Abstract: A bridge plug assembly includes a tee bushing including a base and a stem, a coned bushing having a conical section and defining a bore that is configured to receive the stem, a molded assembly that is moveable over the conical section from an initial position to a set position, and a seal. The conical section is configured as a wedge such that when the stem is forced into the conical section during a setting process, the molded assembly and the seal move over the conical section from the initial position to the set position and expand radially outward by a wedge action of the conical section against a well casing. The molded assembly includes a slip assembly having a plurality of slip segments, over-molded with an elastomer. All components are made of dissolvable materials so as to reopen the well casing over time to its original inner diameter.

Abstract: A bridge plug assembly includes a tee bushing including a base and a stem, a coned bushing having a conical section and defining a bore that is configured to receive the stem, a molded assembly that is moveable over the conical section from an initial position to a set position, and a seal. The conical section is configured as a wedge such that when the stem is forced into the conical section during a setting process, the molded assembly and the seal move over the conical section from the initial position to the set position and expand radially outward by a wedge action of the conical section against a well casing. The molded assembly includes a slip assembly having a plurality of slip segments, over-molded with an elastomer. All components are made of dissolvable materials so as to reopen the well casing over time to its original inner diameter.

Abstract: A gasket (10) has a retainer (30) comprising a plurality of balls encapsulated within a matrix of polymeric material (e.g., rubber). The balls are made of hard material (e.g., metal, hard plastic, ceramic, etc.) and prevent over-compression during gasket installation. The polymeric matrix provides the gasket (10) with a two-dimensional grid of joints or elbows, allowing it to conform to an almost infinite number of different flange surfaces. The matrix can be made of the same material as, and molded at the same time as, the gasket's sealing elements (40, 50, 60).

Abstract: A pipestring (12) wherein the leading coupling portion (221) of a first pipe segment (141) and the trailing coupling portion (242) of a second pipe segment (142) are coupled together. A leading seal part (341) is installed in the leading coupling portion (221) of the first pipe segment (141) and a trailing seal part (362) is installed in the trailing coupling portion (242) of the second pipe segment (142). The seal parts (341, 362) interface to form a fluid seal between the composite pipe segments (141, 142), and also to provide an electrically conductive path between their electrical lines (461, 462).

Abstract: A pipestring (12) wherein the leading coupling portion (221) of a first pipe segment (141) and the trailing coupling portion (242) of a second pipe segment (142) are coupled together. A leading seal part (341) is installed in the leading coupling portion (221) of the first pipe segment (141) and a trailing seal part (362) is installed in the trailing coupling portion (242) of the second pipe segment (142). The seal parts (341, 362) interface to form a fluid seal between the composite pipe segments (141, 142), and also to provide an electrically conductive path between their electrical lines (461, 462).