Abstract: The invention relates to an electrochemical kill switch assembly having a conductive fluid detection circuit configured to activate when sensor electrodes are exposed to fluid at an oil and gas tank battery that contains a predetermined or threshold level of salt ions.

Abstract: The present invention is an apparatus, system and method for use of a mud motor having a bearing assembly, a transmission having torque and thrust transfer couplings with a catch pin interface, a power section, a rotor catch assembly, and a cross over sub-valve.

Abstract: A centralizer for a downhole system, such as but not limited to a casing system. In some embodiments, the centralizer has a tubular body and a plurality of roller ball assemblies circumferentially spaced about the tubular body. Each roller ball assembly includes a plurality of rotatable balls adapted to engage a surface radially offset from the centralizer and rotate relative to the surface in any direction.

Abstract: A collet actuated ball and socket connector for rigidly interconnecting the ends of two pipes is disclosed having a ball coupling member adapted for connection to the end of one of the pipes, and a retaining flange freely disposed about the ball coupling member and engaging the outer surface of the member. A socket coupling member adapted for connection to the end of the other of the two pipes is provided for accepting the ball coupling member and provides a metal sealing ring for mating with the ball members. A collet locking means is mounted about the outer periphery of the socket coupling member and extends generally axially therefrom for permitting insertion of the ball coupling member into mating engagement with the socket coupling member when the collet means is open. An actuating means applies a predetermined axial force to the collet locking means for closing the collet means to engage the retaining flange and lock the ball and socket coupling members together in a sealed, rigid relationship.

Abstract: A plugging apparatus is disclosed for plugging the bore of a pipe at a selected location and withstanding a pressure differential thereacross that may equal or exceed the designed working fluid pressure of the pipe and includes a body adapted for insertion into the pipe bore and for axial movement within the pipe, the body including an upstream pressure head having a selected projected area and a support structure (which can conveniently be pigging discs) attached to and cooperating with the body for supporting the body axially in the pipe during movement in the pipe. A pipe gripping structure is carried by the body, locking engagement with the inside surface of the pipe. A plurality of annular elastomeric sealing members having a selected annular area are circumferentially mounted on the body.

Abstract: A plugging apparatus is disclosed for plugging the bore of a pipe at a selected location and withstanding a pressure differential thereacross that may equal or exceed the designed working fluid pressure of the pipe and includes a body means adapted for insertion into the pipe bore and for axial movement within the pipe, the body means including an upstream pressure head having a selected projected area and support means (which can conveniently be pigging discs) attached to and cooperating with the body means for supporting the body means axially in the pipe during movement in the pipe. A pipe gripping means is carried by the body means, locking engagement with the inside surface of the pipe. A plurality of annular elastomeric sealing members having a selected annular area are circumferentially mounted on the body means.

Abstract: The invention is for a pipeline pigging plug which is adapted to be launched from normal instrumented pig launchers and received in comparable pig traps utilized in connection with pipeline operations. The pigging plug is arranged for pigging along the internal surface of a pipeline by the application of fluid pressure therebehind until it arrives at a selected point in the pipeline where a plug is to be effected. Upon application of pressurized fluid to the apparatus the pig is caused to become set or locked in position within the pipeline and a fluid-tight seal is created with the pipeline by the plug. Thus set, the plug is self-energized, i.e., it will remain set against high differential pressure without continued application of said pressurized fluid. When it is desired to remove the plug it can be deactuated and removed by a tether or by the application of fluid pressure thereto as with a conventional pig.

Abstract: A pipeline coupling adapted for mounting over a pipe to which connection is to be made. It includes an annular seal ring of elastomeric material supported by the coupling and adapted for deformation to a confined sealing position between the coupling and the pipe. Means such as a plurality of circumferentially spaced about and hydraulically actuatable pistons are arranged for applying a compressive force to the seal ring to thereby deform the seal ring to the confined sealing position. Means are provided which are operably associated with the seal ring for automatically accommodating increases and decreases in the volume of the confined seal ring to thereby reduce variations in the confined pressure of the seal ring caused by variations in temperature. One form of such automatic means includes springs arranged to apply substantially uniform counter forces to the aforesaid pistons.

Abstract: A metal sleeve having a substantially cylindrical outer surface and having first and second inner surfaces tapering outwardly longitudinally from at least adjacent the center thereof is formed to provide equal angles with abutting ends of two hollow cylindrical members such as pipe; the center inner surface of the sleeve is formed to contact abutting ends of the two hollow cylindrical members at least adjacent the ends thereof. The sleeve has a high explosive mass placed circumferentially thereon and is formed of a circumferential body having a greater thickness at least adjacent the center of the mass than at its ends such that on detonation maximum explosive impact is exerted inwardly toward said sleeve to weld the abutting ends together.

Abstract: A metal sleeve having a substantially cylindrical outer surface and having first and second inner surfaces tapering outwardly longitudinally from at least adjacent the center thereof is formed to provide equal angles with abutting ends of two hollow cylindrical members such as pipe; the center inner surface of the sleeve is formed to contact abutting ends of the two hollow cylindrical members at least adjacent the ends thereof. The sleeve has a high explosive mass placed circumferentially thereon and is formed of a circumferential body having a greater thickness at least adjacent the center of the mass than at its ends such that on detonation maximum explosive impact is exerted inwardly toward said sleeve to weld the abutting ends together.