Abstract: A scraper for pipe is provided with scraper blades having arcuate scraper surfaces projecting therefrom with the blades movable radially between a contracted and expanded position which provides a first minimum diameter of the scraper surfaces in contracted position and a second maximum diameter when in expanded position which extends at least to the maximum internal pipe diameter, and an adjustment arrangement which enables said arcuate scraper blades to be adjusted radially to maintain said first and second diameters as the scraper surfaces wear.

Abstract: A movement measuring device includes circuitry which produces signals functionally related to the amount and direction of movement of a cable or drill line in relation to up and down movement of an object such as pipe and the like in a well bore. A totalizer device is provided with circuitry that is coupled to the movement measuring device to instrumentally display the object depth in the well bore resulting from the signals received from the movement measuring device. A switch is operatively connected to the cable or drill line and a device closes the switch when a predetermined weight or load on the cable or drill line is exceeded to provide power from a power source to the movement measuring device for transmitting the signals therefrom to the totalizer device. The totalizer device continuously displays the total depth of the object in the well bore.

Abstract: Relatively rotatable inner and outer tubular bodies include ports for communicating a well string in which the bodies are connected with the well bore. A seal between the bodies surrounds the port in one of the bodies to control communication between the bodies and well bore when the bodies are rotated to align and misalign the ports. A restrainer engages the well bore to restrain one of the bodies while the other is rotated by the well string and a receptacle with a port between seals that engage the well bore is provided so that a treating fluid placed in the well string may be pumped down while the body ports are open to discharge well string fluid to the well bore and when the treating fluid reaches the bodies, the ports are closed so the treating fluid may be discharged through the receptacle ports into the well bore zone isolated between the seals on the receptacle.

Abstract: For use with a top drive power unit supported for connection with a well string in a well bore to selectively impart longitudinal and/or rotational movement to the well string, a feeder for supplying a pumpable substance such as cement and the like from an external supply source to the interior of the well string in the well bore without first discharging it through the top drive power unit including a tubular member or mandrel extending through an outer housing which is sealably and rotatably supported thereon for relative rotation between the outer housing and the tubular member. The mandrel and outer housing have flow passages for communicating the pumpable substance from an external source to discharge through the outer housing and mandrel into the interior of the well string below the top drive power unit.

Abstract: A submersible offshore jacket assembly is provided having a plurality of elongated pilings with a first diameter. A plurality of spaced, longitudinally aligned sleeves of a diameter greater than the first diameter of the piling are interconnected by suitable bracing and receive a piling therethrough, so that the sleeves surround the piling and are spaced therealong separately one from the other. A plurality of braces are connected to one another and each of said sleeves in an arrangement whereby said sleeves with the pilings function as the legs of the assembly. Each of said pilings has an exterior surface area otherwise completely exposed to the environmental forces of tides, wind, waves and current, along substantially the entire length of each piling between the spaced sleeves.

Abstract: Apparatus releasably supported on a setting string responds to manipulation of the setting string to release therefrom and anchor to a tubular member. A member on the setting string is provided with a tubular member engaging arrangement which responds to further manipulation of the setting string to anchor the member in the tubular member. A disconnect is operable upon manipulation of the setting string to disconnect the setting string from the anchored member and a release arrangement enables the disconnected setting string to release the anchored apparatus from the tubular member.

Abstract: An expansible and contractable replaceable seal arrangement includes an elastomer body bonded to at least a pair of spaced, rigid plate members with a mechanical arrangement interconnecting the plate members and elastomer body to accommodate relative movement therebetween in response to expansion and contraction of the elastomer body bonded therewith and to inhibit separation of the plates and elastomer body.

Abstract: A method and arrangement for reciprocating a piston in a cylinder of a fluid actuated actuator between one and another alternate positions, and using the piston fluid actuator fluid to move a lock member from a first position to a second position to lock the cylinder when it is moved from one position to its other alternate position. Actuator fluid is communicated to unlock the lock member and to move the piston back to its one position. In another form, the lock member is moved to its first position by the actuator pressure fluid which actuates a valve to communicate actuator fluid pressure from the lock member to the cylinder to move the piston back to its said other position.

Abstract: A running string is releasably connected to a liner an liner hanger setting arrangement for lowering into a well bore casing and securing the liner to a casing. The liner hanger setting arrangement includes a first sleeve with upper and lower annular rows of conically shaped segments circumferentially spaced thereon. Upper and lower spaced rows of hanger slips are connected to a second sleeve by elongated strips and the second sleeve is releasably secured to the first sleeve whereby the second sleeve may be released from the sleeve for relative longitudinal movement therebetween to move the hanger slips onto the segments and secure the liner to the casing. The space between the segments in each row is substantial to accommodate relatively unrestricted fluid flow thereabout as the apparatus is manipulated and operations conducted in the well bore.

Abstract: A tennis court net center strap of a single elongated strip of material has a loop therein about midway to provide first and second strip portions with a loop end and free end respectively. The second portion has a Velcro fastener or lock of hook and loop surfaces and when the second portion is extended through a connection on the loop end with the tennis net therebetween, the second portion is doubled back on itself to lock the strap around the net. An additional lock secures the free end of the second portion to the second portion so the lock is positioned between the connection and additional lock.

