Greg R Garrison

US Patent:

6814145, Nov 9, 2004

Filed:

Jun 14, 2002

Appl. No.:

10/172266

Inventors:

Jack Maberry - Paris, FR
Greg Garrison - Katy TX
Andre Garnier - Katy TX

Assignee:

Schlumberger Technology Corporation - Sugar Land TX

International Classification:

E21B 3313

US Classification:

166294, 166295, 106719, 507903, 507114

Abstract:

A plugging fluid for plugging a subterranean formation zone surrounding a drill hole comprises an emulsion comprising a dispersed aqueous phase containing an aqueous base and a continuous hydrophobic phase containing a polymer consisting of a grafted cellulose ether derivative, a surfactant and a crosslinking activator of the polymer. The polymer is preferably 2-hydroxyethyl cellulose grafted with vinyl phosphonic acid. Upon shearing, preferably through the drilling bit, the emulsion inverts so that the rupture of the emulsion droplets releases the crosslinking activator into the water phase thus forming a gel structure.

US Patent:

6818598, Nov 16, 2004

Filed:

Jun 14, 2002

Appl. No.:

10/172259

Inventors:

Jack Maberry - Paris, FR
Greg Garrison - Katy TX
Andre Garnier - Katy TX

Assignee:

Schlumberger Technology Corporation - Sugar Land TX

International Classification:

C09K 702

US Classification:

507216, 166294, 166295, 166300, 175 72, 507114, 507237, 507241, 507269, 507273, 507277, 507903

Abstract:

A plugging fluid for plugging a subterranean formation zone surrounding a drill hole comprises an emulsion comprising a dispersed aqueous phase containing an aqueous base and a continuous hydrophobic phase containing a polymer consisting of a grafted cellulose ether derivative, a surfactant and a crosslinking activator of the polymer. The polymer is preferably 2-hydroxyethyl cellulose grafted with vinyl phosphonic acid. Upon shearing, preferably through the drilling bit, the emulsion inverts so that the rupture of the emulsion droplets releases the crosslinking activator into the water phase thus forming a gel structure.

US Patent:

6955220, Oct 18, 2005

Filed:

Dec 21, 2001

Appl. No.:

10/029333

Inventors:

Jack Maberry - Katy TX, US
Greg Garrison - Katy TX, US
Stephan Harris - Mandeville LA, US
Andre Garnier - Katy TX, US

Assignee:

Schlumberger Technology Corporation - Sugar Land TX

International Classification:

E21B033/13

US Classification:

166292, 166293, 166901, 106713

Abstract:

The present invention provides improved well cementing methods for use in cold environment, where the circulating temperature of the cement is typically within the range of 5 to 20 C. The improved well cementing methods include forming compositions that are essentially comprised of an aqueous fluid, a hydraulic cement binder and a set-accelerating admixture comprising an alkali or alkaline earth metal nitrate and an alkali or alkaline earth metal nitrite.

US Patent:

20200190391, Jun 18, 2020

Filed:

Feb 18, 2020

Appl. No.:

16/794211

Inventors:

Greg Garrison - Katy TX, US

International Classification:

C09K 8/46
C04B 28/02
C04B 40/00

Abstract:

This invention relates to using a unique blend of components of a composite cement and subjecting them to a rotary mill process using variably sized and shaped media to reduce the blends' particle size. The invention is novel in that it mills the blended materials together to achieve reduced particle size, increased particle surface area, higher compressive strength and lower permeability. In one embodiment, the invention combines fly ash or other pozzolan material with a cement of any type at varying rations between 1% and 99%. In a further embodiment the invention combines fly ash or other pozzolan material at 60% with a cement of any type at 40%.

US Patent:

20170267583, Sep 21, 2017

Filed:

Mar 21, 2016

Appl. No.:

15/075198

Inventors:

Greg Garrison - Katy TX, US

International Classification:

C04B 18/08

Abstract:

This invention relates to using a unique blend of components of a composite cement and subjecting them to a rotary mill process using variably sized and shaped media to reduce the blends' particle size. The invention is novel in that it mills the blended materials together to achieve reduced particle size, increased particle surface area, higher compressive strength and lower permeability. In one embodiment, the invention combines fly ash or other pozzolan material with a cement of any type at varying rations between 1% and 99%.