tube or of the region of tube that is to be expanded. Fields of water or oil production.

Abstract: A liner for inserting into a drain hole, comprising a resilient tubular member with a central bore; wherein the tubular member is formed from a first continuous helically wound wire provided with a passageway to allow fluid communication across the member.

Abstract: A handheld tool for straightening coiled tubing in a continuous manner. The tool is configured to straighten coiled tubing that has undergone plastifying deformation, for example, during winding about a coiled tubing reel. The tool is of enhanced mobility and may be employed to provide a straightened portion of coiled tubing without resorting to intermittent reverse kinking or corrugating of the coiled tubing. Rather, the substantially continuous character of the straightened portion of coiled tubing is well suited for stably and reliably accommodating a downhole tool for use within a well during hydrocarbon recovery applications.

Abstract: A method for manufacturing the expandable tubular comprises forming a plurality of corrugated portions on the expandable tubular and separating adjacent corrugated portions by an uncorrugated portion. Thereafter, the expandable tubular is reformed to an uniform outer diameter. The expandable tubular may be used to complete a wellbore.

Abstract: A technique distributes localized stress acting on a tubular. The tubular is formed with an inner layer and an outer layer that is compliant relative to the inner layer. A force distribution material is disposed between the inner layer and the outer layer to spread any concentrated loads acting against the tubular. The compliant nature of the outer layer causes it to distort against the force distribution material when acted on by a concentrated external load. The outer compliant layer and the force distribution material cooperate to isolate and protect the inner layer from displacements of the surrounding subterranean material.

Abstract: A method for inserting a tool into a wellbore includes uncoiling a coiled tubing into the wellbore to a selected depth therein. When the tubing is at the selected depth, the tubing is uncoupled. A tool is inserted into the interior of the tubing. The tubing is reconnected, and the tool is moved along the interior of the tubing.

Abstract: A completion involving expandable tools and/or tubulars involves running the assembly downhole in a single trip. The expansion can take place using a swage or inflatable or other expansion techniques. The assembly can be delivered on production tubing so that upon conclusion of the expansion and the setting of any hangers and barriers production or injection can proceed from a pre-selected zone or zones.

Abstract: Apparatus for expanding first and second portions of a downhole tubular in a single trip comprises a support and first and second expansion devices. The first expansion device is mounted on the support and is operable to expand a first portion of tubular. The second expansion device is mounted to a second portion of tubular and is adapted to be engaged by the support following the expansion of the first portion of tubular, and is then used to expand the second portion of tubular.

Abstract: An artificial lift system provides an artificial lift design specifically for the pumping of liquids from natural gas wells, but not limited to this application. In doing so, production rates and reserves recovered can be significantly increased. The artificial lift system uses small diameter continuous tubing to run the pump in the hole and deliver small volumes of high pressure dry gas as a power fluid to the pump. This power fluid forces liquid that has been drawn into the pump from the bottom of the wellbore to surface. By removing the liquids from the wellbore the natural gas can flow unrestricted to surface. The design and equipment allow for a cost effective artificial lift alternative.

Abstract: An apparatus for the radial expansion and plastic deformation of a tubular member.

Abstract: A conductor delivery arrangement includes a length of feedable tubing; a landing tool in operable communication with the feedable tubing; and a conductor in operable communication with the landing tool and method.

Abstract: The present invention generally relates to a swage assembly that is movable from a compliant configuration having a first shape to a substantially non-compliant configuration having a second shape. In one aspect, an expansion swage for expanding a wellbore tubular is provided. The expansion swage includes a body and a solid cone disposed on the body. The expansion swage further includes a deformable cone disposed on the body, wherein the solid cone is made from a first material and the deformable cone is made from a second material and wherein the deformable cone is movable relative to the body when the expansion swage is in a compliant configuration. In another aspect, a method of expanding a wellbore tubular is provided.

Abstract: The invention relates to a method of radially expanding a tubular element. The method comprises inducing the wall of the tubular element to bend radially outward and in axially reverse direction so as to form an expanded tubular section extending around an unexpanded section of the tubular element, said wall having a resistance to radially outward bending and a resistance to stretching in circumferential direction. Said wall is provided with at least one of primary means for increasing the resistance to radially outward bending of the wall, and secondary means for reducing the resistance to stretching in circumferential direction of the wall.

Abstract: A method of expanding a tubular downhole comprises mounting a sensing device in a downhole tubular to be expanded, expanding at least a portion of the tubular and then engaging the sensing device with a retrieving device. The sensing device is then translated through the expanded tubular.

Abstract: A spoolable connector which connects two opposing sections of coil tubing so as to transmit load between one section of coil tubing and another section of coil tubing. The spoolable connector has opposing non-circular grooves into which portions of the sections of coil tubing are deformed so as to create the torque transmitting connection between the spoolable connector and sections of coil tubing. The spoolable connector also includes a plurality of parallel radial slots on each opposing end to enhance bending of the connector at the ends as well as a plurality of longitudinal slots at each end to accommodate the weld seam line in the coil tubing. Seals may be installed as a sleeve which in use fits over the mid-section of the connector.

