Leon R Robinson

US Patent:

40875148, May 2, 1978

Filed:

Nov 10, 1975

Appl. No.:

5/630556

Inventors:

Leon Robinson - Houston TX
Hans F. Bauer - Diamond Bar CA

Assignee:

Occidental Petroleum Corporation - Los Angeles CA

International Classification:

C01B 5700
C01B 3120

US Classification:

423461

Abstract:

A process for reducing the sulfur content of char by means of a basic molten bath of an alkali metal or alkaline earth metal salt of a hydroxyaryl or an alcohol.

US Patent:

45374570, Aug 27, 1985

Filed:

Feb 4, 1985

Appl. No.:

6/697689

Inventors:

Albert P. Davis - Houston TX
Leon H. Robinson - Houston TX

Assignee:

Exxon Production Research Co. - Houston TX

International Classification:

H01R 300

US Classification:

339117P

Abstract:

A connector 10 is disclosed which is suited for use in effecting an electrical connection between separate conductor bundles 12, 16 in adjacent sections of a threadably sectioned conduit. The connector 10 is especially well suited for use in providing electrical continuity across a tool joint in a drill string. The connector 10 has first and second portions 20, 22 each adapted for placement in a corresponding connection portion of two connectable lengths of conduit. The first and second portions 20, 22 form a pin and box connection. Corresponding contacts 46, 80 on the first and second portions 20, 22 assume a conductive relationship in response to connection of the conduit. The contacts 46, 80 of each connector portion 20, 22 are radially symmetric about the axis of the conduit and are axially displaced one from the other. The contacts 46, 80 within the assembled connector 10 are isolated from the conduit environment. Apparatus is provided for maintaining a dielectric fluid in the region surrounding the contacts 46, 80 to ensure electrical insulation of the connector 10.

US Patent:

42509742, Feb 17, 1981

Filed:

Sep 25, 1978

Appl. No.:

5/945286

Inventors:

Joe K. Heilhecker - Houston TX
Leon H. Robinson - Houston TX
Beldon A. Peters - Houston TX

Assignee:

Exxon Production Research Company - Houston TX

International Classification:

E21B 2108

US Classification:

175 48

Abstract:

Abnormal drilling conditions are detected by monitoring mud volume of the mud system or rate of change of the mud volume. In one embodiment, makeup mud is automatically added to the system as solids are removed from the mud. Abnormal conditions are indicated by when the rate of makeup mud addition differs from the rate of solids removal. The mud system is maintained at a substantially constant volume by means of tanks specially constructed to provide a small mud/air interface.

US Patent:

42719089, Jun 9, 1981

Filed:

Jan 29, 1980

Appl. No.:

6/116517

Inventors:

Leon H. Robinson - Houston TX
Adelbert Barry - Houston TX
Jerry M. Speers - Houston TX

Assignee:

Exxon Production Research Company - Houston TX

International Classification:

E21B 1700
E21B 4712

US Classification:

166315

Abstract:

An improved apparatus to store an insulated electrical conductor cable in a overlapped configuration within a drill pipe includes a track attached to the drill pipe to guide a lower cable guide so that the overlapped portions of conductor cable will not snarl or twist during rotary drilling operations. To insure against entanglement, further restriction of rotation may be gained by additionally tracking the lower cable guide on a tensioned portion of the conductor cable which extends from a subsurface instrument package upwardly to an upper cable guide. A method for installing this improved apparatus is also disclosed.

US Patent:

40532852, Oct 11, 1977

Filed:

Jan 15, 1976

Appl. No.:

5/649355

Inventors:

Leon Robinson - Houston TX
Allan Sass - Los Angeles CA

Assignee:

Occidental Research Corporation - La Verne CA

International Classification:

C10L 910
C10B 5700

US Classification:

44 1F

Abstract:

This invention covers a process for reducing the sulfide sulfur content of char by treatment with a gaseous mixture of carbon dioxide and H. sub. 2 O.

US Patent:

43753108, Mar 1, 1983

Filed:

Apr 3, 1981

Appl. No.:

6/250975

Inventors:

Leon H. Robinson - Houston TX
Jerry M. Speers - Houston TX
Adelber Barry - Houston TX

Assignee:

Exxon Production Research Co. - Houston TX

International Classification:

H01R 13625
H01R 1704

US Classification:

339 88R

Abstract:

A self-locking cable connector especially useful in wireline data telemetry operations or wellbore logging comprises a plug and receptacle. A locking sleeve assembly acts to lock a key on the plug into a circumferential keyway on the receptacle, when the plug is inserted into the receptacle to form an electrical connection. Seals keep the connectors isolated from the drilling fluid which is circulated during rotary drilling. The cable connector may pass through rig sheaves and may be spooled with the cable.

US Patent:

39571181, May 18, 1976

Filed:

Sep 18, 1974

Appl. No.:

5/507020

Inventors:

Adelbert Barry - Houston TX
Leon H. Robinson - Houston TX
Jerry M. Speers - Houston TX

Assignee:

Exxon Production Research Company - Houston TX

International Classification:

E21B 700
E21B 4712

US Classification:

166315

Abstract:

A cable system for wellbore telemetry includes a cable anchored at a subsurface location in a rotary drill string, guide assemblies for maintaining the cable in a looped configuration, and a cable gripping device for maintaining a portion of the cable in tension. Preferably the cable is provided with a novel releasable connector and latch assembly which (1) permits the cable to be electrically connected to a subsurface instrument and anchored to the drill string, (2) permits the cable to be maintained in tension, and (3) is releasable by manipulation of the cable at the surface.

US Patent:

44164947, Nov 22, 1983

Filed:

Oct 6, 1980

Appl. No.:

6/194098

Inventors:

Larry A. Watkins - Houston TX
Leon H. Robinson - Houston TX

Assignee:

Exxon Production Research Co. - Houston TX

International Classification:

H01R 464

US Classification:

339 15

Abstract:

Apparatus for downhole storage of an electrical conductor within a drill string in a borehole. The conductor is stored as a coil in a flexible storage means. The apparatus is desirably used to eliminate the short lengths of cable and the associated connectors which are normally added with each new section of drill pipe added to the drill string. Because the device is flexible, it may be used in deviated drilling.