Abstract: A pressure plug system comprising a pressure plug with a tapered section, a receiving landing receptacle having a tapered section with substantially the same tapering angle as tapered section of the pressure plug, and tapering angle being less than the friction angle corresponding to the coefficient of friction between the pressure plug and the landing receptacle. The pressure plug engages the receiving landing receptacle providing reliable seal and locking the plug against landing receptacle preventing axial movement under cycling pressure and rotation of the plug during drillout.

Abstract: A radially expandable tubular connection and methods for expansion related thereto are disclosed. In an embodiment, a radially expandable tubular connection includes a radially-expandable box member. The radially-expandable box member includes an internal thread, and a non-threaded internal area including a groove providing a mechanical means for securing position of an elastomeric seal ring disposed in the groove. The radially expandable tubular connection further includes a radially-expandable pin member. The radially-expandable pin member includes an external thread for threadably engaging the internal thread. In addition, the radially-expandable pin member includes a non-threaded external seal surface carried by an elongated pin nose for engaging the elastomeric seal ring in a sealable manner.

Abstract: A method and apparatus for expanding tubulars is disclosed. In an embodiment, a tubular expansion apparatus includes an expansion swage. In addition, the tubular expansion apparatus includes an actuator. Moreover, the tubular expansion apparatus includes at least two anchors. The tubular expansion apparatus further includes at least one anchor longitudinally moveable relative to the other anchor while both anchors are engaged with the inner diameter of the tubular.

Abstract: A method and apparatus for tubular expansion are disclosed. In an embodiment, an apparatus for radially expanding a tubular comprises at least two expansion swages. At least one expansion swage is axially movable relative to other expansion swages. In addition, the apparatus includes sealing means capable of providing fluid tight pressure chambers between the expansion swages and an expanded portion of the tubular.