Abstract: A pipe grabber is readily installed onto a pipe handler used to elevate large and heavy sections of pipe to and from a drilling platform. The pipe grabber has a pair of upper link arms pivotal about an upper cylinder pin, a pair of lower link arms pivotal about a lower cylinder pin, a pair of link pins coupling individual ones of the pair of upper link arms to individual ones of the pair of lower link arms, and a hydraulic cylinder affixed between the upper and lower cylinder pins. The pipe grabber captures a pipe within the pipe supporting trough when the cylinder is extended, and the upper link arms are configured to retract within a pipe grabber housing beneath the pipe supporting trough when the cylinder is retracted. A pair of hooks protrude from a housing side wall to suspend the pipe grabber from a pipe handler.

Abstract: Aspects of the disclosure relate to locking assembly apparatus and methods for fluid ends, and associated components thereof. In one implementation, a locking assembly for fluid ends includes a first actuator and a second actuator disposed at least partially below the first actuator. The second actuator includes one or more coupling surfaces disposed in coupling engagement with one or more coupling surfaces of the first actuator. The locking assembly also includes a plurality of wedges disposed about the second actuator and movable between an unlocked position and a locked position.

Abstract: A compressor includes: a casing with an inner wall defining a compression chamber, an inlet leading into the compression chamber, and an outlet leading out of the compression chamber; a rotor rotatably coupled to the casing for rotation relative to the casing; and a gate coupled to the casing for movement relative to the casing. The gate may be pivotally, or translationally coupled to the casing. A hydrostatic bearing may be disposed between the gate and casing. A plurality of compressors may be mechanically linked together such that their compression cycles are out of phase.

Abstract: Aspects of the present disclosure relate to retainer nut locking apparatus and methods for fluid ends, and associated components thereof. In one implementation, a method of operating a fluid end includes installing a retainer nut assembly on a fluid end body by turning a retainer nut in an installation direction and into a bore formed in the fluid end body. The retainer nut has a first surface that faces away from the fluid end body and a second surface that faces that fluid end body. The method also includes rotating a locking tab in a locking direction and into contact with an inner surface of the fluid end body. The locking direction is opposite of the installation direction. The locking tab is disposed inside the bore and adjacent to the second surface of the retainer nut.

Abstract: A device for extending the useable life of a split bowl by reducing wear of the thru bore of the split bowl during drilling operations. A replaceable wear bushing with a wear indicator is inserted in the thru bore of the two halves of the split bowl. The wear indicator may be a groove formed in an inner diameter of the wear bushing. The wear bushing may be inserted in a bushing groove formed in an inner diameter of the thru bore of the two halves of the split bowl. A retainer plate may be used to retain the wear bushing in the bushing groove.

Abstract: An apparatus and methods are provided for finless heat exchanger cores. A heat exchanger core includes an inlet header and an outlet header. The heat exchanger core also includes one or more curved channel frames disposed at least partially between the inlet header and the outlet header. The one or more curved channel frames have a first end and a second end, and one or more fluid passageways that direct flow of a first fluid in a first direction therethrough from the first end to the second end. In some embodiments, at least one of the one or more curved channel frames includes a rounded leading edge and a tapered trailing edge.

Abstract: Aspects of the present disclosure relate to methods of coating a coiled tubing string, methods of conducting tubing operations using a coated tubing string, and associated apparatus thereof. In one implementation, a method of conducting a coiled tubing operation, includes forming a tubing string. The tubing string has a central annulus, an inner surface, and an outer surface, and the tubing string is formed from a metallic material. The method also includes coiling the tubing string onto a spool, and moving a coating into the central annulus. The method also includes curing the coating onto the inner surface of the tubing string to form a layer of the coating on the inner surface of the tubing string.

Abstract: A torque tool for use subsea with a remotely operated vehicle (ROV) includes a tool housing, a socket drive configured to rotate within the tool housing, and a drive mechanism configured to provide torque to rotate the socket drive within the tool housing. The drive mechanism includes a first torque electric drive motor configured to provide a first torque to the socket drive, and a second torque electric drive motor configured to provide a second torque to the socket drive different from the first torque. The first torque electric drive motor and the second torque electric drive motor are configured to together provide a third torque that is higher than the first torque and the second torque.

