Abstract: A coiled tubing hanger including a hanger bowl, a slip bowl supported in the hanger body, a plurality of slip segments disposed in the slip bowl so as to be movable between a retracted position wherein the tubular member is able to pass through the coiled tubing hanger and an extended position wherein a serrated surface of the slip segments engages the coiled tubing and forces the slip segments along the slip bowl so as to wedge the slip segments between the slip bowl and the coiled tubing to hold the coiled tubing.

Abstract: A casing seal and casing spool for providing a high pressure seal of the casing pipe of a well during fracturing operations. The casing seal includes a sleeve, a pressure-reactive ring seal, a retainer ring, a split ring and a lock ring. The sleeve has a center bore and a counter bore which is shaped to fit the end of a casing pipe. The retainer ring has an upper recess to accommodate deformation of the ring seal as the ring seal reacts to high pressure. Assembled from four split ring members, the split ring has an upper lip for insertion into an annular groove in a bore and a lower ring recess to accommodate the lock ring. The lock ring is secured in the ring recess of the split ring with threaded fasteners. The casing spool includes an upper flange, a lower flange, a center bore extending between the flanges, an upper counter bore and a lower counter bore.

Abstract: A casing seal and casing spool for providing a high pressure seal of the casing pipe of a well during fracturing operations. The casing seal includes a sleeve, a pressure-reactive ring seal, a retainer ring, a split ring and a lock ring. The sleeve has a center bore and a counter bore which is shaped to fit the end of a casing pipe. The retainer ring has an upper recess to accommodate deformation of the ring seal as the ring seal reacts to high pressure. Assembled from four split ring members, the split ring has an upper lip for insertion into an annular groove in a bore and a lower ring recess to accommodate the lock ring. The lock ring is secured in the ring recess of the split ring with threaded fasteners. The casing spool includes an upper flange, a lower flange, a center bore extending between the flanges, an upper counter bore and a lower counter bore.