Abstract: Disclosed herein is a downhole coiled tubing system. The system includes, a bottom hole assembly, a coiled tubing string attached to the bottom hole assembly, and a conductor comprising an electrical signal carrier disposed within a control line, the conductor is disposed within the coiled tubing string and maintained substantially parallel with the coiled tubing string throughout the coiled tubing string and electrically coupled to the bottom hole assembly.

Abstract: Although the methods have been described here for, and are most typically used for, hydrocarbon production, fluid diversion measurement systems and methods are described. One method includes inserting a tubular tubing having one more fluid injection ports into a wellbore, injecting a treatment fluid through the injection port, and determining differential flow of the treatment fluid at one or more wellbore based on measuring the concentration of at least one particular component of a wellbore fluid located in the annulus formed between the wellbore and tubular; and using the measured parameters in realtime to monitor, control, or both monitor and control diversion of the fluid.

Abstract: A method of expansion.

Abstract: An apparatus for inserting coiled tubing into a sub-sea pipeline comprising an adaptor which is releasably couplable to an anchor to hold the adaptor in position against lateral and/or vertical forces, the adaptor having: i) a first end comprising first coupling means for releasably coupling the adaptor to a riser and an opening through which coiled tubing can extend, ii) a second end comprising second coupling means for releasably coupling the adaptor to the anchor, and iii) a curved guide comprising an entrance end facing the opening and an exit end, the curved guide being in communication with the opening such that coiled tubing from the riser can extend through the opening and along the curved guide, the curved guide, in use, guiding the coiled tubing from a substantially vertical orientation at the entrance end to a substantially horizontal or near-horizontal orientation at the exit end.

Abstract: Some embodiments of a supply tube system for use in a wellbore may have multiple tubes, a number of which can be readily coupled to a downhole steam generator or other heated-fluid generator device. In certain embodiments, the system may include a connector that simplifies the process of coupling the supply tube system to the steam generator and provides for fluid communication between each supply conduit and the associated input port of the steam generator.

Abstract: The invention relates to a method of radially expanding a tubular element extending into a wellbore formed in an earth formation. The method comprises inducing the wall of the tubular element to bend radially outward and in axially reverse direction so as to form an expanded tubular section extending around a remaining tubular section of the tubular element, wherein said bending occurs in a bending zone of the tubular element. The method further comprises increasing the length of the expanded tubular section by inducing the bending zone to move in axial direction relative to the remaining tubular section. Said wall includes a material that is plastically deformed in the bending zone during the bending process so that the expanded tubular section retains an expanded shape as a result of said plastic deformation.

Abstract: Apparatus having a fiber optic tether disposed in coiled tubing for communicating information between downhole tools and sensors and surface equipment and methods of operating such equipment. Wellbore operations performed using the fiber optic enabled coiled tubing apparatus includes transmitting control signals from the surface equipment to the downhole equipment over the fiber optic tether, transmitting information gathered from at least one downhole sensor to the surface equipment over the fiber optic tether, or collecting information by measuring an optical property observed on the fiber optic tether. The downhole tools or sensors connected to the fiber optic tether may either include devices that manipulate or respond to optical signal directly or tools or sensors that operate according to conventional principles.

Abstract: Expandable casing has an expandable slip used for completion of a mono-diameter wellbore. The expandable casing is run through the upper casing and has an upper end that overlaps a lower end of the upper casing to form a fluid flow path between the expandable casing and the upper casing. The operator expands the overlapping portion of the expandable casing to an intermediate position, causing the expandable slip to anchor the expandable casing to the upper causing without blocking the flow path. Cement is then pumped up around the outside of the expandable casing and wellbore fluid displaced by the cement and excess cement are permitted to flow through the fluid flow path and up the upper casing. After sufficient cement is in place, the expandable casing is further expanded, compressing the expandable slip into to the inner wall of the upper casing and sealing off the fluid flow path.

Abstract: A downhole apparatus, for example a centraliser, comprises a swellable material which expands upon contact with at least one predetermined fluid. In a first aspect of the invention, a centraliser comprises a body and a plurality of formations upstanding from the body. In another aspect, a downhole apparatus comprises a throughbore configured to receive a tubular, a swellable member, and a rigid assembly integrally formed with the swellable member. The rigid assembly provides stand off to the apparatus in use. In a further aspect, the downhole apparatus has a first condition before expansion of the swellable member in which a rigid assembly defines a maximum outer diameter of the apparatus. In a second condition after expansion of the swellable member, the swellable member defines a maximum outer diameter of the apparatus. In a preferred embodiment, the rigid assembly is designed to flex or deform under an axial or radial load.

Abstract: A pipe injector assembly is disclosed, comprising: a pipe injector that includes at least three tubing drive units radially arranged around a feed axis along which tubing is fed, the tubing drive units having drive components that are laterally displaceable between a closed condition in which the drive components drivingly engage said tubing and an open condition in which the lateral spacing between the drive components is increased to permit the passage of a coupling of the tubing.