Abstract: A plug is engageable with a ball for seating in a tubular having an internal profile. The plug's body has a bore with a seat. Blocks disposed on the body are temporarily held in a retracted condition, but the blocks are biased outward to an expanded condition for engaging inside the tubular. The plug sets in the tubular with the blocks released from the retracted condition to the expanded condition. With the ball dropped downhole, the seat engages the ball so that fluid pressure is sealed from uphole to downhole through the bore. With applied fluid pressure against the seated ball, the plug can move through the tubular until the blocks seat in the internal profile of the tubing, sliding sleeve, or other component. A seal on the plug can then seal inside the tubular while the blocks seat in the profile and applied pressure pushes on the seated ball on the plug's mandrel.

Abstract: The power charge of a wireline pressure setting assembly includes a barrier located adjacent an open upper end of the power charge. The barrier centralizes the power charge in horizontal applications to ensure the associated tool properly sets. The barrier also limits how much of the power charge can flow out of its housing in a horizontal application. The barrier can be porous or impervious to contain as much of the power charge in a small sub-chamber in the pressure chamber defined by the barrier. Once ignition starts in the power charge the barrier can be consumed or otherwise disabled for the normal functioning of the setting device to set a tool and release from the set tool in a normal manner.

Abstract: A plug is engageable with a ball for seating in a tubular having an internal profile. The plug has a body with a bore with a seat. One or more blocks disposed on the body are temporarily held in a retracted condition, but the one or more blocks are biased outward to an expanded condition for engaging inside the tubular. A seal is disposed on the body for sealing inside the tubular. The plug sets in the tubular with the one or more blocks released from the retracted condition to the expanded condition. With the ball dropped downhole, the seat engages the ball so that fluid pressure is sealed from uphole to downhole through the bore. With applied fluid pressure against the seated ball, the plug can move through the tubular until the blocks seat in the internal profile of the tubing, sliding sleeve, or other component. The seal on the plug can then seal inside the tubular while the blocks seat in the profile and applied pressure pushes on the seated ball on the plug's mandrel.

Abstract: The power charge of a wireline pressure setting assembly includes a barrier located adjacent an open upper end of the power charge. The barrier centralizes the power charge in horizontal applications to ensure the associated tool properly sets. The barrier also limits how much of the power charge can flow out of its housing in a horizontal application. The barrier can be porous or impervious to contain as much of the power charge in a small sub-chamber in the pressure chamber defined by the barrier. Once ignition starts in the power charge the barrier can be consumed or otherwise disabled for the normal functioning of the setting device to set a tool and release from the set tool in a normal manner.