G&h Diversified Manufacturing LP

Dril-quip, Inc.

Steven M Zakharia

Benjamin Vascal Knight

Joe Noel Wells

Curtis Wyatt Payne

James Edward Kash

Charles Levine

Timmothy Alain Lee

Frank David Kalb

Ryan Matthew Ward

Brian Auer

Ryan Thomas Ward

Joshua Magill

Brian Marshall Auer

Jacob S Warneke

Anthony Nguyen

A method for producing a tandem sub for a perforating gun system includes positioning an electrically conductive signal bar in a central passage of a tubular housing of the tandem sub, and injecting a mold material into an annulus formed between an outer surface of the signal bar and an inner surface of the tubular housing that sealably adheres to both the signal bar and the tubular housing.

Reusable tandem subs including a signal bar for a perforating gun system

A system for connecting a perforating gun to at least one other component in a perforating tool string includes a perforating gun that includes a gun housing and a charge carrier received within the gun housing wherein the charge carrier includes a first electrical connector, a tool connected end-to-end with the perforating gun where the tool includes an outer sleeve and a second electrical connector, a solid signal puck arranged with the perforating gun and the tool where the puck forms a pressure resistant barrier between the gun and the tool and wherein the solid signal puck includes a first endface oriented and a second endface and an outer periphery between the endfaces, and wherein the largest outer diameter of the outer periphery is at least 40% of the length between the first endface and the second endface of the puck.

Solid signal puck for wellbore perforating gun

A setting tool for actuating a downhole plug in a wellbore includes a housing, a piston positioned at least partially within the housing wherein the piston defines an internal firing chamber that is in fluid communication with an exhaust port, an expansion chamber positioned between an outer surface of the piston and an inner surface of the housing wherein the exhaust port is configured to convey combustion products along a combustion flowpath extending from the firing chamber and into the expansion chamber, and an exhaust diffuser distinct from the piston and the housing and including an exhaust passage and at least one baffle face, the baffle face configured to redirect the flow of combustion products along the combustion flowpath and channel the flow of combustion products into the exhaust passage.

Downhole setting tool with exhaust diffuser

A dissolvable barrier assembly includes a holder configured to couple to the casing string in a generally transverse orientation and defining a central aperture, a barrier positioned in the central aperture of the holder and configured to prevent the communication of fluid across the barrier whereby an uphole chamber within the casing string extending uphole from the barrier and containing an uphole fluid is hydraulically isolated from a downhole chamber within the casing string extending downhole from the barrier, and wherein the barrier includes an outer surface including an uphole surface defining an uphole end and a downhole surface defining a downhole end, wherein the uphole surface is configured to corrode when in contact with the uphole fluid at a first corrosion rate and also wherein the downhole surface is configured to corrode when in contact with the uphole fluid at a second corrosion rate.

Systems and methods for providing buoyancy to a tubular string positioned in a wellbore

A tandem sub for a perforating gun system includes a tubular housing including a longitudinal first end, a longitudinal second end opposite the first end, a central passage defined by an inner surface, an electrical pass-thru assembly including an electrically conductive signal bar having a longitudinal first end defining a first electrical contact of the tandem sub, and a longitudinal second end opposite the first end and defining a second electrical contact of the tandem sub that is longitudinally opposite and electrically connected to the first electrical contact, wherein the signal bar is rigid along the entire longitudinal length thereof extending from the first end to the second end, and wherein the signal bar is coupled to the housing and a central axis of the central passage of the housing intersects the signal bar.

A plugging assembly includes a plug and a setting tool attached directly to the plug, wherein the plug includes an elongate core with an uphole end and a downhole end opposite the uphole end, and a sealing element disposed fully around the core to seal against the casing. The plug additionally includes an anchoring system for anchoring the plug to the casing in a fixed position, a compression fitting disposed around the core at or near the uphole end of the core, and a nose at the downhole end of the core. The setting tool includes an elongate housing extending between an uphole end and a downhole end opposite the uphole end, an open passageway extending from the uphole end to the downhole end of the housing, and the downhole end of the housing is aligned to directly engage the compression fitting of the plug.

