Abstract: Apparatuses and methods comprising a cementing head comprising a stationary body comprising a toothed ring; a rotating body disposed below the stationary body, the rotating body comprising an armature disposed inside the toothed ring; a battery disposed on the rotating body; and a wire connected to the armature and the battery.

Abstract: A downhole well pumping assembly has a shroud with an upper section and a lower section sealed from one another. A submersible pump and a gas separator are housed within the upper section of the shroud. The gas separator has a liquid outlet in fluid communication with an intake of the pump, and a gas outlet in fluid communication with the gas outlet in the shroud. A motor is housed within the lower section of the shroud, the motor being coupled to the gas separator for rotating the gas Separator and the pump. A well fluid lower inlet is in the shroud below the motor and a well fluid lower outlet is in the shroud above the motor.

Abstract: An actuator and counterbalance system including a nonmobile carrier; a mobile carrier, mobile relative to the non mobile carrier; and a counterbalance system in operable communication with the mobile carrier and configured to counterbalance less than 100 percent of a return force of a tool actuated by the actuator and method.

Abstract: A system for producing wellbore fluids. The system includes a pumping system deployable into tubing disposed in a wellbore, the pumping system includes a pump, a pump motor, a reservoir for containing purging fluid, and conductors in electrical communication with the pump motor. Electrical supply contacts are provided in the tubing and are connected to a downhole electrical power supply via a power cable extending along the tubing length from the surface. The conductors are engageable with the electrical supply contacts when the pumping system is landed within the tubing. Purging fluid in the reservoir can be flowed between the conductors and the supply contacts to remove conductive fluid prior to engaging the conductors and supply contacts. The conductors are selectively extended from a retracted position in the pumping system. In an alternative embodiment, the electrical supply contacts are provided at locations along the length of the tubing.

Abstract: An electronics package of substantially monolithic configuration. The package is particularly adept at enhancing heat dissipation and avoiding secondary shock when placed in harsh application environments. Thus, the package may be particularly well suited for use in conjunction with high shock producing downhole application environments such as bridge plug setting.

Abstract: A wellbore insert comprises a housing that further comprises an inner annulus and one or more ports dimensioned and configured to provide a fluid pathway between the inner annulus of the housing and the outer surface of the housing. A selectively movable port seal, operable via a port seal mover, is dimensioned and configured to selectively occlude or open these ports. A movable plug, controlled by a plug mover, operates within the housing to selectively permit or occlude fluid flow within the housing. A power supply and a detector are typically present within the housing. An individually addressable electronic control module is operable to effect a change in the position of the selectively movable port seal and/or the movable plug. The wellbore insert can be used for downhole operations such as frac operations.

Abstract: A power transmission system for use with downhole equipment in a borehole includes a power source that is positioned at the surface providing a DC power supply, a downhole DC/DC converter and a two-conductor cable connecting the power source and the downhole DC/DC converter. The power transmission system receives the DC voltage supply as an input and provides an output DC supply at a different voltage to the DC power supply for provision to the downhole equipment.

Abstract: The invention relates generally to oil and gas exploration and production and, more particularly, to a system and associated method for producing hydrocarbons from multiple layers of subterranean formations, and the mixing or comingling of such hydrocarbons as necessary or desired during the production process. A subterranean tool is disclosed, having a plurality of tubular sections connected by a novel non-threaded linear connection system. An electrical passage can then be provided within the cylinder wall of contiguous sections permitting connection of electronics in different sections of the tool. Bushings and seals located in the electrical passage maintain an atmospheric pressure environment for electrical components inside the tool.

Abstract: A technique provides an electric submersible pumping system to facilitate a well treatment, such as a hydraulic fracturing well treatment. The electric submersible pumping system is positioned downhole and oriented to intake a fluid delivered downhole for use in the well treatment. Once the fluid is delivered downhole, the electric submersible pumping system pumps, pressurizes and discharges this fluid to perform the well treatment, e.g. the hydraulic fracturing treatment. The pumping system reduces the pressure at which the treatment fluid must be delivered downhole.

