Abstract: A frangible slip ring is disposable on a mandrel of a plug disposable in a casing of an oil or gas well. The slip ring is radially expandable during setting to fragment and radially expand to engage the casing. A plurality of external teeth are formed in an exterior of the slip ring, and spaced-apart axially along the slip ring. The plurality of teeth is radially segmented around a circumference of the slip ring by a plurality of axial slots spaced-apart around the circumference of the slip ring and extending into the exterior of the slip ring. An interior of the slip ring is axially segmented along a longitudinal axis by a plurality of annular grooves spaced-apart along the longitudinal axis of the slip ring and extending into the interior of the slip ring.

Abstract: A downhole tool or plug includes a mandrel with an element, a slip ring, and a cone pressable between an upper push sleeve assembly and a lower anvil. The upper push sleeve assembly including a lock ring having one or more interior teeth on an interior of the lock ring. A mandrel sleeve is at least partially received within a recess in the mandrel and affixed with respect to the mandrel, and has one or more exterior teeth on an exterior of the mandrel sleeve.

Abstract: A plug for a pipe in an oil or gas well includes a packer, a slip ring and a cone disposable on a mandrel and pressed between an upper push sleeve and a lower anvil on the mandrel. The plug can be field configurable with a frac plug kit, a bridge plug kit and a soluble insert plug kit. A pair of concentric locking rings is disposed between the push sleeve and the mandrel with an outer annular cone with an outer conical shape tapered upwardly and inwardly.

Abstract: A frame and system for adding buoyancy to a riser used in connection with floating platforms is provided which, in some example embodiments, includes a stem attached to multiple supports which include flanges arranged to take impact and abrasion loads off an internal buoyancy module. An air management system is also provided.

Abstract: A frame and system for adding buoyancy to a riser used in connection with floating platforms is provided which, in some example embodiments, includes a stem attached to multiple supports which include flanges arranged to take impact and abrasion loads off an internal buoyancy module. An air management system is also provided.

Abstract: A frame and system for adding buoyancy to a riser used in connection with floating platforms is provided which, in some example embodiments, includes a stem attached to multiple supports which include flanges arranged to take impact and abrasion loads off an internal buoyancy module. An air management system is also provided.