Abstract: The present invention relates to an anchor system which includes an anchor projectile section having an anchor body, beams pivotally connected at their lower end to the body and interconnected by flexible segments, a pressure storage or launching section having a launching tube in which the upper body of the projectile section is positioned for being launched therefrom, a drag plate secured around the launching section with substantial weight therein and sufficient diameter to create a large virtual water mass and hydrodynamic drag to resist upward movement of the launching section when the anchor projectile section is released for launching into the sea bottom, a remotely controlled collet connector securing the anchor projectile section within the launching section until the anchor is to be launched for setting in the bottom.

Abstract: A ram-type blowout preventer including a body with a central bore and guideways extending outward therefrom, a ram in each guideway with means for moving it inward and outward and means for compensating for wear of the guideway or ram including at least one skid secured to the lower surface of the ram.

Abstract: An improved heat resistant seal assembly for sealing across an annular recess between the interior of a wellhead member and the exterior of a tubular member including a heat resistant seal ring in the recess, a pressure responsive ring for moving the seal ring into sealing position in the recess, latching means to retain the pressure responsive ring in set position and spring means between the seal ring and the pressure responsive ring to maintain a sealing force on the seal ring.

Abstract: A ram-type blowout preventer for use in the drilling of onshore and offshore wells, having secondary plastic injection sealing means whereby, on failure of the conventional ram seal, a well closure may still be ensured for protection of human life, equipment and the environment.

Abstract: A stem operated valve having a body and a bonnet secured to the body, a valve member movably positioned within the body, and a stem secured to the valve member and extending into the bonnet, a seat on the bonnet surrounding the stem, a shoulder on the stem adapted to engage the seat, a stem packing positioned outward of the stem shoulder and bonnet seat, a fusible material at the outer end of the bonnet and stem supporting the stem with its shoulder spaced from the bonnet seat during normal operations and holes in the bonnet through which the fusible material exits when the valve is exposed to fire whereby the stem shoulder engages the bonnet seat to seal around the stem.

Abstract: A shear ram assembly for a blowout preventer having a pair of rams with opposed shear blades, means for moving the shear blades across the pipe opening of a blowout preventer, a face seal on one of said rams and a shoulder above said face seal, the forward face of the shear blade of the other ram coacting with the shoulder to move a cut pipe section out of its path and also being shaped to enter into sealing engagement with the face seal, and a debris drain through the blade of said one ram to allow debris to move out of the path of the sealing face of the shear blade of the other ram toward the face seal.