Abstract: Aspects of the present disclosure relate to apparatus and methods for regulating flow from a geological formation, and associated components thereof. In one implementation, an apparatus for regulating a multi-phase fluid stream flowing from a subterranean geological formation includes a conduit. The conduit includes an outer wall, a primary flow path for a fluid stream, and a first restriction having a throat portion. A first return path includes a return channel, and the return channel is fluidly connected to the primary flow path through a return inlet and a return outlet. The apparatus includes a gas siphon port formed in the outer wall of the conduit, and a gas siphon path extending from the conduit. The gas siphon path is fluidly connected to the gas siphon port.

Abstract: A torque tool to apply torque to a subsea component with a remotely operated vehicle (ROV) includes a housing, a socket drive to rotate within the housing, and a latch mechanism. The latch mechanism includes a latch to move with respect to the housing between an engaged position to engage the subsea component and a disengaged position to disengage the subsea component. The latch mechanism further includes a biasing mechanism to bias the latch from the engaged position towards the disengaged position, and/or an electric motor to move the latch from the disengaged position towards the engaged position.

Abstract: Aspects of the present disclosure relate to packing nut locking apparatus and methods for fluid ends, and associated components thereof. In one implementation a fluid end apparatus includes a fluid end body having an outer surface, and one or more stay rods disposed at least partially externally to the outer surface of the fluid end body. The fluid end also includes one or more packing nuts, and a lock assembly. The lock assembly includes a first block in contact with the one or more stay rods, and a second block in contact with the one or more packing nuts.

Abstract: A desalter/dehydrator system that comprises a pressure vessel, and first and second distribution headers disposed within the pressure vessel. The first distribution header is configured to inject an oil/water emulsion at a location within an electric field generated within the pressure vessel. The second distribution header is configured to inject the oil/water emulsion at a location below an electric field generated within the pressure vessel.

Abstract: An elevator for moving a tubular having a tubular body and a joint section comprises an elevator body, a securing apparatus having a first blocking apparatus and a second blocking apparatus biased in a blocking position where a throat of the elevator is blocked, and an actuation apparatus coupled to the first blocking apparatus and the second blocking apparatus and adapted to manually move both the first blocking apparatus and the second blocking apparatus from the blocking position to a non-blocking position.

Abstract: A mixing assembly comprises a tubular member and a spherical body disposed within a portion of the tubular member. The spherical body has a central volume, and a wall defined by an outside diameter and an inside diameter. The spherical body includes an inlet side and an outlet side, and a plurality of channels formed in each of inlet side and outlet side. The channels are oriented toward a center of the central volume.

Abstract: A load limiting device that limits and/or provides an indication when an amount of torque applied to a threaded tubular connection by a tong exceeds a predetermined amount.

Abstract: A spinner tool includes a plurality of rollers configured to rotate a tubular and a linkage assembly configured to move the rollers into and out of contact with the tubular. The tool further includes a carriage assembly configured to support the linkage assembly. The carriage assembly has a frame, a pair of carriage rollers positioned on opposite sides of the frame, and a pair of spring cylinders positioned on opposite sides of each carriage roller. The spring cylinders are coupled at one end to the carriage roller and at an opposite end to the frame to force the carriage assembly into a centered position.

Abstract: A setting tool for setting a ball actuated device includes a ball carrying assembly. The ball carrying assembly includes a ball, an outer housing including an axis extending therethrough, and an inner housing positionable within the outer housing and configured to move axially along the axis with respect to the outer housing. The inner housing includes a recess formed therein to receive the ball therein, and the inner housing is releasably coupled to the ball actuated device.

Abstract: A wrench assembly comprising an upper clamp assembly, a lower clamp assembly coupled to the upper clamp assembly, and an alignment device disposed between the upper and lower clamp assemblies to allow the upper clamp assembly to move laterally relative to the lower clamp assembly when rotated relative to the lower clamp assembly.