Abstract: A high energy tubular shear is connectable within a drilling system and includes a body forming a bore through which a tubular is disposed, a cross-bore intersecting the bore, opposing cutters moveably positioned in the cross-bore on opposite sides of the bore, and the each cutter in hydraulic communication with a respective hydraulic intensifier.

Abstract: Parts that need to be retained against relative movement are held with at least one collet that is captured in a groove with sleeve that acts as a piston. The piston is exposed to tubing pressure on opposed ends to be in pressure balance despite variations of pressure in the tubing. When it is desired to allow relative part movement to actuate the tool, one of the ports to the piston is isolated from the other and pressure drives the piston in a downhole direction. This releases the collet and drives a sleeve in an opposite direction to actuate a tool. The parts can be optionally rotationally locked.

Abstract: A method of coupling segments of a borehole conduit is disclosed. The method includes: positioning a first conduit segment at a location selected from a surface location and a downhole location, the first conduit segment having a first end and a second end, the first conduit segment including a pin connector at the first end; orienting the first conduit segment so that the first end is located uphole relative to the second end; and coupling a second conduit segment in operable communication with the first conduit segment, the second conduit segment having a box connector at an end of the second conduit segment that is configured to engage the pin connector of the first segment.

Abstract: A system and methodology facilitates conveyance of a tool, e.g. a downhole completion or completion component, via a tool string. The tool string comprises a contraction joint designed to contract if the tool incurs sufficient axial loading. The contraction joint may comprise an outer housing and a mandrel slidably received in the outer housing. The contraction joint also comprises a resettable locking member which selectively releases the mandrel with respect to the outer housing to contract the contraction joint when under sufficient axial loading.

Abstract: A downhole releasable tubular connection includes a joint between two tubing strings, wherein one of the two tubing strings is radially expanded and plastically deformed by an expansion device. When the expansion device is moved adjacent to the joint, a threaded connection mechanism in the joint reacts to the radially outward forces of the expansion device and releasably expands, thereby decoupling the tubing strings.

Abstract: A system or method includes providing coupler portions along a structure. The coupler portions are communicatively engageable with equipment in the structure.

Abstract: A wireline extension assembly comprises a first tubing string housing a wireline extension electrically interconnecting wet connects at the upper and lower ends of the first string, with the lower wet connect being electrically connected to a downhole tool. The assembly is pushed into the horizontal leg of a deviated wellbore by forming a second tubing string extending upward from the upper end of the first string, thereby positioning the tool within the horizontal leg while leaving the upper wet connect disposed within the vertical leg. A primary wireline is then run from a surface wireline unit into the upper string and connected to the upper wet connect, thus providing electrical power, data communication, and/or other facilities to the tool. The tool can be repositioned within the horizontal leg by withdrawing the primary wireline, removing or upper string tubing sections, and then reinstalling the primary wireline.

Abstract: A release assembly (200) for releasing a portion of a tool string in a wellbore. The release assembly (200) includes an outer housing (202) having a fishing receptacle (206) disposed therein. The fishing receptacle (206) includes a fishing neck (208). A support assembly (214) is disposed within the housing (202). The support assembly (214) has a first position wherein the support assembly (214) engages the fishing neck (208) to prevent separation of the fishing receptacle (206) from the housing (202) and a second position wherein the support assembly (214) is disengaged from the fishing neck (208) no longer preventing separation of the fishing receptacle (206) from the housing (202). An actuator (224), disposed within the housing (202), maintains the support assembly (214) in the first position until actuation thereof allows the support assembly (214) to shift to the second position.

Abstract: A technique is provided for engaging and disengaging an upper completion with a lower completion positioned in a wellbore. The upper completion comprises an upper communication line, and the lower completion comprises a lower communication line. The upper completion is mechanically latched with the lower completion and the communication lines are coupled in a manner that enables selective engagement and disengagement. A communication line union is used to connect the upper communication line and the lower communication line in a plurality of rotational orientations of the upper completion relative to the lower completion.

