Abstract: A slow response time tool including a biasing arrangement, a piston in operable communication with the biasing arrangement, a chamber receptive to the piston, a retardation arrangement defining a helical pathway in fluid communication with the chamber.

Abstract: A slow response time tool including a biasing arrangement, a piston in operable communication with the biasing arrangement, a chamber receptive to the piston, a retardation arrangement defining a helical pathway in fluid communication with the chamber.

Abstract: A borehole mill has blades that extend radially while moving along an inclined dovetail as a result of setting down weight on a mandrel. The blades extend axially beyond the end of the mandrel so that setting down weight disables a retainer that has the blades retracted for running in. Axial displacement of the blades along respective dovetails breaks a shear pin on a follower sleeve that is spring biased off a gage ring on the mandrel such that the spring stays compressed as long as set down weight is applied and once the mill is picked up the spring pushes the blades axially along a dovetail to the radially retracted position. The mill resumes its smallest dimension for pulling out of the hole.

Abstract: Systems and methods for communicating information relating to at least one wellbore condition across a surface cement plug in a plugged off wellbore. Induction telemetry or galvanic telemetry are used to transmit electromagnetic signals across the axial length of a surface cement plug.

Abstract: A dual barrier system withstands pressure differentials well above those of the check valves in a float shoe used to allow circulation of a bottom hole assembly on the way to a desired depth. The bottom hole assembly can have screens and an internal wash pipe that pushes a sleeve to hold open a lower flapper for running in. The wash pipe also holds open an upper flapper that has opposed orientation to facilitate circulation when running in. Once on location an annulus packer closes off the producing zones where the screens are located from a lower zone that can have higher pressures. A high pressure packer is set against the shoe track and the wash pipe is retracted through this packer. Retracting the wash pipe allows closure of both flappers. Flow is blocked in opposed directions by the flappers and packer in the shoe track.

Abstract: A borehole mill has blades that extend radially while moving along an inclined dovetail as a result of setting down weight on a mandrel. The blades extend axially beyond the end of the mandrel so that setting down weight disables a retainer that has the blades retracted for running in. Axial displacement of the blades along respective dovetails breaks a shear pin on a follower sleeve that is spring biased off a gage ring on the mandrel such that the spring stays compressed as long as set down weight is applied and once the mill is picked up the spring pushes the blades axially along a dovetail to the radially retracted position. The mill resumes its smallest dimension for pulling out of the hole.

Abstract: A downhole tool that includes a cutter and jacking system and methods of using such a tool to remove a portion of casing or tubing from a wellbore. The tool may include an upper slip and a lower slip configured to selectively engage casing of a wellbore. A cutter and an extendable section may be positioned between the upper and lower slips. The cutter may be used to cut casing into an upper portion and a lower portion and the extendable section may be used to increase a distance between the upper and lower slips that moves the upper portion of the casing and the lower portion of the casing away from each other. The extendable section may be hydraulically actuated to move the upper portion of the casing away from the lower portion of the casing. The cutter may be an abrasive jet configured to cut the casing.

Abstract: Systems and methods for communicating information relating to at least one wellbore condition across a surface cement plug in a plugged off wellbore. Induction telemetry or galvanic telemetry are used to transmit electromagnetic signals across the axial length of a surface cement plug.

Abstract: A dual barrier system is provided to withstand pressure differentials well above those of the check valves in a float shoe used to allow circulation of a bottom hole assembly on the way to a desired depth. The bottom hole assembly can have screens and an internal wash pipe that pushes a sleeve to hold open a lower flapper for running in. The wash pipe also holds open an upper flapper that has opposed orientation to facilitate circulation when running in. Once on location an annulus packer closes off the producing zones where the screens are located from a lower zone that can have higher pressures. A high pressure packer is set against the shoe track and the wash pipe is retracted through this packer. Retracting the wash pipe allows closure of both flappers. Flow is blocked in opposed directions by the flappers and packer in the shoe track.

Abstract: Shear member designs in various formats are presented with additional features for segment retention and subsequent removal after a shearing event and removal of the tool from a subterranean location. In some embodiments a portion of the shear member is retained by threads so that the segment stays in the part and then can be removed at the surface with putting a notch in the segment and removing it with a screwdriver. In another embodiment a retaining pin in an intersecting bore can hold onto a sheared remnant of the shear pin by pushing the remnant laterally in the bore that it is mounted. Another design for a shear ring uses a split design with the right angle portion of the ring that gets sheared appearing in segments so that the ring can be rapidly snapped into a groove at its outer periphery followed by a retaining cap facilitating removal.

