Abstract: This invention relates to hydrothermal treatment of silica-alumina cogels resulting in a reduction in the NH.sub.4 content of the gel and the generation of a beta crystal phase and the employent of such gels as cracking catalysts.

Abstract: A bearing assembly, for a drive shaft connected to an in-hole motor rotor to drive a bit and a housing connected to the motor stator has sets of oppositely acting thrust bearings having corresponding members of bearings and parts at opposite sides of a thrust member on the shaft. Plural sets of thrust bearings are shown between spaced radial bearings to optimize load distribution.

Abstract: This invention relates to a process for catalytic oxidation of oxides of sulfur and also relates to oxidation of oxides of sulfur oxides and oxides of nitrogen.

Abstract: An in-hole motor drill assembly has the rotor of the motor which may be connected to the drill bit through a shaft connected to the rotor, and a housing which may be connected to the running string, and normally disengaged torque transmitting members between said housing and said shaft. Means are provided for engaging said shaft and said housing for mutual rotation by exerting a negative force on said housing, if the bit is stuck. The shaft can be rotated by rotation of the housing in either direction when mounted in a well and the housing connected to a drill string and the shaft connected to a bit. In normal operation, during drilling, the housing is disengaged to permit the shaft to rotate relative to the housing.

Abstract: The catalyst of this invention is composed of an exchanged zeolite of the faujasite type composited with a matrix composed of clay, alumina and silica added as sodium silicate, the added silica being in the range of about 0.5% to less than about 3.5% based on the composite catalyst on a volatile free basis.

Abstract: This invention relates to exchanged ammoniated cogels having improved catalytic activity and process for producing the same.

Abstract: This invention relates to hydrothermally treated silica-alumina cogels resulting in a reduction in the NH.sub.4 content of the gel and the employment of such gels as cracking catalysts.

Abstract: This invention relates to hydrothermal treatment of silica-alumina cogels resulting in a reduction in the NH.sub.4 content of the gel and the generation of a gamma crystal phase and the employment of such gels as cracking catalysts.

Abstract: This invention relates silica-alumina cogels containing a crystalline phase and to hydrothermally treatment of silica-alumina cogels resulting in generation of a crystalline phase in the gel and the employment of such crystallized gels as hydrocarbon conversion catalysts.

Abstract: This invention relates to alpha (Si, Al)O.sub.4 crystalline complex, and to silica-alumina gel and crystalline alumino silicate host containing said alpha (Si, Al)O.sub.4 complex; both gels and crystalline alumina silicates containing a novel crystalline phase resulting from the hydrothermal treatment of the host (Si, Al)O.sub.4 complexes, both amorphous gel and crystalline alumino silicates, in the presence of rare earth cations.

Abstract: An in-hole motor drill assembly has the rotor of the motor connected to the drill bit by a slidable rotary drive connection, and normally disengaged torque transmitting members are engageable, if desired, to lock the bit and motor housing together for rotation of the bit by rotation of the motor housing. The torque transmitting members also interlock to prevent disengagement when an upward pull is applied during rotation of the bit.

Abstract: This invention relates to an improvement in the production of zeolites, particularly, zeolites of the faujasite type, employing clay based seeds derived from natural halloysite.

Abstract: This invention relates to zeolites of the faujasite type generally referred to as X or Y zeolites which contain both aluminum and NH.sub.4 in exchange position and catalysts employing the same.The zeolite of our invention is derived from the sodium form of the zeolite by first exchanging the sodium form with an aluminum ion to replace a substantial portion of the sodium and further reducing the sodium content of the zeolite by exchange with an ammonium ion.

Abstract: A fluid lubricated bearing assembly for use with an in-hole fluid motor has a housing and a shaft supported in the housing by a plurality of stacked adjustable bearings, through which thrust is transmitted to the shaft from a single thrust transfer point in the housing. The thrust bearings are individually adjustable to eliminate tolerance and thrust elements transfer load from the housing to the bearings from the single thrust transfer point. In the preferred form, the thrust elements include a flow restrictor sleeve in thrust transmission relation with bearings at opposite sides thereof. The flow restrictor sleeve cooperates with a companion flow restrictor sleeve on the shaft to limit the flow of fluid through the bearings from the motor. Radial contact bearings at opposite ends of the flow restrictor support the flow restrictor sleeves to minimize wear and resist bending forces applied radially of the sleeves.

Abstract: Exchanged zeolite of the faujasite type is produced by exchanging the sodium zeolite at super atmospheric pressures at temperatures below about 500.degree. F. with salt solutions in ratios of cations in excess of an equivalent of the cation per equivalent of the sodium in the zeolite.

Abstract: This invention relates to an improvement in the abrasion resistance of catalysts formulated from a mixture of an exchanged zeolite of the faujasite type, hydrated alumina and ammonium polysilicate or silica sol.

Abstract: An in-hole, fluid driven motor has a stator and a rotor to drive a bore hole drilling bit. The bit is connected to the rotor by a drive shaft rotatable in a bearing housing connected to the stator, and drilling fluid flows through the drive shaft and exits through the bit. Radial and thrust bearings include a first bearing which transmits thrust from the housing to the bit, while drilling, and a second bearing which transmits thrust to the housing from the shaft, when the bit is off the bottom of the hole. An adjustable lock nut is connected to the drive shaft and a ported cap which connects the drive shaft to a connecting rod coupled with the rotor, and permits alternate unloading of the first and second bearings and the elimination of increased bearing tolerances as wear occurs.

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

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.