Abstract: A device comprises: a torsion lock sleeve, wherein the torsion lock sleeve comprises a crenellated second end, wherein the torsion lock sleeve is tubular in shape, and wherein at least a portion of the inner circumference of the torsion lock sleeve engages at least one ridge, wherein the ridge inhibits or prohibits rotational movement of the torsion lock sleeve; and a release nut, wherein the release nut comprises a crenellated first end, and wherein the first end of the release nut is capable of engaging the second end of the torsion lock sleeve.

Abstract: Welded downhole tools and methods are provided. The downhole tool is deployable into a wellbore penetrating a subterranean formation. The downhole tool includes a first downhole component having a first mating feature on at least one end thereof and at least one second downhole component weldably connectable to the end of the first downhole component. The second downhole component has a second mating feature on an end thereof. The first and second mating features include at least one raised ridge for concentric self-alignment along a common axis with the other of the first and second mating features whereby, upon frictional engagement of the end of the first downhole component with the end of the second component under heat and pressure, a welded connection is formed therebetween.

Abstract: A device has a first elongate tubular body and a second elongate tubular body coupled to the first tubular body, both adapted to reside in the wellbore. The device is changeable between the first tubular body axially fixed against movement in a first direction relative to the second tubular body and axially moveable in the first direction relative to the second elongate tubular body in response to temperature.

Abstract: A disconnect device comprises a tubular member having a window for receiving an engagement member, and a sleeve having connected and disconnected positions. The engagement member engages with a component of a downhole string to connect the disconnect device to the rest of the string such as through a helically-shaped thread disposed on the engagement member and on the component. The window can comprise at least one wall that is outwardly tapered so as to prevent the engagement member from passing through the window when the tubular member is disconnected from the component of the string. The engagement member is maintained within the window by the sleeve when in its connected position to maintain the connection between the tubular member and the component. When moved to its disconnected position, the engagement member disengages the component by moving inwardly into the bore of the tubular member.

Abstract: A drill pipe and a method of applying hardbanding thereto. A hardbanding alloy comprising iron and manganese present in the range of 67 to 87 weight percent (wt. %), niobium and chromium present in the range of 9 to 29 wt. %, and boron, carbon and silicon present in the range of 3 to 6.5 wt. % may be welded around at least a portion of a tool joint circumference. The hardbanding alloy may exhibit a hardness of 45 Rc to 70 Rc and a wear rate in the range of 0.08 grams to 1.60 grams of mass loss after 6,000 cycles as measured using ASTM G65-04, Procedure A.

Abstract: An adjustable bent drilling tool capable of changing in situ drilling direction to facilitate horizontal drilling. The drilling tool may be controlled from the surface and eliminates the need to bring the tool to the surface for reconfiguration. In one embodiment, the drilling tool utilizes a communications module to communicate with upstream sections of the tool. The communications module is connected to a programmable electronic control module which controls an electric motor. A hydraulic valve assembly follows the control module, which receives input signals and controls a pilot piston between two fixed points of a mid-assembly typically located adjacent to and downstream of the hydraulic valve assembly on the drill tool. A lower assembly is attached to the drill tool immediately following the mid-assembly, and provides both a safety release sub-assembly as well as a bendable sub-assembly which directs the adjustable drill tool to change drilling angle and direction.

Abstract: A hydraulic disconnect comprises: a downhole housing, an uphole housing, an inner mandrel, a piston, and a lock. The inner mandrel has a latch to restrict the downhole housing from relative downhole movement. The inner mandrel is connected for transmission of torque to the downhole housing. A piston is within the inner mandrel and has a latched position, and an unlatched position. The piston has a valve seat. The lock maintains the piston in the latched position, the lock being adapted to unlock in use upon receipt by the valve seat of a disconnect valve member and a predetermined hydraulic pressure. The uphole housing has a stop for restricting the downhole housing from relative uphole movement. The inner mandrel is threaded to the uphole housing and relative rotation between the uphole and the downhole housing tightens the downhole housing between the latch and the uphole housing.

