Abstract: A downhole pump is used for a reciprocating pump system having a rod string disposed in a tubing string. A barrel of the pump is disposed, and a plunger of the pump coupled to the rod string is movably disposed in the barrel. The plunger has an external surface disposed at an annular gap relative to the barrel's internal surface. The external surface has circumferential grooves defined thereabout that hold wipers. An inner ring of the wipers composed of a swellable material is engaged in the one or more circumferential grooves, while an outer ring composed of a second material is disposed about the inner ring. The swellable material of the inner ring energizes the outer ring in slideable engagement with the internal surface of the barrel.

Abstract: A cased bore straddle packer has an upper unload sub sleeve with fluid ports that are selectively aligned with corresponding ports in an upper unload sub mandrel component and a lower unload sub sleeve with fluid ports that are selectively aligned with corresponding ports in a lower unload sub mandrel component to permit fluid to be selectively dumped from the straddle packer. Control of the alignment of the respective ports is effected by manipulating an auto-J ratchet machined into a multicomponent mandrel of the straddle packer. The auto-J ratchet is controlled from the surface using completion string pull and push manipulations.

Abstract: A hydrostatically actuable downhole piston apparatus for use in a wellbore, comprising glide spacers disposed in the primary chamber, capable of mitigating the deflection of the piston and other hydrostatic components at elevated wellbore hydrostatic pressures. The disclosed apparatus is suited for, among other applications, the hydrostatic setting of a downhole tool, such as a packer, in a wellbore. A method and system for hydrostatically setting a downhole tool using glide spacers disposed in the primary chamber of the downhole tool.

Abstract: System and methods for completing a subterranean well include a casing string, the casing string being an elongated tubular member formed of successive casing joints and having a central axis. A plurality of ribs are secured to the casing string, the ribs being elongated members spaced circumferentially around an outer diameter of the casing string. The ribs extend axially from a downhole end of a casing joint to an uphole end of the casing joint.

Abstract: The downhole tractor further comprises a hydraulic power pack coupled to the hydraulic supply line, at least one hydraulic component and at least one further hydraulic component. The hydraulic components are coupled to the hydraulic supply line in parallel and configured for being actuated by the hydraulic supply line. The hydraulic supply line comprises a controllable valve placed at a location in between the at least one hydraulic component and the at least one further hydraulic component such that a first part of the hydraulic supply line is coupled to a second part of the hydraulic supply line via the controllable valve. The downhole tractor provides for much better control and facilitates tuning of the performance of the tractor to the actual needs.

Abstract: A system is disclosed as including an enclosed space within a seal for sealing an area between a hanger and a housing of a wellhead. The enclosed space traverses a first section of the seal, a middle section of the seal, and an opening at a second section of the seal. A port is provided as accessible from the housing. A tool positions the seal within the hanger and the housing so that the port is able to access the enclosed space from the housing to the hanger. A pressure applicator applies fluid into the port at a pressure, which is monitored to determine integrity of the seal. In a monitoring mode, a pressure is monitored at the port. A change in the pressure from an ambient pressure at the port may indicate an on-going issue with the seal. Methods applied to the system are also disclosed.

Abstract: A firing head assembly is described. The firing head assembly includes a tubular housing, upper piston and lower pistons, and a compressible member arranged within a lumen of the tubular housing and positioned between the upper and lower pistons. According to an aspect, the assembly includes a safety assembly that includes a sleeve having a zigzag shaped slot therein. The safety assembly may include a key that radially extends from a surface of one of the pistons, through the zigzag shaped slot. The distance between the upper and lower pistons may be adjusted by adjusting a pressure inside the tubular housing and a second pressure outside the tubular housing. The upper and lower pistons may function to operatively adjust the arrangement of the key within the zigzag shaped slot to activate the firing head assembly to either trigger an explosive reaction or to not trigger the explosive reaction.

Abstract: A downhole sand control completion system includes a completion string extendable within a wellbore and including one or more sand control screen assemblies arranged about a base pipe, each sand control screen assembly including one or more sand screens positioned about the base pipe. A shunt system is positioned about an exterior of the base pipe to receive and redirect a gravel slurry flowing in an annulus defined between the completion string and a wellbore wall. A return tube is positioned about the exterior of the base pipe and extends longitudinally along a portion of the completion string. The return tube defines a plurality of openings to receive a portion of a fluid in the annulus into the return tube to be conveyed into an interior of the base pipe via the return tube.

Abstract: Systems, devices, and methods for detecting and addressing a kick on a drilling rig are provided. A controller on the drilling rig may receive measurements from one or more sensor systems on the drilling rig and determine a severity index value corresponding to the likelihood of a kick. If the severity index level is determined to reach a specified threshold, an operator may be prompted to perform a flow check and/or activate a blow-out preventer.

Abstract: A rubber cylinder includes rigid seal rings on both ends, a packer, and a bridge. The rubber cylinder comprises a wire seal ring, a filament seal ring, and rigid seal rings. The wire seal ring abuts the filament seal ring and is disposed below the filament seal ring. The wire seal ring comprises a plurality of wires intersecting each other and a colloid bonding all the wires together. The filament seal ring comprises a plurality of high-temperature high-pressure resistant filaments intersecting each other and a colloid bonding all the filaments together. When the wire seal ring is disposed below the filament seal ring, friction between the wire seal ring and a central tube and/or a casing reduces an axial pressure transferred to the filament seal ring. Such reduction further reduces the occurrence of an extruded shoulder.

