Abstract: A remote connection apparatus having a base plate with a test sealing ring attached thereto, a plurality of segments movably supported for both radial movement and vertical movement and cam means for moving the segments radially into sealing engagement with the test sealing ring or with a receptacle ring, the segments including passages to which flexible lines are connected and radial passages extending from the sealing surface of the segments whereby when the segments seal against the receptacle ring the passages in the segments are in communication with the passages in the receptacle ring.

Abstract: An improved forged steel structure lined with a corrosion resistant metal in which the lining and body are forged together. The improved method includes the steps of securing a bar of corrosion resistant metal within an alloy steel tube to form a billet, forging the billet to the desired shape with sufficient corrosion resistant metal to line at least one of the cavities of the desired shape and machining the forging to produce the desired lined structure. The amount of alloy steel and corrosion resistant metal in the billet being preselected to provide the desired lining without substantially weakening the structure.

Abstract: A mudline suspension system for supporting a hanger and casing attached thereto from a wellhead member having an internal recess with an upwardly facing internal shoulder therein including a split ring latching member having fingers normally extending upwardly and outwardly with downwardly facing shoulders on the exterior of the fingers adapted to engage the internal shoulder on the wellhead when the latch member is positioned in said recess, and releasable means for retaining the latch member supported on the hanger during running, the latch member when in engagement with said internal shoulder providing a landing surface for the hanger which supports the hanger and casing.

Abstract: A method and device for reducing the heat transfer in a high-temperature environment from a workpiece to an internally cooled skid pipe includes a plurality of alternating and spaced apart skids along an upper surface of the skid pipe. A reinforcement frame is secured to the remainder of the upper surface and an insulating material is placed within and around the reinforcement frame to effectively insulate the exposed part of the upper surface between the skid pipe and the work piece. The skids project from the upper surface more than the reinforced insulator to support the work piece.

Abstract: A well apparatus and method of running same, which apparatus includes a hanger body with a downwardly facing external shoulder adapted to land on a wellhead housing landing seat and having an external flow passage therearound for flow of fluids past the landing shoulder and around the exterior of the hanger body; a packer assembly adapted to seal against the interior of the wellhead housing and against a seal surface on the hanger body with an actuating sleeve surrounding a mandrel, which sleeve is adapted to move to set the packing ring and includes means holding the sleeve against inadvertent setting and means holding the packer assembly in set position, together with a running tool which is releasably engaged to the hanger body and to the packer assembly so that on seating of the hanger body, the running tool may be released from the hanger body to move the packer assembly into sealing engagement with the hanger body and with the interior of the wellhead housing.

Abstract: There is disclosed a ram type blowout preventer having a pair of shear rams adapted to shear pipes suspended in the bore of the preventer and subsequently seal off the bore. The rams utilize a transverse packing for sealing between the shear blades when they are closed. One shear ram has a ramp adapted to engage a shoulder on the opposing ram so as to urge the shearing blades closer together as they are closing and thereby reduce the vertical gap which the transverse seal must bridge.

Abstract: A wellhead shearing apparatus suitable for use on oil and gas wells having hydrogen sulfide. The apparatus includes a body with a vertical bore and opposed guideways extending from the bore. A ram assembly with two rams, means for moving each ram in the guideways together with the bore for shearing pipe in the bore and apart for other well operations. One ram has an upper cutting blade and the other ram has a lower cutting blade, which has a hard metal insert providing its cutting edge and the upper cutting blade has a hard cutting edge. The rams are of steel having a maximum hardness of 24 to 26 Rockwell C and the insert has substantially greater hardness. The hard cutting edges of both blades are isolated from the sour gas when the blades are under stress as a result of sealing across the vertical bore.

Abstract: A valve for high temperature abrasive service having a body with an inlet connected to a valve chamber and an outlet extending through a valve seat from the valve chamber, a valve stem movable toward and away from the valve seat, a valve member mounted on the valve stem to coact with the valve seat to control flow therethrough, said valve member having an outer sleeve of abrasion resistant material which is supported by annular split springs to prevent rattling of the sleeve and to insulate it from the effects of differential expansion between it and its internal support members. The spring is generally annular in shape with its width extending axially of the sleeve and having sinusoidal waves above and below its circular axis.

Abstract: A shearing apparatus for installation on a wellhead and having capability of shearing drill collars.

Abstract: An annular blowout preventer having a housing with a vertical bore therethrough, a packer including a resilient annulus and upper and lower series of irising metal inserts adapted to increase the support for the annulus when it is compressed axially to constrict the vertical bore and an annular piston movable in the housing to apply an axial compression load to the packer.

