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Inventor:
Robison; Clark E.
Address:
Plano, TX
No. of patents:
8
Patents:












Patent Number Title Of Patent Date Issued
6394181 Self-regulating lift fluid injection tool and method for use of same May 28, 2002
A self-regulating lift fluid injection tool (100) adapted for placement within production tubing (30). The tool (100) has a control valve (126) that controls the rate of injection of a lift fluid (102) into the formation fluids (104) being produced through the production tubing (30).
6343649 Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation February 5, 2002
A system of downhole communication and control is provided in methods and associated apparatus for data retrieval, monitoring and tool actuation. In a described embodiment, an item of equipment installed in a tubular string has a first communication device associated therewith. A tool co
6298919 Downhole hydraulic path selection October 9, 2001
A method of servicing a well and an associated well system provide convenient downhole hydraulic path selection. In a described embodiment, a hydraulic path selector is preconfigured for selection of a desired hydraulic path set, and then the selector is conveyed into a tubular strin
6286596 Self-regulating lift fluid injection tool and method for use of same September 11, 2001
A self-regulating lift fluid injection tool (100) adapted for placement within production tubing (30). The tool (100) has a control valve (126) that controls the rate of injection of a lift fluid (102) into the formation fluids (104) being produced through the production tubing (30).
6150601 Method and apparatus for generating electric power downhole November 21, 2000
Electric power is generated downhole in a well using a thermoelectric device. A temperature gradient or differential .DELTA.T present in the well is applied to the thermoelectric device to produce a voltage potential across the output terminals of the device. The thermoelectric devic
5479991 Reeled tubing deployed packer with control line bypass January 2, 1996
A packer for a subterranean oil and/or gas well. The packer has a control signal bypass passage incorporated in the packer body. The control signal bypass passage may be opened and closed via reeled tubing to selectively allow and disallow passage of a control signal through the packer.
5390742 Internally sealable perforable nipple for downhole well applications February 21, 1995
A longitudinally spaced series of tubular nipple structures are installed in a well flow conductor operatively extended through a subterranean well bore. Each nipple structure has a thinned-wall, increased interior diameter longitudinal section through which a plurality of fluid flow
5211241 Variable flow sliding sleeve valve and positioning shifting tool therefor May 18, 1993
A sliding sleeve valve useful in a flow conduit to control and vary area of openings open for flow through the valve. The valve has a sleeve having a through flow passage and the sleeve is moveable between open, intermediate and closed positions. When the sleeve is in open position, the










 
 
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