Abstract: An adjustable stacked bearing assembly has a plurality of bearing sub-assemblies interposed between thrust shoulders on a housing and a shaft extending through the housing, each bearing sub-assembly being individually adjustable or assembled in a condition in which all tolerance is eliminated. The bearings transmit thrust and radially center the shaft in the housing. The stacked bearing assembly is disclosed for use with a fluid pressure operated in-hole motor drill, the specific motor being shown as being of the helicoidal type.

Abstract: This invention relates to a hydroprocessing catalyst particularly useful in hydrocracking comprising a low sodium faujasite zeolite produced by a high pressure exchange of Na cations with a solution of an ammonium salt as a substrate for incorporation of a hydrogenating metal compound.

Abstract: Shaped alumina pellets containing titania, catalysts employing the same, and process for producing the same.

Abstract: A rare earth exchanged zeolite of the faujasite type in which the equivalent of Na is less than 0.1 and the rare earth is at least 0.9 equivalents per gram atom of aluminum and catalysts including the same.

Abstract: This invention relates to the preparation of rare earth exchanged X type faujasite zeolites in which the Na content is reduced by exchange with rare earth cations to introduce in excess of about 0.9 equivalents of rare earth cations per gram atom of aluminum and catalysts employing the same.

Abstract: A mechanically strong, thermally stable porous siliceous particle having a high pore volume and surface area with a major portion of the pore volume in pores of radii more than 20 Angstroms and the process of producing the particles by shaping a clay, acid-leached to a degree insufficient to destroy the plasticity of the clay, forming the leached clay into shaped particles, calcining the particles and further extracting the calcined clay particles without impairing their shape.

Abstract: This invention relates to zeolitic catalysts composed of an exchanged zeolite of the faujasite type and a matrix composed of alumina and an alumina-silica component.

Abstract: A multiple in-hole motor and drill combination is disclosed for drilling a large diameter earth bore. The motor assembly is supported on a fluid circulating pipestring, and includes a plurality of circumferentially spaced longitudinally extended in-hole motor and drill combinations to which motor fluid is supplied through the running in pipestring, the motor fluid then passing through the rotary drill bit driven by the motor and returning to the top of the well. The plural in-hole motor drill assemblies are rotated during the drilling operation. A hydraulic drive motor powered by a separate fluid source is employed to rotate a housing to drive the multiple motor drill assemblies rotatably about the central support. The lower end of the multiple motor drill assembly supports a number of weights to apply drilling weight to the bits.

Abstract: A shock absorber assembly has an outer body connectible at one end in a well drill string and an inner body connectible at one end in the well drilling string, with the bodies telescopically coengaged. Between the bodies is an annular space, filled with hydraulic fluid and containing a pressure equalizing annular piston. Stacked sets of dished-spring washers are disposed in coengaged frictional relation to form parallel-acting columns in the annular space between the two bodies. The equalizing piston is exposed to the pressure of drilling fluid inside the inner body, in one form, and outside the outer body, in another form. Another equalizing piston defines between the bodies a fluid filled chamber containing torque transmitting means for causing the bodies to rotate as a unit during drilling operations while allowing telescopic extension and retraction of the bodies. Telescoping of the bodies causes fluid transfer through restricted passages to dampen the telescopic motion.

Abstract: A misalignment connector for large pipelines includes an internal, metal seal ring having an external spherical surface which is axially and circumferentially loaded between opposed internal spherical metal surfaces of pipe connector hubs having parts engaged with holding means having spherical surfaces enabling the connector to be made up with the pipe connector hubs disposed over a range of angular misalignment and with the sealing ring loaded axially and inwardly when the connector body parts are secured together by the holding means to prevent relaxation of the preload on the sealing ring. The metal sealing ring is initially supported on one of the hubs by means enabling relative angular motion of the sealing ring as it is loaded between misaligned hubs. The hubs are provided with thrust surfaces enabling them to be initially preloaded against the sealing ring by a loading tool.

Abstract: A misalignment conductor for large pipelines or conductor pipes includes an internal, metal seal ring having an external spherical surface which is axially and circumferentially loaded between opposed internal spherical metal surfaces of connector hubs. Connector body parts engaged with or formed on the pipe connector ends or hubs have spherical surfaces enabling the connector to be made up with the pipe connector hubs disposed over a range of angular misalignment. The sealing ring is preloaded by a loading tool when the connector body parts are secured together to prevent relaxation of the preload on the sealing ring. The metal sealing ring is initially supported on one of the hubs by means enabling angular adjustment of the sealing ring as it is loaded between misaligned hubs.

