A low cost, disposable, molded reinforcing insert which has a metal ring or a circular arrangement of threaded metal inserts encased therein, a low cost disposable stripper rubber for drill pipes or other tubulars which includes the molded reinforcing insert, and molding methods for forming the reinforcing insert and the stripper rubber.

A low cost, disposable, molded reinforcing insert which has a metal ring or a circular arrangement of threaded metal inserts encased therein, a low cost disposable stripper rubber for drill pipes or other tubulars which includes the molded reinforcing insert, and molding methods for forming the reinforcing insert and the stripper rubber.

This disclosure includes riser-component assemblies and methods of assembling the same that are suitable for managed pressure drilling (MPD) systems. For example, this disclosure includes integrated flow spool and isolation tool riser components that can be permanently coupled together and that can be configured to pass through a rotary table or other rig equipment.

A containment device for containing leakage from a stuffing box is provided. The containment device can have a base defining an interior space, a structural member positioned substantially vertically with an interior passage sized to allow a polish rod to pass through and a lid. The containment device can be adapted for connection to the stuffing box so that a bottom of the structural member rests on the stuffing box when the containment device is installed on the stuffing box. The containment device can be installed by removing a dust cap from the stuffing box and attaching the containment device to a top of the stuffing box with the interior passage aligning with the stuffing box. The dust is installed on top of the lid and the lid placed on the base. The polish rod can then be run through the interior passage of the containment device.

A containment device for containing leakage from a stuffing box is provided. The containment device can have a base defining an interior space, a structural member positioned substantially vertically with an interior passage sized to allow a polish rod to pass through and a lid. The containment device can be adapted for connection to the stuffing box so that a bottom of the structural member rests on the stuffing box when the containment device is installed on the stuffing box. The containment device can be installed by removing a dust cap from the stuffing box and attaching the containment device to a top of the stuffing box with the interior passage aligning with the stuffing box. The dust is installed on top of the lid and the lid placed on the base. The polish rod can then be run through the interior passage of the containment device.

A rotating control device can include a latch assembly with a lock ring that permits displacement of an inner mandrel in one longitudinal direction, and prevents displacement of the inner mandrel in an opposite longitudinal direction. Another rotating control device can include a latch assembly and an equalization valve having an open configuration in which fluid communication is permitted between an exterior and an interior of the rotating control device through the equalization valve, the latch assembly changing from a latched to an unlatched configuration only when the equalization valve is in the open configuration. A method of installing a rotating control device can include releasing a running tool from the rotating control device by producing relative rotation between components of the running tool.

The present invention relates to topical compositions containing a therapeutically effective amount of tetrahydrocannabinol. The compositions are useful for treating a patient suffering from conditions such as pain and pruritus, particularly neuropathic or chronic inflammatory pain and/or pruritus.

An apparatus includes a non-rotating housing, a rotatable member rotatably supported in the non-rotating housing and a bearing adapter sleeve disposed externally to the non-rotating housing. The bearing adapter sleeve has an internal upset for limiting longitudinal movement of the non-rotating housing. The bearing adapter sleeve has a retaining ring affixed to a longitudinal end of the bearing adapter sleeve to limit longitudinal movement of the non-rotating housing.

Seal housings with flange collars, floating bushings, seal compressors, floating polished rods, independent fluid injection to stacked dynamic seals, and related apparatuses and methods of use. Embodiments are described that permit the polished rod to float within a tubular shaft, and the tubular shaft to float within a stationary housing, of a seal housing, to permit the seal housing to accommodate rod deviation from center. Flange collars are provided to facilitate the interconnection between seal housings and driveheads that previously were incompatible with one another.

A rotating control device includes a bowl housing with an inner aperture to receive a seal and bearing assembly. A plurality of hydraulically-actuated fail-last-position latching assemblies are disposed about an outer surface of the bowl housing to controllably extend a plurality of piston-driven dogs radially into a groove of the seal and bearing assembly. The seal and bearing assembly includes a housing, a mandrel disposed within an inner aperture of the housing, a first interference-fit sealing element attached to a bottom distal end of the mandrel, a plurality of tapered-thrust bearings indirectly mounted to the housing, a preload spacer disposed between top and bottom tapered-thrust bearings, a plurality of jam nuts to adjust a preload of the tapered-thrust bearings and a lower seal carrier attached to the seal and bearing housing comprising a plurality of dynamic sealing elements that contact the mandrel.