Plugging assemblies for plugging cased wellbores

A liner hanger having one: or more enhanced Socking assemblies is provided. The liner hanger includes a liner hanger body, lower slips, upper slips, a packer cone, and a seal that seals an annulus between the liner hanger and an outer casing, The one or more enhanced locking assemblies may include: a packer cone locking assembly that prevents all components of the liner hanger from actuating until it is unlocked; a slips locking assembly that prevents the lower slips from being actuated until it is unlocked; guide rails that prevent. the lower slips and/or the upper slips from being wedged in a radially outward direction during run in; and a floating cone locking assembly that releases the packer cone from being coupled to a spacer of the liner hanger when it is unlocked.

Liner hanger with enhanced locking assembly

A downhole plug for plugging a tubular member. The downhole plug may include a packer and a slip assembly including a plurality of slip segments circumferentially spaced about a central axis of the slip assembly, each slip segment having a body comprising a first end, a second end longitudinally opposite the first end, an outward face with at least one engagement member for coupling to the tubular member, and sides each facing an adjacent slip segment of the plurality of slip segments. The plurality of slip segments may include a first set of slip segments and a second set of slip segments wherein each of the first set of slip segments is positioned directly between a pair of the second set of slip segments. Each of the second set of slip segments may include a pair of arcuately extending anti-extrusion members.

Anti-extrusion slip assemblies for a downhole sealing device

A setting tool for actuating a downhole plug in a wellbore includes a housing including a central passage, a piston slidably disposed in the housing and including a central passage, and wherein the piston includes a first position in the housing and a second position the housing spaced from the first position in a first axial direction, and an atmospheric chamber filled with compressible fluid formed radially between the piston and the housing, and wherein the atmospheric chamber is sealed from an environment surrounding the setting tool when the piston is in the first position, wherein, in response to a pressurization of the central passage of the piston, the setting tool is configured to displace the piston from the first position to the second position and compress the compressible fluid within the atmospheric chamber.

Systems and methods for setting a downhole plug using a self damping setting tool

A self-locking packer carrier includes an integrated locking mechanism that locks the packer carrier directly to the packer cone after the sealing element is fully set. The integrated locking mechanism may include one or more compression splines extending from a packer carrier base in a radially outward direction to engage a casing after the attached sealing element has created a fluid tight seal, and a tooth profile formed along an inner diameter of the packer carrier base to lock the packer carrier to the packer cone in response to a compression force transferred to the base via the splines. The integrated locking mechanism is designed to eliminate backlash on the liner hanger system, increase vibrational resistance, accommodate liner stretch, withstand pump-out loads, and tolerate liner movement while maintaining sealing integrity.

Self-locking packer carrier

An improved c-ring slip retention system and method for extraction of the c-ring slip are provided. The c-ring slip retention system may use a lip portion of a retention sleeve to hold the c-ring slip against a liner hanger body. The c-ring slip may have a multi-load shoulder profile that interfaces directly with a complementary profile formed in the liner hanger body. The disclosed retention system prevents the c-ring slip from being prematurely extracted from a liner hanger body while the liner hanger is lowered through a borehole. The c-ring slip retention system may include a first retention mechanism and a second retention mechanism used to secure the retention sleeve to the liner hanger body. A single actuation of at least one setting segment in an axial direction may disengage both retention mechanisms, move the retention sleeve axially relative to the liner hanger body, and extract the c-ring slip.

Push to release c-ring slip retention system

An improved c-ring slip retention system and method for extraction of the c-ring slip are provided. The c-ring slip retention system may use an axially movable support sleeve with a support ring for securing the c-ring slip against a retention lip of the liner hanger body. The disclosed retention system prevents the c-ring slip from being prematurely extracted from a liner hanger body while the liner hanger is lowered through a borehole. The c-ring slip retention system may also include anti-rotation features that prevent the c-ring slip from rotating relative to the liner hanger body. A single actuation of the support sleeve in an axial direction may unlock the c-ring slip from the retention lip, disengage the anti-rotation features, compress the c-ring slip out of the keyed profile, and extract the c-ring slip from the liner hanger body.

Growing community of inventors

Houston, TX, United States of America

Steven M Zakharia