Abstract: A hydraulic setting tool for packers. The setting tool comprises a case with a ball valve therein, a bypass passageway for bypassing around the ball valve when the ball valve is in a closed position, a fill valve for closing the bypass passageway when desired, and a packer setting sleeve for hydraulically setting a packer attached below the setting tool. The fill valve is preferably characterized by a sliding sleeve valve annularly disposed on a stationary mandrel in the case and is movable in response to a pressure in the tool. The packer setting sleeve is attached to a setting piston which may be actuated in response to a first differential pressure between the tool string and a well annulus. A slidable mandrel is provided in operative association with the ball valve and is movable in response to a second differential pressure between the well annulus and the tool string.

Abstract: The hydraulic setting tool of the present invention comprises an adapter, housing, piston, piston sleeve and shear sleeve rod.

Abstract: A retrievable plug having an improved dog locking sleeve and having adjustable dog locking pins and pin sleeves retaining the dog locking sleeve within the packer mandrel.

Abstract: A retrievable plug having a dog locking sleeve which has extensions thereon to increase the effective axial length thereof to eliminate binding of the dog locking sleeve within the plug mandrel during actuation of the plug body for the removal of the plug body from the member in which it is installed.

Abstract: A closure of reinforced elastomeric material having layers or plies of reinforcing means bonded or secured to one or more reinforcing members in the outer periphery of the closure wherein each layer or ply of reinforcing means is comprised of a plurality of strips of fabric, each strip being angularly located with respect to another in the same layer or ply and with respect to another in an adjacent layer ply.

Abstract: A plug for sealing the end of conductor pipe of off-shore platforms comprising a cylindrical housing filled with a core of cementitious material, the housing being fixed to the end of the conductor pipe. A method of installing the conductor pipe is also disclosed.

Abstract: A pile wiper assembly for use on the jacket leg or pile sleeve of a marine platform, the pile wiper member comprising an elastomeric member having reinforcing means throughout and reinforcing member means in the periphery thereof and being retained on the jacket leg or pile sleeve by means of a pair of annular plates.

Abstract: An improved well packing device of the type having an inflatable bladder reinforced with a reinforcing material, and also having an annular end piece attached to the inflatable bladder. The reinforcing material is looped at one end about a toroidal member. This toroidal member is contained in an annular cavity of the end piece. A shoulder portion of the end piece forms a slot, narrower than the toroidal member, through which the reinforcing material extends, thus providing an improved connection between the inflatable bladder and the end piece.

Abstract: A removable plug for the J-tube of an offshore platform or marine structure comprising a plug housing, plug body releasably retained with the plug housing, and shear type threaded fastening means retaining the plug body within the plug housing. The plug body may comprise a buoyant plug body to assist in the retrieval of the plug body after the removal thereof from the plug housing.

Abstract: A plug comprising an easily releasable plug body having either a compression set type packer member, cup type sealing member or inflatable packer member, having locking dogs thereon, having sleeve type releasor abutting the locking dogs, having pressure equalization plugger abutting the sleeve type releasor and a plug body housing.

Abstract: An insertion type cementing baffle comprising a baffle housing and insertion type cementing baffle member.

Abstract: A reusable plug for sealing the conductor pipe of offshore platforms comprising a cylindrical housing, central body member and pressure equalization means.

Abstract: A reusable plug for sealing the conductor pipe of offshore platforms comprising a cylindrical housing, central body member and pressure equalization means.

Abstract: A pile wiper seal assembly for sealing the annulus between either a jacket leg or pile sleeve and a pile inserted therethrough of a marine platform, the pile wiper seal assembly comprising annular seal member means, upper end shoe means secured to the inner surface of either the jacket leg or pile sleeve having a recess receiving therein the upper portion of the annular seal member means and lower end shoe means secured to the inner surface of either the jacket leg or pile sleeve having a recess receiving therein the lower portion of the annular seal member means whereby the upper end shoe means and lower end shoe means retain the annulus seal member means in either the jacket leg or pile sleeve.

Abstract: A reusable plug for sealing the conductor pipe of offshore platforms comprising a cylindrical housing, central body member, pressure equalization means and retractable release means releasably securing the central body member to the cylindrical housing.

Abstract: A valve for repetitively allowing and preventing upward fluid flow through a casing string. The valve is convertible from a locked open position permitting reverse upward fluid flow therethrough to a check valve position preventing upward fluid flow therethrough by flowing fluid downwardly through the casing to actuate an indexing J-slot mechanism interconnecting the spring-loaded valve member and the valve body assembly. The valve may be recycled to the locked open position from the check valve position an unlimited number of times through the flowing of fluid in a forward direction downwardly through the casing string.

Abstract: A valve for repetitively allowing and preventing upward fluid flow through a casing string. The valve is convertible from a locked open position permitting reverse upward fluid flow therethrough to a check valve position preventing upward fluid flow therethrough by flowing fluid downwardly through the casing to actuate an indexing J-slot mechanism interconnecting the spring-loaded valve member and the valve body assembly. The valve may be recycled to the locked open position from the check valve position an unlimited number of times through the flowing of fluid in a forward direction downwardly through the casing string.