Jack L Cowan

US Patent:

7199085, Apr 3, 2007

Filed:

May 6, 2004

Appl. No.:

10/842002

Inventors:

Tony Rea - Houston TX, US
Jack Cowan - Lafayette LA, US
Tommy F. Brookey - Edmond OK, US
Frederick B. Growcock - Houston TX, US
Mike Kilchrist - Lafayette LA, US

Assignee:

MASI Technologies, Inc. - Houston TX

International Classification:

C09K 8/60

US Classification:

507202, 507102

Abstract:

The present invention generally relates to improved clay-based compositions comprising colloidal or colloidal-like phases (e. g. , emulsions, aphrons) and methods of using those compositions. The compositions generally comprise an aqueous continuous phase, one or more palygorskite-sepiolite group clays, one or more surfactants, aphrons and optionally one or more Aphron Stabilizers. The compositions of the present invention are capable of being used in high-pressure applications.

US Patent:

50715755, Dec 10, 1991

Filed:

Dec 10, 1990

Appl. No.:

7/624631

Inventors:

Roy F. House - Houston TX
Andree H. Harrington - Lafayette LA
Jack C. Cowan - Lafayette LA

Assignee:

Venture Innovations, Inc. - Lafayette LA

International Classification:

C09K 700

US Classification:

507104

Abstract:

The invention provides well working fluid compositions containing oat hulls ground to certain particle size ranges to decrease the seepage loss of the fluid to fluid permeable formations contacted by the compositions. Also provided is a seepage loss additive comprising the ground oat hulls in combination with one or more of ground corn cobs, hydrophobic organophilic water wettable cotton, ground citrus pulp, and ground cotton burrs.

US Patent:

48430480, Jun 27, 1989

Filed:

Nov 23, 1987

Appl. No.:

7/124171

Inventors:

Roy F. House - Houston TX
Victor M. Granquist - Lafayette LA
Jack C. Cowan - Lafayette LA

Assignee:

Venture Innovations, Inc. - Lafayette LA

International Classification:

C09K 706

US Classification:

501148

Abstract:

Organophilic clays which are effective fluid loss control additives for oil base well-working fluids are prepared from a swelling smectite clay and one or more phosphatides. Preferred phosphatides are phosphoglycerides obtained from vegetable oils, most preferably commercial lecithin such as soybean lecithin. The organophilic clays may also contain quaternary ammonium compounds.

US Patent:

49607405, Oct 2, 1990

Filed:

May 22, 1989

Appl. No.:

7/355329

Inventors:

Roy F. House - Houston TX
Victor M. Granquist - Beaufort SC
Jack C. Cowan - Lafayette LA

Assignee:

Venture Innovations, Inc. - Houston TX

International Classification:

C04B 3302

US Classification:

501148

Abstract:

Organophilic clays which are effective fluid loss control additives for oil base well-working fluids are prepared from a swelling smectite clay and one or more phosphatides. Preferred phosphatides are phosphoglycerides obtained from vegetable oils, most preferably commercial lecithin such as soybean lecithin. The organophilic clays may also contain quaternary ammonium compounds.

US Patent:

62587552, Jul 10, 2001

Filed:

Dec 28, 1998

Appl. No.:

9/222293

Inventors:

Roy F. House - Houston TX
Jack C. Cowan - Lafayette LA

Assignee:

Venture Innovations, Inc. - Lafayette LA

International Classification:

C09K 702
C08B 3708

US Classification:

507110

Abstract:

Disclosed are a process for the preparation of pseudoplastic, shear thinning chitosan-containing fluids, and a method of enhancing the thermal stability of such fluids. Pseudoplastic fluids useful oil and/or gas wells, particularly drilling fluids, drill-in fluids, workover fluids, completion fluids, perforating fluids, filter cake removal fluids, various pills, and the like, are prepared by solublizing chitosan in an acidic solution and thereafter raising the pH above about 7. 0 by the addition of a basic compound thereto. The thermal stability of such fluids is enhanced by incorporating into the fluids certain aldose or ketose sugars, oligosaccharides of such sugars, and mixtures thereof, optionally together with a water soluble bisulfite compound.

US Patent:

50045539, Apr 2, 1991

Filed:

Oct 16, 1989

Appl. No.:

7/421751

Inventors:

Roy F. House - Houston TX
Andree H. Wilkinson - Lafayette LA
Jack C. Cowan - Lafayette LA

Assignee:

Venture Innovations, Inc. - Lafayette LA

International Classification:

C09K 700

US Classification:

252 851

Abstract:

The invention provides well working fluid compositions containing oat hulls ground to certain particle size ranges to decrease the seepage loss of the fluid to fluid permeable formations contacted by the compositions. Also provided is a seepage loss additive comprising the ground oat hulls in combination with one or more of ground corn cobs, hydrophobic organophilic water wettable cotton, ground citrus pulp, and ground cotton burrs.