Louis Edward Bernard

Author:

Louis Bernard

ISBN #:

2550403177

Author:

Louis Bernard

ISBN #:

2890373371

US Patent:

5251699, Oct 12, 1993

Filed:

May 26, 1992

Appl. No.:

7/888092

Inventors:

Hon C. Lau - Houston TX
Louis Bernard - Houston TX

Assignee:

Shell Oil Company - Houston TX

International Classification:

E21B 4304

US Classification:

166278

Abstract:

An improved gravel packing process is provided in which a gravel pack slurry is thickened with succinoglycan and the slurry further comprises an amount of breaker effective to result in 80 percent settlement of sand from the slurry after a time period larger than about one hour and shorter than about three hours.

US Patent:

5392855, Feb 28, 1995

Filed:

May 16, 1994

Appl. No.:

8/245144

Inventors:

Louis Bernard - Houston TX
Hon C. Lau - Houston TX
David A. Cole - Metairie LA

Assignee:

Shell Oil Company - Houston TX

International Classification:

E21B 4322
E21B 4326
E21B 4327
E21B 4304

US Classification:

166278

Abstract:

A method is provided to produce a polymer-thickened solution for injection into a wellbore, the method comprising the steps of: a) providing an aqueous polymer solution or suspension; b) dispersing the aqueous polymer solution or suspension into an aqueous stream not containing any of the polymer through nozzles wherein the nozzles have an opening of no larger than a circle of about 1/8-inch diameter; c) passing the aqueous stream containing the polymer solution or suspension through a static mixer having a residence time of at least about 0. 5 seconds; and d) injecting the polymer-thickened solution into a wellbore. The polymer-thickened solution prepared according to the present invention may be used as a fracturing fluid, combined with gravel pack sand and used for gravel packing a wellbore, used as an acid treatment composition or used as a fluid loss composition.

US Patent:

5460225, Oct 24, 1995

Filed:

Jul 18, 1994

Appl. No.:

8/277378

Inventors:

Hon C. Lau - Houston TX
Louis Bernard - Houston TX

Assignee:

Shell Oil Company - Houston TX

International Classification:

E21B 4304

US Classification:

166278

Abstract:

A method is provided for placement of a gravel pack within perforations extending into a formation from a wellbore, the method comprising the steps of: a) injecting a pad fluid into the perforations, the pad fluid having a viscosity, at an ambient temperature of the perforations, of less than about 3 cp (measured at a shear rate of 100 sec. sup. -1), at a rate of at least 1/4 gpm per perforation for at least 5 minutes; and b) injecting a gravel slurry into the perforations at a rate of at least 1/4 gpm per perforation, the gravel slurry comprising a carrier fluid, between about one quarter and about 5 pounds of gravel pack solids per gallon of carrier fluid, and the carrier fluid comprising an amount of thickener effective to impart a viscosity to the carrier fluid of more than about 3 centipoise (measured at a shear rate of about 100 sec. sup. -1) at the ambient temperature of the perforations and at least an amount of thickener effective to result in laminar flow of slurry into the perforation at the rate at which it is injected.

US Patent:

H1685, Oct 7, 1997

Filed:

Jul 7, 1995

Appl. No.:

8/499156

Inventors:

Hon Chung Lau - Houston TX
Arthur Herman Hale - Houston TX
Louis Bernard - Houston TX

Assignee:

Shell Oil Company - Houston TX

International Classification:

C09K 704

US Classification:

507140

Abstract:

Zinc oxide and zirconium oxide are used as weighting materials for water and oil based drilling fluids for horizontal wells.