Abstract: A drill collar is formed by inner and outer tube means having an annular space extending longitudinally therebetween. Rigid filler material in the annular space forms, with the inner and outer tube means, a unitary elongated tubular structure. The rigid filler material precludes movement of the inner and outer tube means relative to each other. A longitudinal bore extends through the tubular structure.

Abstract: A telescopic shock absorber for use in a drill string includes a resilient arrangement to cushion telescopic contraction and extension of the shock absorber in response to shock loads and vibrations imparted during drilling. The shock absorber operates independently of the drilling fluid pressure conducted through the structure during drilling operations. A dampening system assists in cushioning the shock loads and vibrations and the dampening system and resilient arrangement are deactivated when jarring impacts are delivered to the well string by a drilling jar carried therein. The resilient arrangement provides a combination mechanical and hydraulic system for cushioning the impact loads and vibrations encountered.

Abstract: A cylindrical closed housing formed of clear material provides a test flow cell for monitoring the halogen and pH level in a flowing liquid stream. The cylindrical housing includes a circumferential, longitudinally extending side surface with front and back end surfaces secured to the circumferential cylindrical surface to form the closed, hollow housing test cell. The housing has a first inlet opening at one side for the liquid stream; an outlet opening for the liquid stream at the top of the housing and a second inlet opening for acid at the bottom of the housing. A pair of additional openings, one on each side of the outlet opening receives and positions electronic sensing probes diagonally within the test flow cell; the probes terminate between the top outlet and bottom second inlet openings and opposite the first inlet side opening.A controller includes circuitry which enables the halogen and pH levels desired in a reservoir of water to be preset.

Abstract: A penetration seal for a surface opening and method of forming it by positioning a non-liquid, non-combustible substance in the void of the surface opening to provide a dam of desired thickness and applying an elastic coating over the dam and the object adjacent its passage through the dam to accommodate movement of the object relative to the dam without forming cracks in the closure.

Abstract: A quadrilateral is secured to horizontally extending and vertically spaced supports adjacent a water covered area. A support frame is secured to the quadrilateral in a downward, parallel relationship thereon and projects forwardly of the quadrilateral. A longitudinally extending elongated elastomer body bumper is removably secured on the support frame, and a stabbing guide is provided adjacent the lower end of the quadrilateral which includes a forward portion spaced laterally relative to the quadrilateral and which extends upwardly and outwardly therefrom to serve as a guide to receive and support the lower end of the support frame as it and the elongated elastomer body bumper thereon are lowered longitudinally of the quadrilateral in a water covered area to be positioned on and supported by the quadrilateral in the water covered area.

Abstract: An energizer for use with a jar mechanism incorporated on inner and outer bodies in a well string to assist the jar mechanism in delivering an upward jar to the well string includes longitudinally spaced seal means between the inner and outer bodies forming a chamber for receiving a compressible medium therein. A differential area formed on one of the bodies within the compressible medium chamber compresses a compressible medium in the chamber as the well string is lowered to position the inner and outer bodies so that the jar mechanism is actuated to restrain relative longitudinal movement between the inner and outer bodies to an extended position whereby a pull force may be developed in the well string in one of the bodies.

Abstract: A tubular member is provided with expandable seals which are expanded into sealing engagement with a surrounding surface by a sleeve actuating member on the tubular member. A releasable retaining member is secured to the tubular member and has shoulder means adjacent one end interlocked with shoulder means adjacent an end of the sleeve actuating member to retain the sleeve actuating member in nonexpanding seal position as the tubular member is lowered into position in the well bore. The shoulder means on the releasable retaining member is on a longitudinally extending, radially flexible portion of the retaining member. An annular shoulder intermediate the ends of the flexible portion engages the upper end of a liner in the well bore, and moves the flexible portion radially inwardly to disengage the interlocked shoulder means, thus releasing the sleeve actuating means to expand the expandable seals.

Abstract: Material is supported on rotatable reel means with one end extending therefrom for connection with a well string for a well bore. Movable means support the portion of material extending between the reel means and well string. Means lower and raise the movable means whereby some of the supported material may be selectively moved into the well bore or removed therefrom along with the well string, if desired, without rotating the reel means on which it is supported during the lowering or removing procedure. Means rotate the reel support means to selectively pay out additional material for movement into the well bore or to reeve material removed from the well bore thereon. Control and actuating means effect operation of the various means as desired. Means support the well string and the material to enable the lowering of the well string and material into, and removal thereof, from the well bore.

Abstract: A longitudinally extending housing with end closures forms a closed mixing chamber within the housing. A mixer that has a fluid material inlet at each end thereof with longitudinally spaced, opposed ends forming fluid material outlets and a central peripheral discharge from the mixer between the end outlets is supported on a rotatable shaft that extends through one of the end closures to position the mixer in the mixing chamber. Housing inlet means comprising a pair of conduits communicate fluid to the closed mixing chamber for discharging it thereinto adjacent, but spaced from the end fluid inlets of the mixer, and housing outlet means is aligned with the mixer to receive the central discharge therefrom. The diameter of the mixer is about one-half the diameter of the closed mixing chamber, and the length of the mixer is about one-third the longitudinal extent of the closed mixing chamber. The mixer is positioned substantially equidistant from the sides and ends of the mixing chamber.