Abstract: A flowline switching apparatus having a tubular housing with end closures and a drum rotatably mounted therein with a passage through the drum aligned with a port in one end closure and positioned to sequentially align with each of a plurality of ports in the other end closure as said drum is rotated, a power cylinder connected to said housing and having a plunger with a ratchet pawl for rotating said drum, a second power cylinder connected to said housing with a plunger adapted to engage sequentially in recesses in the exterior of said drum to lock the drum in preselected positions of passage-port alignment, a third power cylinder connected to the housing with a plunger adapted to engage sequentially in recesses of varying depth on the exterior of said drum to indicate the position of the drum and means balancing fluid pressure between the interior and exterior and between opposite ends of said drum.

Abstract: A ball joint having first and second tubular members to be connected; the first tubular member extending toward the second tubular member and having an internal annular sealing means; the second tubular member extending toward the first tubular member and having an external annular spherical surface engaging within said sealing means, means for interconnecting the first and second tubular members so that relative pivoting of the members about the center of the annular spherical surface, the second tubular member and the sealing means being removable and replaceable through the flange connecting to the second tubular member.

Abstract: A fire safe valve having a valve body with a flow passage therethrough and a valve chamber intersecting the flow passage a valve closure member having a stem and being slidable in the valve chamber to open or close flow through the flow passage, a shoulder on the stem, a bonnet connected to the body, said bonnet having a bore through which the stem extends, a seat surrounding the stem and adapted to be engaged by the stem shoulder on backseating, means sealing between the stem and the bonnet bore outward of said seat, an actuator connected to move said stem and said valve closure member, a sleeve surrounding a portion of the stem, fusible material supporting the sleeve in a normal stop position to limit the outward movement of the stem to prevent backseating, melting of the fusible material allowing the sleeve and stem to move so that the stem backseats, and means associated with said sleeve to control the actuator whereby on movement of the sleeve the valve closure member is moved to closed position.

Abstract: An apparatus for tensioning bonnet studs of a blowout preventer, said apparatus having a body with a pair of recesses and a piston positioned in each recess, each of the pistons having a piston rod extending from the body with a stud and nut receiving recess at the outer end of each piston rod, a pair of tension rods having internal threads at their outer ends of engagement with bonnet studs, means for providing engagement between the body and the tension rods, a passage through the body to the body recesses for application of a pressure fluid to the pistons, the pistons and the tension rods being positioned on the body so that when the piston rods are positioned over two opposite bonnet studs the tension rods engage two other opposite bonnet studs.

Abstract: A blowout preventer having a housing with a bore extending therethrough and guideways intersecting the bore, a ram in each of the guideways, a packer in the face of each of the rams, a recess between the back of each packer and the face of the ram into which the packer can expand to partially reduce the sealing pressure on the packers and at least one passage communicating from the bore below the guideways to the recess to transmit well pressure to the recess.

Abstract: A tubular connector or riser connector having a pin section and a box section, a collet surrounding said sections and engaging a shoulder on one of said sections and having a plurality of fingers with internal ridges engaging with external ridges on the other section when the connector is sufficiently preloaded. A lock ring and lock nut are used to retain the collet fingers in engaged position.

Abstract: A blowout preventer having a body and bonnets hinged thereto with throw latches for securing the bonnets to the body, wedges between the body and the hinges for adjusting the tilt of the bonnet and the position of the hinge side of the bonnets when closed and wedges between the body and the latches for adjusting the position of the latch side of the bonnets when closed.

Abstract: Apparatus is disclosed in which a flexible line having its lower end anchored to a base fixedly mounted at an offshore location extends through an upwardly flared opening in the base for connection to a tension leg platform on the surface of the ocean.

Abstract: Flow control apparatus is disclosed in which a closure element is reciprocated between flow controlling positions by means of a stem which is substantially counterbalanced with respect to forces on the stem due to the pressure of the fluid being controlled as well as ambient pressure conditions.

Abstract: A packer assembly for a blowout preventer having movable rams consisting of two packers, in which the packer assembly is of deformable material for sealing around a well member extending through the preventer and has a variable bore so that it will effectively seal around members, such as pipe, within a range of sizes or diameters. More particularly, each packer includes a main body of deformable material having an arcuate or curved recess with the wall defining said recess forming a sealing surface, and deformable side sealing elements or portions at each side of said recess, said side sealing elements being of a size, configuration and volume which are so related to the deformable material of the main body that when the packer assembly is moved inwardly toward and around a well member or pipe extending through the preventer, a substantially uniform radial displacement of the main body and of the side sealing elements is effected to assure uniform circumferential sealing about said object or pipe.