Abstract: Aspects of the present disclosure relate generally to plug apparatus and methods, and components thereof, for oil and gas wellbores. In one implementation, a plug for oil and gas wellbores includes a mandrel, and a gauge ring disposed around the mandrel. The plug also includes a guide shoe disposed around the mandrel. The plug also includes a first cone, a second cone, and a seal element between the first cone and the second cone. The seal element includes an edge that faces the second cone. The seal element is movable between a preset position and a set position, and the movement of the seal element between the preset position and the set position folds the edge of the seal element in a direction from a second end of the seal element towards a first end of the seal element and underneath an outer portion of the seal element.

Abstract: A spinner assembly including a jaw assembly having a first portion and a second portion, and a linkage assembly coupled to the first and second portions of the jaw assembly. The linkage assembly comprises a first bar coupled to a pivot point, a second bar coupled to the first bar by a first pin, a third bar coupled to the second bar by a second pin, and a pair of links coupled to the pivot point and the third bar. The linkage assembly is configured to move the first and second portions along a substantially linear plane.

Abstract: An elevator system that supports a tubular member includes an elevator movable between a first elevator position and a second elevator position. A mechanical signal mechanism is coupled to the elevator. A valve is coupled to the mechanical signal mechanism. The mechanical signal mechanism is configured to transmit a mechanical signal by a mechanical control cable to move the valve into a valve position to send a valve signal that the elevator is in the second elevator position.

Abstract: A system configured to predict and optimize operating life of a piece of drilling equipment includes a plurality of operating sensors coupled to a piece of drilling equipment, wherein each of the operating sensors is configured to measure an operating condition of the piece of drilling equipment. A control system in communication with the operating sensors is configured to calculate an operating life of the piece of equipment based on the operating conditions.

Abstract: A wrench assembly comprising an upper clamp assembly, a lower clamp assembly coupled to the upper clamp assembly, 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, and an eccentricity sensing mechanism coupled between the upper clamp assembly and the lower clamp assembly.

Abstract: A sand and gas separation system for use with a rod pump. The system comprises an upper separator configured to separate out gas from wellbore fluids prior to flowing into the rod pump. The system further comprises a lower separator configured to separate out sand from wellbore fluids prior to flowing into the upper separator. The upper and lower separators are coupled together by a mechanical coupling.

Abstract: A wrench assembly having an upper clamp assembly and a lower clamp assembly coupled to the upper clamp assembly, wherein the lower clamp assembly comprises a plurality of grippers each having a grip head configured to grip a tubular. Each grip head has a die plate surrounded by a primary contact plate. The primary contact plate is configured to contact the tubular prior to the die plate.

Abstract: A reciprocating piston of a positive displacement pump has a piston body with a plurality of cooling fins on one or more exterior surfaces of the piston body. A seal coupled to the piston body forms a seal with the walls of a cylinder in the positive displacement pump. A rod moves the piston within the cylinder to cause the displacement of fluid.

Abstract: An overhead crane supported by a derrick, comprising a frame coupled to the derrick and comprising a pair of rail members and a bridge member coupled between the rail members, and a trolley coupled to the frame and comprising a fairlead assembly and a cable guide movable in an X-Y plane within an inner perimeter of the frame.

Abstract: A wrench assembly comprises upper and lower clamp assemblies each having a plurality of grip assemblies, a plurality of torqueing cylinders, and a hydraulic circuit. The hydraulic circuit is in fluid communication with the grip assemblies and the torqueing cylinders and is configured to control a gripping force applied by the grip assemblies relative to a torqueing force applied by the torqueing cylinders. The hydraulic circuit is configured to maintain the gripping force in a proportional relationship with the torqueing force.

Abstract: A frac plug that is energized by a ball member, the frac plug comprising an upper mandrel having a tapered outer surface, a seal member coupled to the upper mandrel, and a lower mandrel coupled to the upper mandrel. A button ring having one or more buttons is disposed about the upper mandrel. The lower mandrel is movable relative to the upper mandrel to move the button ring along the tapered outer surface and force the buttons into gripping contact with a surrounding wellbore. The seal member is movable into sealing contact with the surrounding wellbore by the ball member.

Abstract: A link extension having an integral link connector disposed at one end and an eyelet disposed at an opposite end. The link connector is configured to connect to another link. The link connector has body having an upper portion and a lower portion, and a blocking member pivotably coupled to the upper portion by a pin.

Abstract: A skate drive system for a catwalk having a skate and a clamping assembly. The system includes a primary actuator and a secondary actuator. The primary actuator is configured to apply a drive force to first and second cables to move the skate along a trough of the catwalk. The secondary actuator is configured to apply a tension force to at least one of the first and second cables independent of the primary actuator to actuate the clamping assembly from an unclamped position to a clamped position.

Abstract: A frac plug for use in a wellbore includes an upper mandrel with an axis extending therethrough and a lower mandrel that moves axially along the axis and towards the upper mandrel. The frac plug further includes a sealing element and a grip ring that move radially outward from the axis and into engagement with the wellbore. The grip ring includes a first gripping element positioned at a first rake angle with respect to the axis to prevent upward movement of the grip ring with respect to the wellbore when in gripping engagement with the wellbore, and a second gripping element positioned at a second rake angle with respect to the axis that is different from the first rake angle to prevent downward movement of the grip ring with respect to the wellbore when in gripping engagement with the wellbore.

Abstract: A modular pinion shaft that includes a tubular member having a first end and a second end, a first pinion gear member secured to the first end by a plurality of fasteners, and a second pinion gear member secured to the first end by a plurality of fasteners. Gear teeth of each of the pinion gear members are aligned by one or more indexing members disposed between the tubular member and each pinion gear member.

Abstract: A safety intervention system comprising a control system in communication with one or more pieces of equipment on a rig or wellsite via an equipment sensor coupled to each piece of equipment or one or more rig sensors located on the rig or wellsite, and a personnel sensor coupled to a person configured to provide position information of the person to the control system, wherein the control system is configured to determine the person's position relative to each piece of equipment.

Abstract: A downhole apparatus comprising a body configured to be coupled to a production tubular and an upper opening and a lower opening. First and second flow paths are provided between the upper opening and the lower opening in the body, and a flow diverter is arranged to direct downward flow through the body towards the second flow path and away from the first flow path. A filter device in the second flow path filters or collects solid particles in the second flow path from passing out of the lower opening of the apparatus. The apparatus has particular application to artificial lift hydrocarbon production systems, and may be installed above a downhole pump in a production tubing to prevent solids from settling on the pump during pump shutdown. Embodiments for use with ESPs and PCPs are described.

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: In one embodiment, a skate configured to engage a tubular while moving along a catwalk trough is provided. The skate comprises a frame having a drive system configured to move the tubular along the catwalk trough, a grip device coupled to the frame and configured to grip a pin end of the tubular, and a controller in communication with the drive system that controls movement of the frame based on movement of a box end of the tubular.

Abstract: A tubular handling tool includes a body having a center hole adapted to receive a tubular, a guide plate positioned about a top end and a bottom end of the center hole, and a plurality of rollers coupled to the guide plates. Each of the rollers are rotatable about a rotational axis that is parallel to a longitudinal axis of the center hole.