Abstract: An electronic control system for a downhole tool controls an operational state of the downhole tool. The electronic control system receives a signal from uphole, and drives a motor to operate a valve, alternately fluidly connecting a chamber in the valve to drilling fluid in a bore of the downhole tool, causing an activation mechanism to configure the downhole tool into a first state, and fluidly connecting the chamber to an annulus surrounding the downhole tool, venting mud into the annulus.

Abstract: An oil well sealing device that is submergible for sealing under water oil wells and a method for sealing underwater oil wells are described. The device comprises a housing having at least one lower opening at a lower end of the housing and at least one upper opening at an upper end of the housing; a pump sucking oil through the lower opening into the housing and pushing the oil through the upper opening out of the housing; and a closing element movable to close or open the upper opening.

Abstract: A technique provides a system and methodology for enhancing the operational life of an electric submersible pumping system. A completion is combined with a flow diverter valve and is positioned downhole in a wellbore. An electric submersible pumping system is coupled into the completion and the flow diverter valve is oriented to control fluid flow with respect to the electric submersible pumping system. For example, the flow diverter valve may be automatically operable to direct well fluid to the electric submersible pumping system when the pumping system is operating and to direct well fluid to bypass the electric submersible pumping system when the pumping system is not operating.

Abstract: A source of motion for actuation of a downhole tool is in a sealed housing to protect it from well fluids. The sealed housing is filled with an incompressible fluid and thermal effects can be compensated preferably with a compensation bellows in communication with the fluid. The source of motion is preferable electrically powered and the longitudinal motion that results presses against a bellows within the sealed housing. This master bellows is in sealed contact with a slave bellows through a rigid housing that is seal welded to the housing wall. Movement of the master bellows in the housing results in an equal movement of the slave bellows outside the housing. Feedback loops or calibration for thermal effects are also contemplated.

Abstract: A tubular cutter is run in on slickline. It features onboard power to selectively actuate an anchor and to initiate a tubular cutting operation with a cutter that is extendable and rotatable on its axis and the axis of the tool that carries an on board power supply.

Abstract: A stroker tool for providing an axial force in an axial direction of a downhole tool. The stroker tool has a pump, a driving unit for driving the pump, and an axial force generator. The generator has an elongated piston housing having a first and a second end, and a piston provided on a shaft, and the shaft penetrates the housing for transmitting the axial force to another tool. The piston is provided in the piston housing so that the shaft penetrates the piston and each end of the piston housing and divides the housing into a first and a second chamber, and the first and the second chamber are each fluidly connected to the pump via at least one duct so that the pump can pump fluid into one chamber by sucking fluid from the other chamber for moving the piston within the housing, and thereby moving the shaft back and forth.

Abstract: A downhole tubular scraper is run in on slickline with an on board power supply. It features counter-rotating scrapers without an anchor in one embodiment or an anchor with single rotating scrapers. The scraper is selectively operated to conserve power in the power supply. A drive system uses a single driver to obtain counter-rotating motion in the scrapers.

Abstract: An actuator control system includes a housing assembly having at least one line therein for controlling operation of an actuator, and a modular controller attached externally to the housing assembly and interconnected to the line. A method of constructing an actuator control system includes the steps of: assembling a modular controller, the modular controller including a control valve therein for controlling operation of an actuator via a hydraulic line; testing the modular controller, including functionally testing the control valve; and then attaching the modular controller to a housing assembly having the line formed therein. Another actuator control system includes a housing assembly having at least one line therein for controlling operation of an actuator, and a modular controller attached separately to the housing assembly and interconnected to the line via a manifold of the modular controller, the manifold including a concave interface surface which receives the housing assembly therein.

Abstract: An electric power cable for high temperature environments includes an electric conductor; an electrical insulator disposed on the electric conductor to form an insulated conductor, the electrical insulator suited for operation in a high temperature environment; and a protective sheath disposed over the insulated conductor to form a sheathed conductor.