Abstract: A casing patch system comprising a base tubular with two anchor/seals coupled to the base tubular and an expansion tool comprising two expansion devices positioned such that upon expansion of the first anchor/seal, the second expansion device engages the second anchor/seal, which allows reduction of the expansion forces due to sequential expansion and reduces the length of the displacement necessary for setting the casing patch, eliminating the need for resetting the thruster, which allows deployment and setting of the casing patch on a wireline. In another embodiment, the expansion device comprises two swages coupled to a shaft at a distance between them approximately equal to the length of the anchor/seal.

Abstract: A downhole tool has a setting cone including a body having an outer surface having a first end, a second end. At least a portion of the body includes a taper at the second end. A passage extends through the body. The passage includes a first portion having a first diameter and a second portion having a second diameter that is less than the first diameter. An anchor is arranged at the second end of the setting cone. The anchor includes a central passage that aligns with the passage through the setting cone. A mandrel extends through the passage of the setting cone and the central passage of the anchor. The mandrel includes a first end portion, a second end portion and an intermediate section. A conduit extends from the first end portion toward the second end portion. A portion of the conduit defines an actuation chamber.

Abstract: A technique facilitates a well operation employing at least one dehydration tube. The at least one dehydration tube is located along an exterior of a plurality of screen assemblies deployed in a wellbore and is fluidly coupled to a base pipe of at least one of the screen assemblies. The fluid coupling provides fluid access to the base pipe through a base pipe opening. Fluid flow along the at least one dehydration tube is controlled with a flow control mechanism. Additionally, an inflow of fluid from an exterior to an interior of select screen assemblies is separately controlled with an inflow control device associated with each select screen assembly.

Abstract: The present disclosure relates to a cementing plug comprising a first plug body (bottom plug), a second plug body (top plug), and a plurality of cleaning portions. The first plug body comprises: a first body provided therein with a chamber opening towards a lower end thereof, and an upper end of the first body being provided with a pressure portion; and an anti-rotation portion provided on an inner wall of the first body, and capable of being connected to slurry entering the chamber to limit a rotation of the first plug body. The second plug body comprises a second body. The plurality of cleaning portions is provided on outer sidewalls of the first body and the second body along a length direction thereof, for scraping off residuals (mud cake) on an inner wall of a casing.

Abstract: A travel joint that provides fluid communication between at least two hydraulic control lines through a cavity in the travel joint. In certain embodiments, the travel joint includes a sleeve assembly, a piston assembly, and annular cavity between the piston assembly and the sleeve assembly. The sleeve assembly includes a sleeve passage configured to hydraulically couple to a hydraulic line. The piston assembly is telescopically moveable within the sleeve assembly and includes a piston passage configured to hydraulically couple to a second hydraulic line.

Abstract: An auxiliary feeding device for a flexible pipe of a radial horizontal well, comprising an oil pipe, a steering gear connected to the oil pipe at a lower opening, and two impellers. Each of the impellers comprises an impeller shaft, a barrel body and at least three blades fixed outside the barrel body and provided at a top thereof with a notch, where the two impeller shafts are parallel to each other. The two impellers are parallel and are synchronously rotated, and the notches on two sides of the inlet are in one-to-one correspondence relation to form a holding passage that can clamp the flexible pipe.

Abstract: A vehicular auger implement. The implement is configured to be operated by a single operator and comprises an auger having a bit. The implement includes a four bar linkage comprising a first bar, a second bar, a third bar, and a fourth bar. The first bar is coupled to each of the second bar and a hydraulically actuated arm. The auger is operably coupled to the fourth bar. The four bar linkage is configured to convert a rotational motion of the second bar to a vertical motion of the auger. A vehicle to which the auger implement is coupled is configured to remain stationary while a hole is bored using the vertical motion of the auger.

Abstract: A coiled tubing injector apparatus for inserting and/or removing coiled tubing from a well head comprising a first injector column and a second injector column forming a central pathway within a frame. The first and second injector columns each comprise an inner and outer band, the outer band containing a plurality of rolling elements for engaging the coiled tubing and the inner band creating drive force to energize the outer band. The inner band further comprises a wear plate designed to sustain the majority of wear for less costly maintenance and repair of injection heads.

Abstract: A tubular includes an outer surface, an inner surface defining a passage, and a plurality of openings extending through the outer surface and the inner surface. A sleeve is positioned within the passage. The sleeve includes an outer surface portion having at least one recess. At least one release member extends from the inner surface into the at least one recess. The at least one release member maintains the sleeve in a first configuration relative to the plurality of openings. At least one of the inner surface and the outer surface portion includes a self-holding connection that establishes one of a reduced diameter portion of the passage and an increased diameter portion of the sleeve. The self-holding connection is configured to maintain the sleeve in a second configuration axially shifted relative to the first configuration.

Abstract: A composite sintered body cutting tool, in which tungsten is reduced, is made of a TiCN-based cermet and WC-based cemented carbide. The cutting tool has an angle of less than 90 degrees formed by a rake face and a flank face. The rake face including a cutting edge contains WC-based cemented carbide including 4% to 17% by mass of iron group metal components with a remainder being WC. The thickness of the carbide is 0.05 to 0.3 times the thickness of the composite sintered body. The TiCN-based cermet which is a base body of the cutting tool includes 4% to 25% of the iron group metal components, less than 15% of W, 2% to 15% of Mo, 2% to 10% of Nb, and 0.2% to 2% of Cr. The cermet may contain iron group metal Co and Ni, where, Co/Co+Ni is 0.5 to 0.8.