Abstract: A method for operating a kerogen-rich unconventional gas reservoir characterized by there being multiple hydraulically-fractured wells drilled thereinto comprises: recovering a methane-containing gas from a first hydraulically-fractured well drilled into the gas reservoir, steam-methane reforming the recovered methane-containing gas to yield a hydrogen gas and an inorganic carbon-containing gas, injecting at least a portion of the hydrogen gas into a second hydraulically-fractured well drilled into the gas reservoir, and injecting at least a portion of the inorganic carbon-containing gas into a third hydraulically-fractured well drilled into the gas reservoir.

Abstract: A flow control valve configured to be positioned in a tubing in a borehole formed in a subsurface formation, wherein the flow control is used to regulate a flow of an injection fluid into the subsurface formation based on a vapor-transition characteristic of a fluid contained within a chamber of the flow control valve.

Abstract: Systems and methods of the present disclosure relate to wellbore scraping operations. A method comprises running a scraper tool into a wellbore with blades retracted; dropping a ball into an expandable seat of the scraper tool to build pressure; pumping fluid into the scraper tool to deploy a mandrel to compress a spring to rotate a j-slot to a second position from a first position to extend the blades; building pressure until the ball is released from the expandable seat; and moving the mandrel to a third position on the j-slot to lock the extended blades in place.

Abstract: A system includes a setting tool, which includes a housing, a piston, and an inner mandrel, and a settable device. The housing includes a first section configured as a setting sleeve, an intermediate section, and a second section. The piston includes an interior power charge chamber and a piston housing including at least one passage in fluid communication with the power charge chamber that interfaces with a top face of the intermediate section of the housing. The piston is mounted within a second bore of the second section via an anti-present mechanism. The inner mandrel is received in the second bore within a bottom recess of the piston housing and extends longitudinally through bores of the intermediate and first sections. At least a portion of the system is adjustable to eliminate a gap between the setting sleeve and a top of the settable device mounted on the inner mandrel.

Abstract: An injection valve including a housing, a fluid channel in the housing, and a check valve disposed in the housing and responsive to fluid pressure in the channel to move the check valve in a direction opposite the direction of fluid flow through the channel. A method for injecting fluid into a volume including pressurizing a fluid to be injected, conveying the pressurized fluid to a space about a check valve between a check valve nose and a stem seal; and moving the check valve in a direction opposite a direction of injection fluid flow. A borehole system including a borehole in a subsurface formation, a string disposed within the borehole, and an injection valve disposed within or as a part of the string.

Abstract: A fluid conduit system includes a trunk line and a manifold header coupled to the trunk line. The manifold header has a first bore in fluid communication with the trunk line and a second bore intersecting the first bore. A first manifold valve is coupled to the manifold header. A second manifold valve is coupled to the first manifold valve. A fracture header is coupled to the second manifold valve. A plurality of connection rods is coupled to the manifold header and to the fracture header. Each connection rod extends through a corresponding hole in the first manifold valve and a corresponding hole in the second manifold valve.

Abstract: An expandable annular seal tool including a cone having an actuation surface, a seal member disposed in the actuation surface, and an annular seal element disposed on the actuation surface. An embodiment of a borehole system including a borehole in a subsurface formation, and a tool disposed in the borehole.

Abstract: An apparatus and method for preventing drill string drag. Rotation encoders are provided for tracking the rotation of an inner and outer member of a dual-member drill string. Based upon the drilling conditions, the readings of the encoder can detect when the inner member is dragging on the outer member. When such a drag condition is detected, a processor can trigger remedial measures, which may include increasing a rotation rate of the inner member, sending a warning signal, stopping operation, or a combination of these.

Abstract: An apparatus and method for trapping particles disposed in a fluid. The apparatus may comprise one or more cavities disposed axially along a length of a tubular housing, one or more connecting components disposed at opposing ends of the housing, and may optionally comprise a check valve system. Alternate embodiments are provided for forming each of the one or more cavities, which may comprise a combination of a cavity frame and cavity surface. The method may comprise flowing a fluid into a first end of a particle trap apparatus at a rate of fluid flow, directing the fluid flow at least partially through one or more cavity sub-assemblies disposed in the particle trap apparatus, collecting the particulate matter in one or more of the cavity sub-assemblies when the rate of fluid flow may slow or become suspended, and clearing collected particles from the one or more cavity sub-assemblies upon restoration of fluid flow in a primary direction of travel.

Abstract: A mechanical jar including a housing, a piston disposed in the housing and responsive to applied fluid pressure to move in a first direction relative to the housing, a biasing arrangement disposed in the housing and configured to bias the piston in a second direction opposite the first direction, and a restraint configured to prevent movement of the piston in the second direction until a threshold force is applied to the restraint by the piston, whereafter the piston suddenly moves in the second direction.