Abstract: Production logging apparatus and method are provided. The apparatus comprises a coupling module, an electronic module, a micro-winch, a docking station, and a micro-production logging tool. The coupling module provides mechanical support for the production logging apparatus below a pumping arrangement disposed in a wellbore, and allows flow to enter the pumping arrangement. The electronic module comprises a winch controller, a powering module and a telemetry module, and adapted to automate the micro-winch. The docking station comprises a latching mechanism for ensuring positive engagement of a micro-production logging tool with the production logging apparatus during docking. And the micro-production logging tool comprises at least one sensor and is coupled to the micro-winch by a cable for regular production logging runs to measure the evolution of well characteristics.

Abstract: Embodiments disclosed herein relate to a method and a system to deploy a downhole pump within a well. The system includes the downhole pump disposed in a well, the downhole pump having a motor, and a cable having at least one strength member layer bonded to a cable core, in which a first end is connected to a power source disposed at a surface of the well and a second end is connected to the downhole pump. The cable is configured to support and power the downhole pump in the well.

Abstract: An actuation apparatus includes an electronics module (102), an actuator module (104) coupled to the electronics module and electrically communicating with the electronics module, and a motor (112) in the actuator module coupled to a drive member (106), the drive member moveable between a first position and a second position, wherein the movement of the drive member between the first and second positions is adjustable in response to a signal from the electronics module. In some embodiments, the electronics module is operable to adjust a speed of the drive member. The motor may be a brushless direct current motor. In other embodiments, the actuation apparatus (300) includes a processor and a memory, the adjustable drive member is engaged with an actuatable tool (200), the processor receives feedback from the drive member and the tool, and the processor is operable to create a signature in response to the movement of the drive member and compare the signature to a baseline.

Abstract: Measurement and/or control units located within a borehole are inductively coupled to a flat three phase power cable segment without piercing the armor around the cable. For drawing power from the cable, C-shaped, L-shaped or straight core(s) with winding(s) around at least a portion thereof are positioned proximate to one or both end conductors, outside the armor, with significantly overlapping the center conductor. For impressing or detecting signals on the cable, straight core(s) with winding(s) around at least a portion thereof are disposed on one or both sides of the cable, outside the armor, across all three conductors with the core oriented transverse to the cable conductors.

Abstract: When injecting liquids into the ground, imposing pulses on the injected liquid is effective to increase penetration and saturation of the ground. Imposing suckback onto the pulses is effective to make the liquid in the ground behave as a coherent unitary body, surging out and back each pulse, and to super-saturate the ground. The tool includes a suckback-chamber, which is timed to open to the ground formation just as the pulse-valve closes. A biasser (e.g a spring) drives the chamber open and sucks in some of the liquid from the ground. The chamber is then emptied, back to the ground, by the rising pressure as the pulsing tool is recharged. The suckback-chamber can be added to any type of pulsing tool.

Abstract: A technique facilitates the employment of an electric submersible pumping system or other well system downhole into a wellbore. The electric motor system is coupled with a signal carrying cable for conveyance to a desired downhole location in the wellbore. The signal carrying cable is constructed with sufficient strength to solely support the electric motor system during deployment and use in the wellbore without addition of a separate supporting mechanism.

Abstract: An electronic actuation system for a pressure equalising device in a downhole apparatus such as a wellbore plug is described. The system includes a pressure sensor for measuring pressure in the wellbore, and means for setting a reference pressure value using a measurement from the pressure sensor. In a method of use, an applied pressure value is determined using a measurement from the pressure sensor and the reference pressure value, and the device is actuated, or opened, when the applied pressure meets a pre-determined condition, such as falling within a pressure window for certain time period. The invention allows natural changes in wellbore pressure to be accounted for when detecting a pressure actuation event.

Abstract: A method of maintaining a substantially fixed orientation of a pressure control device relative to a movable rig can include rotating a body of the pressure control device while the rig rotates. A method of remotely controlling an orientation of a pressure control device relative to a movable rig can include rotating a body of the pressure control device, and controlling the rotation of the body from a location on the rig remote from the body. A pressure control device for use in conjunction with a rig can include a body, a flange, an orientation device which changes a rotational orientation of the body relative to the flange, and an orientation control system which remotely controls the orientation device.

