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 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 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 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 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: 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: 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: A process of producing an ammonium zeolite of the faujasite type in which a zeolite of the faujasite type whose exchange sites are substantially entirely occupied by Na cations, is treated with an ammonium salt solution to exchange substantially all of the Na cations with NH.sub.4 cations with substantially no impairment of crystallinity by a control of the relation of the equivalents of NH.sub.4 in the solution to equivalents of Na in the zeolite.

Abstract: Pipe connectors particularly useful in securing sections of an underwater marine riser together, including a pin received in a box which are secured to one another by a plurality of lock dogs mounted in the box and movable radially inwardly against a portion of the pin by fluid actuated pistons to force the pin and box firmly together, the dogs being retained in position by fluid operated lock pistons. The lock pistons are operated by fluid pressure to shift them to an unlocking position, the fluid actuated pistons being operated by fluid pressure to shift the dogs outwardly and disconnect the pin and box from each other.

Abstract: A shaped hydrodesulfurization catalyst comprising a nonzeolitic substrate impregnated with a Group VI and a Group VIII catalytic metal and with a Group IV-B promoter and having a high resistance to abrasion and a process of producing the same employing a substantially nonacid Group IV-B metal compound as the source of the Group IV-B promoter.

Abstract: This invention relates to a high-activity catalyst of improved thermal stability employing a zeolite of the faujasite type, pseudoboehmite alumina gel and a synthetic mica-montmorillonite and may also include a clay.

Abstract: This invention relates to circulation subs used in connection with hydraulic in-hole motors with means for selectively interrupting circulation through the circulation sub.

Abstract: This invention relates to spring-loaded thrust bearings for shafts subject to a plurality of levels of thrust loads and in its preferred embodiment is applied to in-hole motors. The invention employs a plurality of spring systems, whereby the thrust load on one set of springs is limited to one level of thrust and another of the spring systems under said load may be loaded to a higher level.

Abstract: This invention relates to progressing cavity fluid motors with multiple segmented stator elements connected in series to provide a fluid passageway from the input of the initial stator of the series to the output of the terminal stator of the series; the rotor elements in each stator are connected together for simultaneous rotation.

Abstract: This invention relates to flow restrictors in fluid motors.

Abstract: This invention relates to flow restrictors in fluid motors where the operating fluid also passes through the bearings of the motor.