Abstract: A wet disconnect system with post disconnection pressure integrity includes a bridge tube. One or more seals on the bridge tube that seal the bridge tube to one or more conductors passing through the bridge tube. A defeatable seal/anchor at the bridge tube sealing an outside surface of the bridge tube to an inside surface of a separate structure. The defeatable seal/anchor being defeatable upon application of an axial load above a threshold.

Abstract: A work string assembly for an oil or gas well has a first and second tubulars, and a torque limiting device connected in the work string. The torque limiting device has a body with an axial bore and two interconnected members that can disconnect to be relatively rotatable. The interconnected members can be repeatedly re-engageable when the torque levels drop below a torque threshold value, or can be connected by a frangible member that is broken when the interconnected members disconnect. A selectively actuable circulation port provided in the string adjacent to and above the torque limiting device allows the annulus between the work string and the casing to be flushed with fluid from the port.

Abstract: A tool for releasably coupling a first tubing to a second tubing in a wellbore has a tubular mandrel configured to couple to and be carried into the wellbore by the first tubing. A collet ring is in an interior of the mandrel and has a plurality of collets to engage the second tubing. A releasing piston is carried in the interior of the mandrel to change between supporting the collet ring such that the collets can release from the profile and allowing the collet ring to lock such that the collets are locked in the profile.

Abstract: A tool for releaseably coupling a first tubing to a second tubing in a wellbore has a tubular mandrel configured to couple to and be carried into the wellbore by the first tubing. A collet ring is in an interior of the mandrel and has a plurality of collets to engage the second tubing. A releasing piston is carried in the interior of the mandrel to change between supporting the collet ring such that the collets can release from the profile and allowing the collet ring to lock such that the collets are locked in the profile.

Abstract: New locking connector assemblies and telescoping extension/retraction assemblies are disclosed that operate on the natural spring rate constraints of radial protrusions or radially constrained rings as they interact with engaging members to provide the locking force and permit the connector and extension retraction assemblies to be engage and disengaged or extended and retracted.

Abstract: A latching mechanism for selectively disengaging an upper pump from a motor in an ESP. The latching mechanism comprises barbs formed on an upper end of an upper shaft that are engaged by a tool to lift the upper shaft until a lower end of the upper shaft disengages from an upper end of a motor shaft. When the upper pump is disengaged from the motor shaft, only a lower pump is driven by the motor and flow of well fluid is circulated past the disengaged upper pump via a bypass line. The upper pump shaft may reengage the motor shaft if additional lift is required.

Abstract: Perforating gun connectors are provided with a small diameter inner tube to house the detonating cord and an outer load-bearing tube that is ported to be in pressure balance. The inner tube controls the volume in the gun for the well fluids to enter after the guns are fired and the initial pressure surge dissipates. The smaller diameter also increases pressure rating and diminishes the chance of plastic deformation. Since the inner tube is inset even some deformation is tolerated without distorting the outer tube due to the space between the tubes. Alternative embodiments with a bored rod as a housing member or with a layered single outer wall effect are also contemplated.

Abstract: A method and apparatus for releasing a coiled tubing internal line from a bottom hole assembly. The internal line may not have strength sufficient to permit the application of a tension force at the surface to disconnect the internal line from the bottom hole assembly. The bottom hole assembly may include a ball seat adapted to retain a ball permitting the application of a pressure differential above and below the ball seat. An anchor assembly connected to the internal line may be adapted to disconnect from the bottom hole assembly upon the application of predetermined pressure differential. A predetermined pressure differential may be used to shear a portion of the internal line releasing an upper portion of the internal line from the bottom hole assembly.

Abstract: A tool for releasably coupling a first tubing to a second tubing in a wellbore has a tubular mandrel configured to couple to and be carried into the wellbore by the first tubing. A collet ring is in an interior of the mandrel and has a plurality of collets to engage the second tubing. A releasing piston is carried in the interior of the mandrel to change between supporting the collet ring such that the collets can release from the profile and allowing the collet ring to lock such that the collets are locked in the profile.

