1
William N Schoeffler: Directional drilling apparatus. John D Jeter, April 2, 2002: US06364034 (150 worldwide citation)

The apparatus has a housing which is secured to the lower end of a drilling motor body and carries an arbor that is secured to the output shaft of the motor. The arbor has three segments serially connected by gimbals. The upper segment is axially fixed by the bearings of the motor and has a lower en ...


2
David A Buck: Compensating jaw assembly for power tongs. John D Jeter, December 1, 1987: US04709599 (94 worldwide citation)

A pipe die linkage for power tongs has a preloaded spring between a force producing cam follower and pipe die of such strength and preload that the die serrations will be forced to adequately bite into the pipe. Bias resisted overtravel will prevent pipe crushing at high torque levels, as the cam fo ...


3
Vernon J Bouligny Jr, Michael W Olivier: Pipe string handling apparatus and method. Frank&apos s Casing Crewand Rental Tools, John D Jeter, May 29, 2001: US06237684 (85 worldwide citation)

A support table with an upwardly extending tubular neck engages the lower surface of the upper connector of the string to support the string while resting on a floor-level support. The neck is small enough for an elevator to close around the neck and still engage the outer portion of the lower surfa ...


4
Lee Matherne Jr: Simulator for pipe welding. John D Jeter, October 20, 1998: US05823785 (83 worldwide citation)

A floor standing base supports a work holding manipulator table that is adapted to secure a vertical length of pipe for welding at a prepared juncture in the mounted pipe. The manipulator table is attached to the stand by a gimbal arrangement that allows it to tilt relative to a vertical axis a limi ...


5
William N Schoeffler: Directional drilling tool. John D Jeter, January 23, 1990: US04895214 (66 worldwide citation)

An improved directional drilling tool permits changing the downhole drilling assembly between straight and directional drilling configuration by manipulation of conventional drilling fluid flow controls at the surface. A housing, with stabilizer features, shrouds a shaft which functions as an extens ...


6
John D Jeter: Drilling enhancement tool. John D Jeter, April 4, 1989: US04817739 (53 worldwide citation)

A drilling fluid pulse generator for use above a drill bit to produce pulsations in drilling fluid flow. An autocycling valve briefly interrupts the flow of fluid to bit jets to reduce the effective hydrostatic pressure at the drilling face and to hydraulic energy in the drill string to thoroughly s ...


7
William N Schoeffler: Remote control selector valve. Petro Design, John D Jeter, April 7, 1987: US04655289 (52 worldwide citation)

A control system for use on fluid conducting pipe strings in earth boreholes to permit cycling of fluid flow between preselected flow rates to change conditions downhole as a result of surface exercise of fluid flow controls. A resulting change of state downhole is indicated by a change in fluid flo ...


8
Thomas E Falgout Sr, William N Schoeffler: Drilling motor deviation tool. Team Construction and Fabrication, John D Jeter, March 14, 1989: US04811798 (45 worldwide citation)

A body and driveshaft extension for down hole drilling motors to allow the down hole assembly to operate as part of a drill string responsive to selected manipulations of the drilling fluid flow rate, carried out at the earth surface, to assume either a straight hole drilling configuration or a dire ...


9
W Gardner Rhea Jr: Multifunction catheter. John D Jeter, June 29, 1999: US05916153 (45 worldwide citation)

A modified Foley type catheter has a pressure sensor near the insertion end, an inflatable balloon, a temperature sensor, a light emitter, and a blood oxygen level detector near the light emitting means, all molded into the catheter tube wall. The oxygen level sensor is arranged to receive light ene ...


10
Vernon J Bouligny Jr: Flush mounted self aligning spider. Frank s Casing Crew and Rental Tools, John D Jeter, July 18, 2000: US06089338 (42 worldwide citation)

A spider for use within the rotary table opening has all movable elements flush with or below the rig floor. The conventional wedge shaped slips are supported and aligned by a slip carrier that has a spherical outer surface that slideably mates with a spherical bowl inner surface in the spider such ...