A torque transfer system includes a drive shaft threaded into a housing. The drive shaft includes shaft splines. The housing includes housing splines. A sleeve includes inner splines and outer splines. The inner splines are configured to interlock with the shaft splines and the outer splines are configured to interlock with the housing splines.

A stop collar for mounting to a downhole tubular includes: a cylindrical housing having a threaded inner surface and a tapered inner surface; a compressible slip ring having teeth formed in an inner surface thereof and a pair of tapered outer surfaces; a solid cam ring having a tapered inner surface; and a cylindrical bolt having a threaded outer surface. A natural outer diameter of each ring is greater than a minor diameter of the threaded surfaces. Screwing the threaded surfaces of the housing and the bolt is operable to drive the tapered surfaces together, thereby compressing the slip ring such that the teeth engage a periphery of the tubular.

A stop collar for mounting to a downhole tubular includes: a cylindrical housing having a threaded inner surface and a tapered inner surface; a compressible slip ring having teeth formed in an inner surface thereof and a pair of tapered outer surfaces; a solid cam ring having a tapered inner surface; and a cylindrical bolt having a threaded outer surface. A natural outer diameter of each ring is greater than a minor diameter of the threaded surfaces. Screwing the threaded surfaces of the housing and the bolt is operable to drive the tapered surfaces together, thereby compressing the slip ring such that the teeth engage a periphery of the tubular.

An orienting system for precisely aligning downhole tools with respect to each other, such as perforating guns, exploration tools, or other completions tools. The orienting system provides for orienting a first tool with respect to a second tool in a predetermined number of degrees of rotation, and then locking down the combination for use downhole in that configuration.

An orienting system for precisely aligning downhole tools with respect to each other, such as perforating guns, exploration tools, or other completions tools. The orienting system provides for orienting a first tool with respect to a second tool in a predetermined number of degrees of rotation, and then locking down the combination for use downhole in that configuration.

A junctional hemorrhage control device includes a strap and a base operably connected to the strap. A strap carriage is operably connected to, and linearly translatable relative to, the base. A screw assembly is rotatably attached to the base. The screw assembly moves the strap carriage away from the base when the screw assembly is operated in one direction and towards the base when the screw assembly is operated in an opposite direction. A removable pressure plate is attached to the base to apply occlusion pressure to a hemorrhage location.

A junctional hemorrhage control device includes a strap and a base operably connected to the strap. A strap carriage is operably connected to, and linearly translatable relative to, the base. A screw assembly is rotatably attached to the base. The screw assembly moves the strap carriage away from the base when the screw assembly is operated in one direction and towards the base when the screw assembly is operated in an opposite direction. A removable pressure plate is attached to the base to apply occlusion pressure to a hemorrhage location.

A connection assembly for a well comprises first and second tubular, one of which is adapted to connect to the well, the first tubular having a bore adapted to receive the second tubular. The first and second tubulars lock together, and have first and second seals compressed between an outer surface of the second tubular and an inner surface of the first tubular to create a fluid chamber. The second seal is axially and radially spaced from the first seal. A hydraulic pressure system is adapted to drive hydraulic fluid into the fluid chamber to urge the second tubular out of the first tubular when the first and second seals are compressed between the first and second tubulars. A method of making connections is also disclosed.

A connection assembly for a well comprises first and second tubular, one of which is adapted to connect to the well, the first tubular having a bore adapted to receive the second tubular. The first and second tubulars lock together, and have first and second seals compressed between an outer surface of the second tubular and an inner surface of the first tubular to create a fluid chamber. The second seal is axially and radially spaced from the first seal. A hydraulic pressure system is adapted to drive hydraulic fluid into the fluid chamber to urge the second tubular out of the first tubular when the first and second seals are compressed between the first and second tubulars. A method of making connections is also disclosed.

The present application relates to a locking apparatus for locking axial ends of first and second drilling rig components in a connected state, the connected state established by sufficiently rotating the first drilling rig component relative to the second drilling rig component in a first direction. The apparatus includes a first locking means that enables the first and second drilling rig components to be locked in their connected state by causing, during rotation of the first drilling rig component in the first direction, the locking apparatus to engage with the first drilling rig component in a configuration that prevents the first drilling rig component from rotating in a direction opposite to the first direction. The apparatus further includes a second locking means that enables the locking apparatus to be prevented from rotation relative to the second drilling rig component, including during rotation of the first drilling rig component in the first direction, the locking apparatus thereby preventing relative rotation between the first and second drilling rig components.