Abstract: A system for sealingly engaging multiple downhole tubulars includes a first downhole tubular, a guide assembly and a swellable seal. The first downhole tubular includes an end for receiving a second downhole tubular. The guide assembly is disposed on an end of the second tubular. A swellable seal is disposed on an outer surface of the guide assembly. After the first tubular receives a second tubular, the swellable seal is activated to form an expanded circumferential seal between the first tubular and the second tubular.

Abstract: An engaging device includes a body selectively slidably engagable about a first tubular runnable within a second tubular. The body is runnable past at least one profile on the second tubular in a first direction during a first running and is prevented from running past the at least one profile on subsequent runs subsequent to running by the at least one profile in a second direction.

Abstract: A testing method for connectors usable with oil or natural gas wells using a test part connector and a control component connector. The method uses a test fluid in a test reservoir that is pumped to each connector simultaneously, uses a test part pressure transducer and a control component pressure transducer to create a test response and a control response. The responses are then transmitted as compared results to a user.

Abstract: A threaded end (1; 2) of a tubular component for drilling or working hydrocarbon wells, said end comprising a threaded zone (3; 4) produced on its external or internal peripheral surface depending on whether the threaded end is male or female in type, at least a portion of the end (1; 2) being coated with a dry film comprising an organic matrix in which ion exchange pigments are dispersed in proportions in the range 3% to 30% by weight; and a connection resulting from connecting two corresponding ends by makeup.

Abstract: A hybrid junction assembly is provided. The hybrid junction assembly may comprise a junction body configured to sealingly couple to a first control line and a second control line. In addition, the assembly may include a transfer conduit configured to fit within a hybrid control line such that an annulus is formed between the transfer conduit and the hybrid control line. The first control line and the transfer conduit may form a first communication pathway and the second control line and the annulus may form a second communication pathway. The transfer conduit and the hybrid control line may be sealingly coupled to the junction body.

Abstract: A system and method for testing a fluid seal in a device can include pumping fluid to the device and a control device simultaneously, while measuring the pressure of the fluid pumping to both devices. A change in volume of the fluid in the control device can be initiated, a change in pressure difference associated with the change in volume can be determined, and a leak test ratio can be formed therefrom. Changes in the pressure difference can be used to determine the presence of fluid leaks, which can be presented as test results to users connected to a network. A leak volume can be determined using the change in pressure difference and the leak test ratio.

Abstract: A wear band for a well drill pipe which is made up of a coil spring sized to fit at the joint of the well drill pipe or casing. The inner surface of the coil spring includes a textured coating such as a carbide. The outer surface includes a plurality of hydrodynamic dimples defined therein, and preferably both the outer surface and the inner surface are adapted to resist corrosion. The abrasive coating preferably consists essentially of 95% tungsten carbide and a binder of 5% cobalt and coats an amount of the inner surface in the range of 50% to 100%. The hydrodynamic dimples are generally tear drop in shape to act as miniature fluid pumps. As a result, the wear band can be mechanically attached to the drill pipe while eliminating the need for metallurgically-welded hardbands and therefore unaffecting the drill pipe properties and dimensions.

Abstract: Concentric control lines have an outer line disposed about one or more inner lines. Encapsulated together, the lines only require one penetration through the wellhead to extend downhole. At the wellhead, the lines communicate with an operating system, which can provide hydraulics, electric power, signals, or the like for downhole components. Beyond the wellhead, the concentric lines extend along the tubing to a manifold. The outer line sealably terminates at the manifold's inlet, while the inner conduit passes out an outlet with a sealed fitting to connect to a downhole component. A downhole line couples to an outlet of the manifold and communicates internally with the outer conduit terminated at the manifold's inlet. This downhole line can then extend to the same downhole component or some different component.