Abstract: A through the flowline or "TFL" tool selector has a base provided with a number of spaced flowline ports and a diverter tube shiftably mounted in a housing for selective communication with the flowline ports. The diverter tube is actuated by a reciprocable and rotatable piston and cam drive which shifts the diverter tube progressively from one flowline port to another. The piston is shiftable in a cylinder to which pressure fluid is supplied and then exhausted to effect actuation of the cam drive.

Abstract: Casing is run into a well bore hole on a running pipe string. Fluid motor and drill apparatus is supported in the casing, with the drill extending below the lower end of the casing to drill the bore hole in advance of the casing. For subsea drilling operations, the casing is suspended from a riser housing which lands on a subsea base, and the running pipe is released from the riser housing to enable retrieval of the motor and drill assembly. Plural motors are employed for drilling large holes.

Abstract: Apparatus for repressuring a tennis ball or similar play ball, which has lost a portion of its initial inflation pressure, in which a container or enclosure for the ball contains a chemical and a suitable fluid that reacts with the chemical to generate a gas at atmospheric pressure capable of diffusing through the permeable elastomeric material of the ball to elevate the total pressure within the ball toward its initial pressure value.

Abstract: A pipe connector has a pin initially stabbed into a box, the pin and box then being axially loaded together at confronting transverse surfaces while the pin and box are pressurized to expand the box and compress the pin, so that when the pressure is relieved a pressure energized shrink fit is provided and the connector is rendered rigid to enhance tensile, compressive and bending strength and provide a fluid tight joint useful in making up lengths of pipe such as piles and pipelines. Locking screws hold the connector against axial separation to maintain the pin under axial compression and maintain the box under axial tension. The lock screws are threaded into the upper end of the box to fasten the pin to the box or a sleeve or gland nut can be threaded on one of the pins and the box and engage a locking shoulder on the other of the pin and the box.

Abstract: A pipe connector has a pin initially stabbed into a box, the pin and box then being axially loaded together at confronting transverse surfaces while the pin and box are pressurized to expand the box and compress the pin, so that when the pressure is relieved a pressure energized shrink fit is provided and the connector is rendered rigid to enhance tensile, compressive and bending strength and provide a fluid tight joint useful in making up lengths of pipe such as piles and pipelines. Lock means hold the connector against axial separation to maintain the pin under axial compression and maintain the box under axial tension, including circumferentially spaced locking elements projecting radially from one of said pin and box into a locking recess of the other of said pin and box.

Abstract: A pipe connector has a pin initially stabbed into a box, the pin and box then being axially loaded together at confronting transverse surfaces while the pin and box are pressurized to expand the box and compress the pin, so that when the pressure is relieved a pressure energized shrink fit is provided and the connector is rendered rigid to enhance tensile, compressive and bending strength and provide a fluid tight joint useful in making up lengths of pipe such as piles and pipelines.

Abstract: A pipe connector has a pin initially stabbed into a box, the pin and box then being axially loaded together at confronting transverse surfaces while the pin and box are pressurized to expand the box and compress the pin, so that when the pressure is relieved a pressure energized shrink fit is provided between the pin and box and the connector is rendered rigid to enhance tensile, compressive and bending strength and provide a fluid tight joint useful in making up lengths of pipe such as piles or pipelines, locking elements or coengageable ratchet teeth or gripping means on the tapered surfaces, automatically locking the pin and box together to prevent separation of the transverse surfaces and hold the pin in compression and the box in tension.

Abstract: A pipe connector has a pin initially stabbed into a box, the pin and box then being axially loaded together at confronting transverse surfaces while the pin and box are pressurized to expand the box and compress the pin, so that when the pressure is relieved a pressure energized shrink fit is provided and the connector is rendered rigid to enhance tensile, compressive and bending strength and provide a fluid tight joint useful in making up lengths of pipe such as piles and pipelines. A lock ring holds the connector against axial separation to maintain the pin under axial compression and maintain the box under axial tension.