Abstract: An apparatus, capable of being conveyed on wireline, for continuous downhole injection of foaming agent(s) and/or beneficial chemical(s), comprising a reservoir and means for dispensing foaming agent(s) and/or beneficial chemical(s) from the reservoir of such apparatus and into the surrounding wellbore environment.

Abstract: A subsea coiled tubing injector apparatus is disclosed. The subsea coiled tubing injector apparatus includes a linear actuator and a pair of carriages coupled via the linear actuator. The linear actuator is electrically powered and is configured to apply lateral force to the carriages. The carriages are configured to move substantially laterally with respect to one another. Each carriage includes a tubing engagement assembly configured to engage tubing interposed between the carriages.

Abstract: A technique controls the actuation of a downhole tool in a wellbore. The technique utilizes a rupture pressure membrane in a flow path of actuating fluid used to actuate the downhole tool. An energetic material is mounted proximate the rupture disc, and this energetic material may be selectively exploded. The resultant energy is sufficient to initiate rupture of the rupture pressure membrane which enables flow of actuating fluid to the downhole tool.

Abstract: A method and a system are provided for a direct drive pump for use in pumping fluids and/or quasi-fluids from one location to another. In the direct drive pump, bearings or bushings are optimally spaced, taking into account various operational considerations such as load, path, pressure, and tension. Further, bearings or bushings are coupled to the drive string, thus assisting in more efficient installation and de-installation. The bearings or bushings are not fixed to the production casing or drive tube. In embodiments, the drive tube can be vented, and the production fluid can be used as a lubricant for the system bearings.

Abstract: A technique facilitates a water flood, e.g. dump flood, operation. A standard electric submersible pumping system is deployed in a wellbore to draw water from an aquifer or water source zone along the wellbore. A shroud and a crossover port are used in combination with the submersible pumping system to redirect pumped water downwardly along an isolated flow path. The downward flow of pumped water is directed along the wellbore and injected into a desired, injection zone to facilitate recovery of oil or to perform other types of water flood operations.

Abstract: A shifting tool is run on slickline and has an on board power supply. Rotary motion of the motor is converted to linear motion of the shifting tool using a ball screw device. The grip is obtained with longitudinal motion of a grip linkage and an on board jar then can do the shifting. Alternatively a linear motor can be used to extend and retract the grip assembly and shift using the jar tool. Optionally the tool can be anchored and linear motion from the on board power source operating a motor can do the shifting.

Abstract: A system for producing wellbore fluids. The system includes a pumping system deployable into tubing disposed in a wellbore, the pumping system includes a pump, a pump motor, a reservoir for containing purging fluid, and conductors in electrical communication with the pump motor. Electrical supply contacts in the tubing are connected to a downhole electrical power supply via a power cable extending along the tubing length from the surface. The conductors are engageable with the electrical supply contacts when the pumping system is landed within the tubing. Purging fluid in the reservoir can be flowed between the conductors and the supply contacts to remove conductive fluid prior to engaging the conductors and supply contacts. The conductors are selectively extended from a retracted position in the pumping system.

Abstract: A system for producing wellbore fluids. The system includes a pumping system deployable into tubing disposed in a wellbore, the pumping system includes a pump, a pump motor, a reservoir for containing purging fluid, and conductors in electrical communication with the pump motor. Electrical supply contacts are provided in the tubing and are connected to a downhole electrical power supply via a power cable extending along the tubing length from the surface. The conductors are engageable with the electrical supply contacts when the pumping system is landed within the tubing. Purging fluid in the reservoir can be flowed between the conductors and the supply contacts to remove conductive fluid prior to engaging the conductors and supply contacts. The conductors are selectively extended from a retracted position in the pumping system. In an alternative embodiment, the electrical supply contacts are provided at locations along the length of the tubing.