Abstract: A downhole tubular connector comprising a first body portion and a seal provided on the first body portion, the seal being adapted to selectively provide a seal with a downhole tubular, the downhole tubular connector further comprises a seal protector, wherein one of the seal protector and seal is movable with respect to the other of the seal protector and seal, the seal protector or seal being movable from a first position, in which at least a portion of the seal is protected by a first end of the seal protector, to a second position, in which the portion of the seal is exposed. The seal protector may be disposed so as to be movable from the first position to the second position by contact of the sleeve with the downhole tubular as the downhole tubular connector is brought into engagement with the downhole tubular.

Abstract: Assemblies that can be disposed in a subterranean bore are described. Certain assemblies can be used to orient a second pipe with respect to a first pipe in a bore. A second pipe can be rotationally oriented without breaking one or more control lines that may be associated or included with the second pipe by using a tool that orients the second pipe as the second pipe is moved toward a surface of the bore. In some embodiments, assemblies can be used to orient multiple portions of the second pipe with respect to multiple windows of the first pipe. The first pipe may be a casing string and the second pipe may be a tubing string.

Abstract: A drill pipe includes a pin end connector, a box end connector, a first communication connector and a second communication connector. The pin end connector includes a first region to form a threaded connection to join sections of the drill pipe together, and the first region includes at least one thread that begins at one end of the first region and ends at the other end of the first region. The box end connector receives the pin end connector, and the box end connector includes a second region to mate with the first region to form the threaded connection. The first communication connector is attached to the pin end connector and is located in the first region; and the second communication connector is attached to the box end connector and located in the second region to form a communication connection with the first communication connector.

Abstract: A unique landing nipple has spaced control line connections and external control lines running from the surface to those connections. A hydraulic barrier valve, such as a ball valve, is run in to a predetermined landing nipple and latched in position where the control line connections are in the right locations to operate the valve. A landing nipple with a latching groove alone can be used with a wireline run barrier valve to latch it into position at the desired location. A shifting tool is used to operate the mechanically actuated valve. More than one valve can be positioned or used in the string at a time or the same valve can also be positioned at different landing nipples at different times to meet the production needs of the well operator.

Abstract: An adjustable bent housing includes an outer tubular member having an interior surface defining an interior bore. The outer tubular member has a first angular offset. An inner tubular member is provided and has an exterior surface. The inner tubular member has a second angular offset. The inner tubular member has at least one engagement end received within the interior bore of the outer tubular member. A desired cumulative angular offset is selected by relative rotation of the outer tubular member and the inner tubular member to adjust the positioning of the first angular offset relative to the second angular offset. A rotational stop is provided that limits relative rotation of the outer tubular member and the inner tubular member to a limited rotational range. A locking sleeve locks the outer tubular member and the inner tubular member in a selected rotational position to fix the cumulative angular offset.

Abstract: A threaded pipe connection is shown which features a pressure energized flex-seal structure. The connection includes a first box member having a box end, the box end having an end opening defining an interior surface with internal threads, the internal threads being defined by crests and roots and opposing flanks. A second, mating pin member has a pin end with a pin nose, the pin end having an exterior surface with mating external threads, the external threads also having crests and roots and opposing flanks, at least selected ones of which move into engagement with the internal threads of the box when the connection is made up. A flex-seal region is located on either the box and interior surface or the pin end which forms a primary containment seal upon make up of the connection.

Abstract: A chemical injection line connector includes first and second couplings configured to automatically seal shut when the members are disengaged. A method for blocking contamination or pressure transfer of chemical injection lines includes securing first and second couplings to corresponding ends of a chemical injection line and automatically sealing the couplings shut when the couplings are disengaged.

Abstract: Apparatus and methods for selectively releasing a first wellbore component to a second wellbore component using a disconnect device. The method includes coupling a disconnect device to a workstring and a downhole tool; performing a downhole operation using the downhole tool, and selectively releasing an upper portion of the disconnect device from a lower portion of the disconnect device, thereby releasing the downhole tool from the workstring. The method may also include reconnecting the upper portion of the disconnect device to the lower portion of the disconnect device. The disconnect device is capable of transferring torque to the wellbore component.

