Abstract: Embodiments of a plugging tool (10) of this disclosure a control bar head (20) and at least one sealing head (30, 40) pivotally connected to the control bar head, the control bar head including a stress suppressor (50) located at a lower end (25) of the control bar head, the stress suppressor including an elastomeric element (51). The stress suppressor can act as a dual-stage suppressor, there being a primary (first stage) and a secondary (second stage) stress suppressor or zone (50A, 50B). The primary stress suppressor has an arched-shaped lowermost end (58) located between a pair of spaced-apart feet (21) of the control bar head, the feet having lateral edges (23) and comprising the secondary stress suppressor. During rotation of the tool into the pipe, stress to the pipe is reduced in a range of 5X to 14X relative to a plugging tool without the stress suppressor.

Abstract: A pipeline inspection tool 300 of this disclosure is adapted for use a first pipeline service machine 200, including a control bar 210, when connected to a first valve 206 providing access to an interior of a pipe 52. The tool includes a connector 302 adapted for use in a pressurized pipeline, the connector including an electrical wire interconnect 308 and connectable at one end 304 to a distal end 212 of the control bar and connectable at another end 306 to a module 310, 310A, 310B of the pipeline inspection tool, module including a pressurized housing 314 containing the inspection tool. The module also includes a bulkhead 316 having a square O-ring 318 and a rod 320 that extends through the bulkhead to place the square O-ring in compression. In some embodiments, the tool includes two modules 310A, 310B, one containing a camera 330, the other containing lights 340.

Abstract: A completion system includes a pipeline fitting; a plug body sized for the fitting; a set of blades adapted for securing the plug body within the fitting, the blades having a retracted position and an extended position; a circumferential groove adapted to receive the set blades when in the extended position; and a control bar adapted for use with the plug body. The completion system of this disclosure further includes a sensor and the set of blades is adapted to trigger the sensor when the blades are a properly fully extended to a locking position in the circumferential groove, indicating the plug body is in a properly locked position, and to not trigger the sensor when the blades are not fully extended into the circumferential groove to their proper depth. In some embodiments, the sensor indicates a closed electrical circuit. In other embodiments, the sensor indicates a magnetic flux.

Abstract: A closure for pipelines carrying a fluid under pressure, the closure includes at one or more seals located on a vertical sealing face of the barrel collar along a leak pathway between a horizontal sealing face of the barrel collar and an ambient environment. In some embodiments, the horizontal sealing face includes a primary seal. The one or more seals are adapted to prevent the escape of fluids having a lower molecular weight than that of the main pipeline product or fluid contained by the closure, and is arranged to alter a path of a leak pathway to the ambient environment and to cause at a pressure drop across the one or more seals. The closure may also include a leak check valve for blowdown.

Abstract: A completion system includes a pipeline fitting; a plug body sized for the fitting; a set of blades adapted for securing the plug body within the fitting, the blades having a retracted position and an extended position; a circumferential groove adapted to receive the set blades when in the extended position; and a control bar adapted for use with the plug body. The completion system of this disclosure further includes a sensor and the set of blades is adapted to trigger the sensor when the blades are a properly fully extended to a locking position in the circumferential groove, indicating the plug body is in a properly locked position, and to not trigger the sensor when the blades are not fully extended into the circumferential groove to their proper depth. In some embodiments, the sensor indicates a closed electrical circuit. In other embodiments, the sensor indicates a magnetic flux.

Abstract: Embodiments of a plugging tool (10) of this disclosure a control bar head (20) and at least one sealing head (30, 40) pivotally connected to the control bar head, the control bar head including a stress suppressor (50) located at a lower end (25) of the control bar head, the stress suppressor including an elastomeric element (51). The stress suppressor can act as a dual-stage suppressor, there being a primary (first stage) and a secondary (second stage) stress suppressor or zone (50A, 50B). The primary stress suppressor has an arched-shaped lowermost end (58) located between a pair of spaced-apart feet (21) of the control bar head, the feet having lateral edges (23) and comprising the secondary stress suppressor. During rotation of the tool into the pipe, stress to the pipe is reduced in a range of 5X to 14X relative to a plugging tool without the stress suppressor.