Abstract: A drive shaft assembly for a down hole drilling motor is provided. The drive shaft assembly includes a drive shaft having a first end portion engaging a first housing and a second end portion, engaging a second housing. The first end portion and the first housing form the first constant velocity joint and the second end portion and the second housing form the second constant velocity joint of the drive shaft assembly. Each end portion including a base surface having a pair of prongs extending away from the base surface and a cylindrical side wall having a plurality of ball bearings held in a plurality of circumferentially spaced pockets. Each housing includes a cavity to retain respective end portions of the drive shaft. An inner side wall of each housing includes a plurality of cylindrical grooves to receive the plurality of ball bearings to transfer torque.

Abstract: The present disclosure provides a test system including a dynamometer to test downhole drilling tools. The system includes a torque load application tool, a thrust load application tool, and a side or radial load application tool to test downhole drilling tool.

Abstract: A drive shaft assembly for a downhole drilling motor includes a drive shaft having a first end portion engaging a first housing and a second end portion engaging a second housing. The first end portion and the first housing form the first constant velocity joint and the second end portion and the second housing form the second constant velocity joint of the drive shaft assembly. Each end portion including a base surface having a pair of prongs extending away from the base surface and a cylindrical side wall having a plurality of ball bearings held in a plurality of circumferentially spaced pockets. Each housing includes a cavity to retain respective end portions of the drive shaft. An inner side wall of each housing includes a plurality of cylindrical grooves to receive the plurality of ball bearings to transfer torque.

Abstract: A drive shaft assembly for a down hole drilling motor is provided. The drive shaft assembly includes a drive shaft having a first end portion engaging a first housing and a second end portion, engaging a second housing. The first end portion and the first housing form the first constant velocity joint and the second end portion and the second housing form the second constant velocity joint of the drive shaft assembly. Each end portion including a base surface having a pair of prongs extending away from the base surface and a cylindrical side wall having a plurality of ball bearings held in a plurality of circumferentially spaced pockets. Each housing includes a cavity to retain respective end portions of the drive shaft. An inner side wall of each housing includes a plurality of cylindrical grooves to receive the plurality of ball bearings to transfer torque.

Abstract: A downhole motor having a motor section, a drive shaft section, and an output shaft section. The output shaft section has a rotatable output shaft with a first end and a second end. A first thrust bearing assembly proximal to the first end of the output shaft, a second thrust bearing assembly proximal to second end to said output shaft. A radial bearing assembly disposed between the first and second thrust bearing assemblies.

Abstract: A downhole motor having a motor section, a drive shaft section, and an output shaft section. The output shaft section has a rotatable output shaft with a first end and a second end. A first thrust bearing assembly proximal to the first end of the output shaft, a second thrust bearing assembly proximal to second end to said output shaft. A radial bearing assembly disposed between the first and second thrust bearing assemblies.

Abstract: A downhole motor having a motor section, a drive shaft section, and an output shaft section. The output shaft section has a rotatable output shaft with a first end and a second end. A first thrust bearing assembly is located proximal to the first end of the output shaft, and a second thrust bearing assembly is located proximal to the second end of the output shaft. A radial bearing assembly is disposed between the first and second thrust bearing assemblies.

Abstract: A downhole motor having a motor section, a drive shaft section, and an output shaft section, the output shaft section having a rotatable output shaft with a first end and a second end, a first thrust bearing assembly proximal to the first end of said output shaft, a second thrust bearing assembly proximal to second end to said output shaft and a radial bearing assembly disposed between the first and second thrust bearing assemblies.

Abstract: A process for converting natural gas to a hydrocarbon liquid wherein a stream of natural gas at a selected pressure is mixed with a hot gas stream which is at a temperature sufficient to affect a chemical reaction and form an intermediate product stream containing reactive hydrocarbons, the intermediate product stream being quenched and the quenched intermediate product stream being reacted in a catalytic liquification zone to produce a hydrocarbon liquid.

Abstract: A process for converting natural gas to a liquid hydrocarbon wherein the natural gas feed stream is admixed with a hot gas stream, the hot gas stream being at a temperature sufficient to effect a chemical reaction forming an intermediate product stream containing reactive hydrocarbons, the intermediate product stream being quenched and subsequently reacted in a liquefaction zone to produce hydrocarbon liquids, hydrocarbon gases from the liquefaction zone being recycled to the natural gas feed stream, hydrocarbon liquid product being recovered from the liquefaction zone.