Abstract: The invention relates to a rod coupling for rod segments for use in horizontal earth boring, wherein the ends of the rod segments can be interconnected and are fixed by means of a cross pin.

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 set for obtaining a threaded connection used in hydrocarbon wells includes a first tubular component, a second tubular component, and a third tubular component. A threaded zone provided on an internal circumferential surface of an end of the third component cooperates by makeup with one of two threaded zones of an end of the first component. A threaded zone provided on an external circumferential surface of the end of the third component cooperates by makeup with one of two threaded zones of the second component. The second and third components define an end of makeup of the threaded zones. The other threaded zone provided on the end of the first component cooperates by makeup with the other threaded zone provided on the second component.

Abstract: A junction box is disclosed. The junction box is made of a body member defining a first port and a second port, the first port adapted to receive a first portion of a first downhole tool, and the second port adapted to receive a second portion of a second downhole tool, the body member defining an electric chamber intersecting the first port and the second port within the body member; a first mechanical connection on the first port for securing the first downhole tool; a second mechanical connection on the second port for securing the second downhole tool; a first electric connector installed on the first port; a second electric connector installed on the second port; and electric wiring positioned within the electric chamber and connected to the first electric connector and the second electric connector to couple the first electric connector and the second electric connector.

Abstract: A galling-resistant threaded tubular component for drilling or operating hydrocarbon wells is described, said tubular component having at one of its ends (1; 2) a threaded zone (3; 4) produced on its external or internal peripheral surface depending on whether the threaded end is male or female in type, at least a portion of the end (1; 2) being coated with a dry film comprising a fluorourethane matrix. A process for coating said component.

Abstract: A method of installing a wellbore junction assembly in a well can include connecting at least two tubular strings to one opposite end of a tubular string connector with similarly dimensioned oriented connections, whereby the tubular strings are interchangeably connectable to the connector by the oriented connections. A wellbore junction assembly can include at least two tubular strings and a tubular string connector having opposite ends. Each of the tubular strings may be secured to one opposite end of the connector by oriented connections, whereby each of the tubular strings has a fixed rotational orientation relative to the connector. A well system can include a tubular string connector, each of first and second tubular strings being secured to the connector, and a support which reduces bending of the second tubular string which results from deflection of the second tubular string from one wellbore section into another wellbore section.

Abstract: A coupling device includes an upper adapter and a lower adapter. The lower adapter may be pre-installed on a downhole tool and positioned in a wellbore. The upper adapter may be attached to a conveyance and lowered into the wellbore for connection with the lower adapter. The upper adapter may be coupled to the lower adapter by sliding over the lower adapter and applying weight to actuate a locking mechanism. After coupling, axial and torque load may be transmitted from the conveyance to the downhole tool.

Abstract: Implementations of the present invention include drill string components having a thread extending around a body. The leading end of the thread can have a configuration that resists jamming and cross-threading. In particular, the leading end of the thread can include a planar surface normal to the body. The leading end of the thread can provide an abrupt transition to full thread depth that helps reduce or eliminate cross-threading. The leading end of the thread can be oriented at an angle relative to the axis of the drill string component. When mating male and female threads are similarly structured, the mating threads slide together along an interface at the thread start face and are drawn into a fully thread-coupled condition. The thread starts may have full circumference mating with no jamming positions.

Abstract: Embodiments of the present invention provide an effective seal and connector that maintain a removable mechanical and electrical connection between any two down hole power cables, despite cable movement and well pressure. The connector preferably includes a fluid seal comprised an encasing material that surrounds and/or adheres to protective tubing encapsulating an electrical cable's conductor wires. The encasing material may also surround and/or adhere to the conductive wire's insulation to prevent its outward expansion during well pressure events. The connector's fluid seal also comprises a relatively rigid connection between the connector's protective outer sleeve and the protective tubing encapsulating the conductor wire.