Abstract: A deep well pump, especially a numerically controlled reciprocating submersible pump with freely adjustable parameters, includes a balancing sieve tube, a drive and a pump. The drive includes a stator with airtight cavity and reciprocating head with iron cores inside the stator. The stator and the reciprocating head form a friction couple via supporting guides and the reciprocating head iron cores. The stator's upper end is connected to the pump's lower end through the sieve tube. An oil tube is connected to the pump. The stator's lower end is connected to the balancing sieve tube, end plug and end coupler serially.

Abstract: A fluid-guiding and electric conducting system for a suspended electric submersible PCP comprises a fluid-guiding system and an electric conducting system. The fluid-guiding system comprises an upper connector, a protector, a fluid-guiding sleeve, a driving mechanism, a shaft coupling, a first annular cavity, a second annular cavity, a third annular cavity, a fourth annular cavity, and a fluid outlet. The first annular cavity, the second annular cavity, the third annular cavity, the fourth annular cavity, and the fluid outlet are connected orderly to the well fluid pipe. The electric conducting system comprises a motor lead wire, a center hole of the protector, a fifth annular cavity, and a wire outlet. The fluid-guiding and electric conducting system has the advantages of simple structure, low manufacturing cost, easy assembly and inexpensive maintenance.

Abstract: A power transmission system for use with downhole equipment in a borehole includes a power source that is positioned at the surface providing a DC power supply, a downhole DC/DC converter and a two-conductor cable connecting the power source and the downhole DC/DC converter. The power transmission system receives the DC voltage supply as an input and provides an output DC supply at a different voltage to the DC power supply for provision to the downhole equipment.

Abstract: A completion apparatus (4) for completing a wellbore comprises a) a tool to alternatively open and close a throughbore (15) of the completion; b) a tool (13) to alternatively open and close an annulus defined between the outer surface of the completion and the inner surface of the wellbore; c) a tool to alternatively provide and prevent a fluid circulation route from the throughbore of the completion to the said annulus (11); and d) at least one signal receiver and processing tool (9) capable of decoding signals received relating to the operation of tools a) to c).

Abstract: An actuator control system includes a housing assembly having at least one line therein for controlling operation of an actuator, and a modular controller attached externally to the housing assembly and interconnected to the line. A method of constructing an actuator control system includes the steps of: assembling a modular controller, the modular controller including a control valve therein for controlling operation of an actuator via a hydraulic line; testing the modular controller, including functionally testing the control valve; and then attaching the modular controller to a housing assembly having the line formed therein. Another actuator control system includes a housing assembly having at least one line therein for controlling operation of an actuator, and a modular controller attached separately to the housing assembly and interconnected to the line via a manifold of the modular controller, the manifold including a concave interface surface which receives the housing assembly therein.

Abstract: A method of producing a well utilizes a submersible pump run on a line, such as braided wire rope, that includes power conductors. The operator sets a packer in the casing, the packer having a check valve and a tieback receptacle. The operator pressure tests the integrity of the casing above the packer, and if it passes, then runs the pump assembly on the line. The pump assembly has a shroud with a downward extending extension that seals to the passage of the packer. If the pressure test of the casing fails, the operator runs a liner into the well and engages the tieback receptacle. A smaller diameter pump is then lowered on a line into the liner and into engagement with the packer.

Abstract: A downhole submersible pump system, method, and apparatus utilizes fiber optic sensors and distributed temperature sensors below the submersible pump to monitor pump discharge pressure and temperature, intake pressure and temperature, and motor temperature. In addition, distributed temperature sensors are used below the pump to monitor the perforations within the well bore.

Abstract: An electric power cable for high temperature environments includes an electric conductor; an electrical insulator disposed on the electric conductor to form an insulated conductor, the electrical insulator suited for operation in a high temperature environment; and a protective sheath disposed over the insulated conductor to form a sheathed conductor.

Abstract: An assembly for downhole applications comprises has an electric motor, a pump driven by the electric motor and having a lower pump inlet and an upper pump outlet, and a deployment tube from which the assembly is suspended from and by means of which the assembly can be lowered through the well. A nonrotating hollow shaft forms a bore extending from the tube through the motor and the pump to an assembly opening at the bottom of the assembly such that a device suspended on a wireline or coiled tube may be lowered through the deployment tube and pass through the electric motor and pump to a part of the well below the pump inlet. The motor is linked outside the bore to the pump for driving the pump.