Abstract: A packer includes a tubular mandrel. The packer includes a first end cap, the first end cap coupled to the mandrel. The packer includes a backup mechanism coupled to the first end cap. The packer includes a swellable elastomeric body positioned about the mandrel abutting the first end cap. The swellable elastomeric body is positioned at least partially between the mandrel and the backup mechanism. The swellable elastomeric body is positioned to not cover the entire outer surface of the backup mechanism.

Abstract: A downhole tool operable to connect within a downhole tool string. The downhole tool may include a first sub, a second sub, and a movable joint movably connecting the first sub and the second sub to facilitate relative angular movement between the first sub and the second sub. The downhole tool may be operable to connect together a first portion of the tool string and a second portion of the tool string and facilitate relative angular movement between the first portion of the tool string and the second portion of the tool string when the downhole tool is connected within the tool string.

Abstract: A bell nipple includes a downhole end configured to sealingly couple to an uphole-end of a blow-out preventer. An uphole end of the bell nipple includes a first set of threads along an inner surface of the bell nipple. A thread saver is configured to be received by the uphole end. The thread saver is configured to protect the first set of threads from impact. An extension sub is configured to be received by the uphole end. The extension sub includes a downhole end with a second set of threads configured to engage with the first set of threads. An uphole end of the extension sub includes a third set of threads configured receive a well tool.

Abstract: A drilling rig and methods are provided for using multiple types of drilling when installing geothermal systems. The drilling rig can perform sonic drilling such as percussive sonic drilling and a type of non-sonic drilling. Control switching valves are added to the hydraulics of the drilling rig to selectively provide sufficient flow of hydraulic fluid to motors used in the multiple types of drilling, depending on which type of drilling is currently most efficient for the underground formation being drilled. The water pump and hydraulic motor for such have been designed to handle both types of drilling on a small drilling rig frame, thereby allowing for the drilling to occur in space-constrained environments. A method of recycling water used to remove cuttings during drilling to put back downhole is also provided.

Abstract: A remote locking system for a blowout preventer (BOP) includes a locking mechanism configured to move to adjust the remote locking system between an unlocked configuration in which the remote locking system enables movement of a ram of the BOP and a locked configuration in which the remote locking system blocks movement of the ram of the BOP. The remote locking system also includes a gear assembly coupled to the locking mechanism, a motor coupled to the gear assembly, and an electronic controller configured to provide a control signal to activate the motor to drive the locking mechanism to move via the gear assembly.

Abstract: An assembly and a method of setting a plug in a borehole. The assembly includes a first lock, a second lock axially separated from the first lock. The plug is located between the first lock and the second lock. A bore of the assembly passes through the first lock, the second lock and the plug. A ball is dropped through the bore and activates the first lock and the second lock to allow the plug to rotate into a set configuration in the borehole.

Abstract: A formation tester tool assembly includes a seal member mounted on rigid stabilizer that contacts a borehole wall separately from the seal member, so that seal exposure to a stabilization load that presses the tool against the borehole wall is limited or reduced by contact engagement of the stabilizer with the borehole wall. The stabilizer is provided by a hydraulically actuated probe piston reciprocally movable relative to a tool body on which it is mounted. The seal member is in some embodiments movable relative to the probe piston, for example being configured for hydraulic actuation to sealingly engage the borehole wall while the tool body is stabilized by action of the probe piston.

Abstract: A pressure energised seal for a wellhead, in particular, provides a seal of an annulus between an inner wellhead casing member and an outer wellhead casing member. The wellhead incorporates a clamping arrangement whereby the outer member is arranged to be deflected radially inwardly in order to grip and secure the inner member within the bore of the outer member. Also, a seal for use in such a clamping arrangement. In particular, the seal includes a sealing lip which locates within a groove provided in the outer clamping surface of the inner member. A seal is activated and created as the outer member is clamped inwardly since this causes the outer member to compress the inner member and to reduce the diameter of the inner member. Also, a well and a method of sealing an annulus in a well.

Abstract: A valve-style drilling mud screen system comprising a first body having a first portion, a second portion and a third portion, a first drilling mud inlet at a first end of the first portion of the body, a first drilling mud outlet at a second end of the third portion of the body, a rotating subassembly, wherein the rotating subassembly is disposed within the second portion of the first body, wherein the first portion of the first body is fluidly connected to a first end of the rotating subassembly, and wherein a second end of the rotating subassembly is fluidly connected to the third portion of the first body, a pivot subassembly, wherein the pivot subassembly is attached to the rotating subassembly through the second portion of the first body, and a drilling mud screen, wherein the drilling mud screen is disposed within the rotating subassembly between the first drilling mud inlet and the first drilling mud outlet is disclosed.

Abstract: A backup ring includes a plurality of segments defined by a plurality of slots, wherein each segment is defined by a sequential pair of the plurality of slots, and a resilient matrix material that at least partially fills each slot of the plurality of slots.