Abstract: A downhole tool that includes a cutter and jacking system and methods of using such a tool to remove a portion of casing or tubing from a wellbore. The tool may include an upper slip and a lower slip configured to selectively engage casing of a wellbore. A cutter and an extendable section may be positioned between the upper and lower slips. The cutter may be used to cut casing into an upper portion and a lower portion and the extendable section may be used to increase a distance between the upper and lower slips that moves the upper portion of the casing and the lower portion of the casing away from each other. The extendable section may be hydraulically actuated to move the upper portion of the casing away from the lower portion of the casing. The cutter may be an abrasive jet configured to cut the casing.

Abstract: A one-way flowable anchoring system includes a plurality of same anchors that are sealedly fixedly engagable within a structure and each of the plurality of same anchors has a flow bore longitudinally therethrough with a first seat and a second seat on opposing ends thereof The system also has a plug positionable within the structure between two of the plurality of same anchors positioned longitudinally adjacent one another.

Abstract: Anchoring systems for disposition in wellbores and tubular devices comprise a tubular member defined by two or more radially expandable slip members. The upper ends of the slip members are shaped such that when the slip members are in their respective run-in positions and in their respective set positions, a portion of an upper end of one slip member overlaps a portion of an upper end of another slip member so that the longitudinal space between each slip member that is created when the slip members are in their set position are blocked by the upper end of at least one of the slip members. Thus, in their set position, the upper end of at least one of the slip members provides a back-up to a sealing element that can be disposed adjacent to and in contact with the upper ends of the slip members when in their set positions.

Abstract: An anchoring and sealing device includes at least one slip, a seal and a tubular in operable communication with the at least one slip and the seal. The anchoring and sealing device is configured to cause radial movement of the at least one slip into anchoring engagement with a structure and to cause radial movement of the seal into sealing engagement with the structure in response to longitudinal compression of the anchoring and sealing device. The anchoring and sealing device is also configured to maintain anchoring and sealing engagement with the structure without additional components remaining in contact therewith.

Abstract: Arrangements and packer devices having anti-extrusion backup rings that are expanded radially outwardly by a setting mechanism that lies proximate the elastomeric packer element that is being protected against extrusion. The setting mechanism can be a slip assembly that has a radially expandable slip element.

Abstract: Downhole tool packing element systems comprise a sealing element having a support system. The support system can include one or more of a first spacer ring, a second spacer ring, a third spacer ring, a mesh ring, and one or more petal rings. One or more of these components can be disposed at one or both of the upper end and/or lower end of the sealing element. When compressed, the sealing element is moved radially outward to engage an inner wall surface of a wellbore due to compressive forces of the one or more spacer ring(s), mesh ring, and/or petal ring(s). The lower end of one or more of the mesh ring(s) and/or petal ring(s) rotate outwardly toward the casing and engage the casing to facilitate creation of the seal.

Abstract: Anchoring systems for disposition in wellbores and tubular devices comprise a tubular member defined by two or more radially expandable slip members. The upper ends of the slip members are shaped such that when the slip members are in their respective run-in positions and in their respective set positions, a portion of an upper end of one slip member overlaps a portion of an upper end of another slip member so that the longitudinal space between each slip member that is created when the slip members are in their set position are blocked by the upper end of at least one of the slip members. Thus, in their set position, the upper end of at least one of the slip members provides a back-up to a sealing element that can be disposed adjacent to and in contact with the upper ends of the slip members when in their set positions.

Abstract: A retention structure for retaining a heat generating component to a heat dissipating substrate. The heat generating component has a heat transfer surface and an opposing biasing surface, and the heat dissipating substrate has opposing first and second sides. The retention structure has a generally U-shaped retention body including an elongated base having opposing ends, and legs extending from the ends of the base. Each of the legs includes a positioning slot. The substrate includes a pair of passages for receiving the legs therethrough, and a pin structure is positioned on the substrate and extends through the positioning slots in the legs to locate the base of the retention body adjacent to the biasing surface and effect a biasing of the heat transfer surface toward the substrate.

Abstract: An anchoring and sealing device includes at least one slip, a seal and a tubular in operable communication with the at least one slip and the seal. The anchoring and sealing device is configured to cause radial movement of the at least one slip into anchoring engagement with a structure and to cause radial movement of the seal into sealing engagement with the structure in response to longitudinal compression of the anchoring and sealing device. The anchoring and sealing device is also configured to maintain anchoring and sealing engagement with the structure without additional components remaining in contact therewith.

Abstract: A retention structure for retaining a heat generating component to a heat dissipating substrate. The heat generating component has a heat transfer surface and an opposing biasing surface, and the heat dissipating substrate has opposing first and second sides. The retention structure has a generally U-shaped retention body including an elongated base having opposing ends, and legs extending from the ends of the base. Each of the legs includes a positioning slot. The substrate includes a pair of passages for receiving the legs therethrough, and a pin structure is positioned on the substrate and extends through the positioning slots in the legs to locate the base of the retention body adjacent to the biasing surface and effect a biasing of the heat transfer surface toward the substrate.