Abstract: A drilling mast and drawworks elevator are pivotally secured to a substructure support with a frame secured to the support and extending upwardly between the drilling mast and elevator support. A cable on a rotatable drum on the drawworks elevator extends from a traveling block in the drilling mast, around the drilling mast crown block, to a drum on the drawworks elevator, and a hook is suspended by the traveling block in the drilling mast. Sheaves are mounted adjacent the upper end of the frame. Mast raising sheaves are mounted in the drilling mast as are deflection sheaves, and a slingline equalizer is connected with the hook means, with sheaves positioned thereon.

Abstract: Annular, hollow upper and lower members are secured to an upwardly extending supporting leg of an offshore structure to project therefrom in generally the same plane. Each of the members includes a cylinder with the upper and lower cylinders being axially aligned and projecting from an end of each of the members; each cylinder also has a smaller diameter than its respective member to provide an annular space therebetween and each cylinder has an end portion within its respective member. Yieldable material is molded in the annular space between each member and its cylinder and is provided with longitudinal recesses therein to accommodate movement of the cylinder relative to its respective member. A longitudinal stem is provided for securing to and extending between the upper and lower cylinders with a support thereon for supporting a cylindrical bumper on the stem for rotation relative thereto. Second yieldable material is molded between the cylindrical bumper and the stem.

Abstract: A urethane foam generally rectangular pad comprises an upper patient support surface and a parallel bottom bed mattress engaging surface. Longitudinal edges extend between the upper and bottom surfaces and include an upwardly and outwardly inclined surface extending from the bottom surface. An opening is provided in one end of the pad for receiving a bedpan. The inclined surface on the longitudinal edges enables the pad to be positioned adjacent a patient which has been rolled toward one side at an angle relative to a bed mattress so that the pad can be positioned adjacent the patient whereupon the patient and the pad may be rolled back upon the mattress to position the patient on the pad and to position the pad on the bed mattress.

Abstract: A plurality of thin plates of metal is mounted on the central raised surface portion of a collar formed by semicircular annular members that are hingedly secured together. Each of the plates includes a blade portion to contact the well bore wall; a pair of spaced legs formed by spaced strips extend from one edge of the blade portion in generally a plane transverse to the blade portion, each of the legs including: a first portion having openings therein for securing one each of the plates in one each of the openings; a second portion extending upwardly from the first portion and outwardly through the opening; and a third portion extending transversely of said second portion and forming a juncture with the blade portion along a plane generally parallel with and elevated above the central collar surface so that flexing of the blade portion is generally along the juncture of the third portion and blade portion in a plane above the raised central surface of the collar.

Abstract: Aggregate, fragmented material and the like is transported in a pipeline by introducing foam under pressure into the pipeline along with the aggregate, fragmented material and the like to be transported and the foam and aggregate, fragmented material and the like are maintained at a pressure to move the aggregate, fragmented material and the like and foam along the pipeline. The foam may be regenerated at spaced positions along the pipeline by introducing additional foam into the pipeline or introducing gas under pressure into the pipeline to agitate the foam. The gas phase of the foam, as well as the gas employed to regenerate the foam consists essentially of one of the group consisting of air, nitrogen, natural gas or carbon dioxide and the liquid phase of the foam consists essentially of one of the group consisting of water, brine or oil.

Abstract: This invention relates to a seismic electric connector assembly which comprises a pair of cooperable plug members. The connector carries a plurality of engageable male and female electric contacts in opposed end faces of the plug members. The contacts are embedded in a resilient, elastic insulator base. The base of each concave contact surface is provided with a linear groove for accepting minute dirt particles therein. Each contact is made up of a head and of a rod frictionally engaged therewith, and a coil spring is mounted on each rod.

Abstract: An annular hollow support telescopically receives an annular hollow body in which is molded a longitudinally extending cylinder embedded in a frangible mass. The support includes an annular flange to seat and position the hollow body so that the hollow body projects longitudinally of and from the support and a surface is associated with the support to position the support on a marine structure so that the support projects laterally from the marine structure. Jack means are connected between the support and the annular hollow body for assisting in removing the annular hollow body and supported cylinder relative to the support.

Abstract: First means are provided which removably engage an upwardly extending tubular member. Support means for the safety valve sub are pivotally connected to the first means. Means are provided to secure the support means and the first means in axial alignment when the support means is tiltably moved to such position and rotatable means are carried by the support means to rotate the safety valve sub to connect it with an upwardly extending tubular member.

Abstract: A protective clamp assembly is provided for securing a conductor lines to the production tubing of oil and gas wells and providing for efficient transition of the conductor lines past the various connections of the well tubing. To prevent crushing or other damage to those portions of the conductor lines that are located at tubing connections, the clamp assembly of this invention provides for efficient transition of the conductor lines past the enlarged connections of the tubing. Under circumstances where the tubing is brought into forcible contact with the well casing within which it is received, the protective clamp assembly contacts the well casing thus preventing the well casing from applying crushing force to the conductor lines.

Abstract: A plurality of vertically extending guide means is carried by the structure of a jack-up type mobile offshore platform. The guide means is spaced about each of the vertically extending legs which engage the floor of a water-covered area and enable the hull, forming part of the structure, to be elevated and supported in position above the water in the water-covered area. A first pair of wedges forms a first wedge means that is movable vertically in each of the guide means, and a second pair of wedges forms a second wedge means that is spaced vertically in each of the guide means relative to the first wedge means. The first and second wedge means are also movable vertically in the guide means.