Robert G Roach

US Patent:

44650949, Aug 14, 1984

Filed:

Jan 13, 1982

Appl. No.:

6/339240

Inventors:

Donald F. Huffhines - Richardson TX
Robert E. Roach - Duncanville TX

Assignee:

Mobil Oil Corporation - New York NY

International Classification:

F17D 100

US Classification:

137557

Abstract:

An apparatus is provided wherein one air supply is used to supply compressed air for a plurality of multi-size seismic pulse generators.

US Patent:

50167120, May 21, 1991

Filed:

Mar 6, 1990

Appl. No.:

7/489111

Inventors:

Alvin S. Cullick - Dallas TX
Robert E. Roach - Dallas TX

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

F21B 4706
F21B 4709
F21B 4708

US Classification:

166250

Abstract:

A method and apparatus are provided for locating a solvent injection apparatus within a natural gas wellbore to reduce the deposition of hydrocarbonaceous solids which are at least partially soluble in the solvent.

US Patent:

51262746, Jun 30, 1992

Filed:

Mar 6, 1990

Appl. No.:

7/489112

Inventors:

George E. McIver - Dallas TX
Robert E. Roach - Dallas TX

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

G01N 500
G01N 1100
G01N 3102
G01N 3300

US Classification:

436140

Abstract:

The diamondoid compound content of a hydrocarbon gas sample stream is measured in a process and apparatus for the controlled precipitation and collection of diamondoid compounds.

US Patent:

45494991, Oct 29, 1985

Filed:

Mar 12, 1984

Appl. No.:

6/588429

Inventors:

Donald F. Huffhines - Richardson TX
Robert E. Roach - Duncanville TX

Assignee:

Mobil Oil Corporation - New York NY

International Classification:

B63B 2166

US Classification:

114244

Abstract:

A floatation apparatus is disclosed wherein a buoy for maintaining the near surface position of marine equipment is mounted on a hydrodynamically advantageous V-shaped frame to reduce frictional drag associated with towing surface equipment.

US Patent:

48844381, Dec 5, 1989

Filed:

Oct 20, 1988

Appl. No.:

7/260350

Inventors:

Timothy A. Jones - Carrollton TX
Thomas J. Kaluza - Dallas TX
Robert E. Roach - Dallas TX

Assignee:

Mobil Oil Corporation - New York NY

International Classification:

E21B 4900

US Classification:

73153

Abstract:

A method and apparatus for determining certain fluid flow parameters for naturally fractured media. Specifically provided is a method and apparatus to measure the flow rate, pressure drop, fracture aperture, fluid supply temperature and sample-loading force. A naturally fractured media core sample is obtained for testing and cut into a pair of core blocks having mating fractured forces. The fracture face of the core sample prepared in this manner, yields a more representative surface for flow study, eliminating the problem arising from the fact that most fractures cut across round core samples, resulting in an unnatural, elliptical surface for evaluation. A flow cell assembly is provided to receive the pair of core blocks and secure them during the measurement operation. The flow cell assembly permits adjustment of the fracture aperture to facilitate comprehensive evaluation.