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James M. Upchurch
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Sugar Land, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Hydraulically set packer useful with independently set straddle pac...
Patent number
5,058,673
Issue date
Oct 22, 1991
Schlumberger Technology Corporation
Laurent E. Muller
E21 - EARTH DRILLING MINING
Information
Patent Grant
Perforating and testing apparatus including a microprocessor implem...
Patent number
5,050,675
Issue date
Sep 24, 1991
Schlumberger Technology Corporation
James M. Upchurch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Perforating and testing apparatus including a microprocessor implem...
Patent number
4,971,160
Issue date
Nov 20, 1990
Schlumberger Technology Corporation
James M. Upchurch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mud solids immune clean fluid compensating system
Patent number
4,923,010
Issue date
May 8, 1990
Schlumberger Technology Corporation
James M. Upchurch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Multiple well tool control systems in a multi-valve well testing sy...
Patent number
4,915,168
Issue date
Apr 10, 1990
Schlumberger Technology Corporation
James M. Upchurch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Multiple well tool control systems in a multi-valve well testing sy...
Patent number
4,896,722
Issue date
Jan 30, 1990
Schlumberger Technology Corporation
James M. Upchurch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Well tool control system and method
Patent number
4,856,595
Issue date
Aug 15, 1989
Schlumberger Technology Corporation
James M. Upchurch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Well tool control system and method
Patent number
4,796,699
Issue date
Jan 10, 1989
Schlumberger Technology Corporation
James M. Upchurch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Permanent completion tubing conveyed perforating system
Patent number
4,633,945
Issue date
Jan 6, 1987
Schlumberger Technology Corporation
James M. Upchurch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tubing isolation disc valve
Patent number
4,609,005
Issue date
Sep 2, 1986
Schlumberger Technology Corporation
James M. Upchurch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Full bore sampler valve
Patent number
4,576,234
Issue date
Mar 18, 1986
Schlumberger Technology Corporation
James M. Upchurch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pressure-activated well perforating apparatus
Patent number
4,560,000
Issue date
Dec 24, 1985
Schlumberger Technology Corporation
James M. Upchurch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Full bore sampler valve apparatus
Patent number
4,553,598
Issue date
Nov 19, 1985
Schlumberger Technology Corporation
Dale E. Meek
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drill stem testing apparatus with multiple pressure sensing ports
Patent number
4,553,428
Issue date
Nov 19, 1985
Schlumberger Technology Corporation
James M. Upchurch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pressure responsive perforating and testing system
Patent number
4,509,604
Issue date
Apr 9, 1985
Schlumberger Technology Corporation
James M. Upchurch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Annulus pressure controlled reversing valve
Patent number
4,474,242
Issue date
Oct 2, 1984
Schlumberger Technology Corporation
James M. Upchurch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pressure controlled reversing valve
Patent number
4,403,659
Issue date
Sep 13, 1983
Schlumberger Technology Corporation
James M. Upchurch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Inflatable packer drill stem testing system
Patent number
4,320,800
Issue date
Mar 23, 1982
Schlumberger Technology Corporation
James M. Upchurch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pressure apportioning valve apparatus for use with multiple packers
Patent number
4,069,866
Issue date
Jan 24, 1978
Schlumberger Technology Corporation
James M. Upchurch
E21 - EARTH DRILLING MINING