Abstract: A sealing arrangement for the pin and box of a threaded connection between tubular members includes annular piston means for positioning in the box of one of the tubular members. Resilient seal means supported on the piston means seals between the pin end, box and piston means when the pin is threadedly engaged in the box. Additional seal means on the piston means is responsive to fluid pressure in the tubular members whereby the piston means may be urged toward sealing engagement with the pin end and the resilient seal means.

Abstract: Method and apparatus to hydrostatically test tubular members including a housing to enclose each end of the tubular member, which housing supports a unitary seal-lock ring assembly, the assembly having an annular resilient body with non-resilient L-shaped segments adjacent at least one end, anti-extrusion means adjacent the other end and an adjacent inner surface of the resilient body to close, seal and lock either or both the housings, selectively, about the open tubular member ends without closures engaged in or on the tubular member ends and without an axial end compressive force on the apparatus during hydrostatic test procedures.

Abstract: Opposed rams are sealably and reciprocally mounted in a body with opposed shear blades projecting from one end of each ram for movement toward each other to sever an elongated object extending between the rams and blades. A seal is provided on each blade and configured to sealingly receive therein the exposed portion of the opposed blade after the object has been severed, and each ram is provided with a cut out portion to receive the adjacent severed end of the elongated object to inhibit crushing thereof.

Abstract: Apparatus and method of positioning and seating a retrievable insert landing assembly in a well bore tubular member with a left-hand threaded portion and having a sealing bore above or below the threaded portion. A releasable connecting arrangement secures the landing assembly in a well bore tubular member by engaging with the left-hand threaded portion in the tubular member. The landing assembly has an internal polished bore above the connecting arrangement which slidably and sealingly receives a tubular extension attached to a well string. The connecting arrangement is actuated by lowering the retrievable landing assembly within the tubular member to position the connecting arrangement adjacent the left-hand threaded portion and then lifting up on the landing assembly to lock it with the left-hand threaded portion. The well string is manipulated to actuate the releaseable coupling and disconnect the well string from the landing assembly after it is connected with the tubular member.

Abstract: A body is provided with longitudinally spaced first and second annular grooves for receiving first and second longitudinally spaced annularly spaced seal and lock ring segment assemblies therein to sealingly engage and lock with a pipe coupling and a single pipe end engaged therewith for forming a fluid receiving test chamber that extends across the single connection between the pipe end and the coupling. A fluid passage in the body conducts fluid to move said first and second seal and lock ring segment assemblies into sealing and locking engagement with the pipe and coupling, respectively, to form the fluid receiving test chamber. A second passage conducts fluid to the chamber for testing the single connection between the members from inside the members to the exterior thereof through the single connection. A leak in the connection is determined by instrumentally noting a pressure drop in the chamber or by visually noting leakage of fluid at the connected pipe coupling end.

Abstract: A well bore barrier penetrator arrangement and method for a multiple conductor pump power cable includes a clamp for clamping each steel tube encased conductor and a seal arrangement for each conductor supported in a housing to enable each conductor to pass through the barrier and extend therebeyond on each side of the barrier. A member is movable longitudinally of the housing to secure the clamp arrangement and conductors against movement longitudinally relative to the housing and to compress the seal into sealing engagement with each of the conductors. The multiple conductors with the steel tubes thereon terminate at different longitudinal positions on each side of the barrier and coupling means engage each of the conductors on each side of the barrier with a power cable for supplying power to a pump connected to a production tubing in the well bore.

Abstract: A well bore pump electric power cable connector for field application to connect between the noninsulated ends extending from individual, insulated electric conductors of a high voltage pump power cable includes male and female elastomer boots each having a central passage therethrough to receive an end of the conductor to connect the noninsulated ends thereof, respectively, with a male electric conductor contact pin and female electric conductor socket in the male and female boots. The central passage has spaced shoulder means to mate spaced shoulder means on the male contact pin and female socket to retain them in the boots. Annular, longitudinally extending seal surface sealingly engage when the boots are mated and cooperating stop surface means and locked surface means engage when the boots are mated.

Abstract: A bore hole enlarging method and arrangement for connection with a rotary pipe string includes inner and outer body sections which form a body structure to provide a fluid flow path therethrough for communicating with piston and cylinder means formed between the body sections for receiving drilling fluid to effect telescopic movement between the body sections. Cutter arms are pivotally mounted on the inner body section and a cooperable support arrangement on the cutter arms and outer body section cooperate to expand or move the cutter arms outwardly of the body structure upon telescopic movement of the body sections in one relative direction and assist in attracting the cutter arms when desired.

Abstract: An elongated mandrel has enlargements adjacent each end with a reduced diameter mandrel section extending therebetween. A stabilizer member is supported on the mandrel section by bearing surfaces for relative rotation of the mandrel with a well string when the stabilizer member engages a well bore wall. Spaced seals and wipers between the mandrel and stabilizer member form a closed reservoir for receiving lubricant, and a passage that communicates with the reservoir and the well bore has a floating piston therein responsive to well bore pressure to equalize the well bore and reservoir pressure without exposing the lubricant in the chamber to well bore contaminants.

Abstract: Method and apparatus for supporting a liner so that the work string which lowers the liner into a well can be manipulated to selectively rotate and/or reciprocate the liner before hanging it on a casing in a well bore and for rotating the liner after it is hung on the casing.