Abstract: A downhole pump assembly for removing volumes of liquids, crude oils, gases, and produced waters, from oil or gas wells is described based on a downhole controllable electric drive, and a positive displacement pump, wherein the electric drive powers a hydraulic pump that powers the positive displacement pump.

Abstract: A centralizer for a well logging instrument includes a mandrel, a plurality of bow springs arranged circumferentially about the exterior surface of the mandrel and a biasing device in contact with one longitudinal end of each bow spring. The biasing device is configured to apply longitudinal biasing force to the longitudinal end of the respective bow spring.

Abstract: Embodiments of the present invention beneficially provide circuits and methods which isolate downhole electronics of a well pump assembly from a power surge. The pump assembly includes a motor and a housing, including head, base, and manifold plate. The head has a hollow interior and a shoulder. The head is mounted to the motor so that, in operation, oil from the motor fills the interior of the head. The base has an outside diameter to fit snugly inside the head. The manifold plate is located between an upper end of the base and the shoulder of the head so that the axis of the manifold plate is perpendicular to the axis of housing. A gauge circuit and an isolation circuit are mounted to the manifold plate. The isolation circuit includes active semiconductor elements to detect excessive voltage and to protect the gauge circuit from the excessive voltage.

Abstract: Apparatus and pumping systems including the apparatus are described, the apparatus including a protector body comprising a material allowing expansion and contraction of an internal fluid, the body serving as a barrier between fluids external of the body and the internal fluid. The body has first and second ends, at least one end adapted to connect the body to other components, the protector body further comprising structural features permitting facile cleanout and reuse of the protector body. Methods of use of the apparatus and systems are described, particularly in oilfield exploration, testing, and production. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims.

Abstract: A pumping system is described comprising a bracket being vertically fixed onto the connection end of a pump basement and also connected to a wellhead in order to support multiple fixed pulleys fixed on the same plane as the top end of the bracket), an electric motor and a speed reducer also successively being fixed to a lower end of the bracket. The end head of an output shaft of a speed reducer is connected by means of a crank whose top end head is connected with a movable pulley that is on the same plane as the fixed pulleys. A flexible cable vertically hung in the center of the wellhead is successively wound across the fixed pulleys and the movable pulley and then is locked onto the pump basement. The flexible cable is downwardly connected to a plunger element of an upper wellhead canned pump and also to a plunger element of a downhole oil well pump.

Abstract: A mover stabilizing and stator cooling arrangement includes an upper sleeve surrounding the mover of the linear motor, a lower sleeve, a thermoconducting sleeve surrounding the stator and axially connected between the upper sleeve and the lower sleeve, a thermal grease filled in the space defined between the upper sleeve and the mover and the space defined between the thermoconducting sleeve and the stator and the space defined between the lower sleeve and the outer tube for quick dissipation of waste heat, a stabilizer ring set between the upper sleeve and the mover to stabilize axial movement of the mover, and a piston and multiple one-way valve sets mounted in the space between the lower sleeve and the outer tube for allowing adjustment of the volume in the thermoconducting sleeve subject expansion/contraction of the thermal grease during temperature change.

Abstract: A well bore servicing apparatus comprising an first sleeve slidably disposed in a tubing section, an second sleeve slidably disposed in the first sleeve, an indexing slot disposed on one of the outer sleeve and inner sleeve, and a control lug disposed on the other of the outer sleeve and the inner sleeve to communicate with the indexing slot, and an expandable seat disposed in the inner sleeve to receive a plurality of obturating members. A well bore servicing apparatus comprising a work string, a tubing section coupled to the work string, a plurality of sleeve assemblies disposed in the tubing section, and a plurality of seats for receiving an obturating member, one seat disposed in each of the sleeve assemblies, wherein the plurality of seats are substantially the same size.