Sandra L Berry

7231976, Jun 19, 2007

Nov 10, 2004

10/985458

Sandra L. Berry - Tomball TX, US
Kay E. Cawiezel - Fulshear TX, US

BJ Services Company - Houston TX

E21B 33/16
E21B 37/00
E21B 37/06
E21B 43/22
E21B 43/26
E21B 43/27

166291, 166300, 166304, 1663051, 166307, 1663082, 1663084, 166310, 166312, 507265, 507266, 507267, 507905, 507928, 507929, 507932, 507933

A method of treating a well consists of introducing into the wellbore a biodegradable fluid system containing a blend of lactic acid ester, such as ethyl lactate, and a fatty acid ester, such as methyl soyate. The fluid system may be further in the form of a microemulsion that is formed by combining a blend with one or more emulsifiers, an alcohol, and water. The fluid system may be used in displacement, well remediation and stimulation as well as additional, alternative applications such as the cleaning of surface and/or downhole equipment.

7392844, Jul 1, 2008

Nov 2, 2005

11/263848

Sandra L. Berry - Tomball TX, US
Kay E. Cawiezel - Fulshear TX, US

BJ Services Company - Houston TX

E21B 33/16
E21B 37/00
E21B 43/22
E21B 43/26

166291, 166304, 1663083, 1663084, 166312, 507265, 507267, 507905, 507928, 507929

A method of treating a well consists of introducing into the wellbore a biodegradable fluid system containing a fatty acid ester, such as methyl soyate. The fluid system may further contain a lactic acid ester, such as ethyl lactate, and/or a nonionic surfactant. The fluid system may be used in displacement, well remediation and stimulation as well as additional, alternative applications such as the cleaning of surface and/or downhole equipment.

7392845, Jul 1, 2008

Mar 23, 2006

11/388103

Sandra L. Berry - Tomball TX, US
Brian Beall - Spring TX, US

BJ Services Company - Houston TX

E21B 37/00
C09K 8/52

166300, 166304, 166312, 507203, 507261, 507266, 507905, 507929

A biodegradable water-in-synthetic oil base emulsion, effective in the removal of filter cakes, consists of an external phase of a surfactant emulsified in a paraffinic base oil. The emulsion is particularly effective in breaking-down the interfacial rheological properties of oil base mud and synthetic oil base mud filter cakes and acts as a demulsifier to break the water-in-oil emulsions present in such oil base and synthetic oil base muds.

7481273, Jan 27, 2009

Jun 18, 2007

11/820085

Paul H. Javora - Spring TX, US
Brian B. Beall - Spring TX, US
Mark A. Vorderburggen - Spring TX, US
Qi Qu - Spring TX, US
Sandra L. Berry - Tomball TX, US

BJ Services Company - Houston TX

E21B 37/00
C09K 8/52

166300, 166304, 166312, 507203, 507235, 507237, 507905, 507929

Fluid producing or injecting wells may be treated with a water-in-oil emulsion for the removal or inhibition of unwanted particulates, including pipe dope, asphaltenes and paraffins. In addition, such emulsions are effective in the displacement of oil base drilling muds and/or residues from such muds from wells. The emulsion may also be used to break the interfacial and/or rheological properties of oil base mud and synthetic oil base mud filter cakes, and act as a demulsifier to break the water-in-oil emulsion present in such oil base and synthetic oil base muds. The water-in-oil emulsions may optionally contain a dispersing agent as well as a surfactant.

8084402, Dec 27, 2011

Jul 24, 2007

11/880726

Sandra L. Berry - Tomball TX, US
Brian B. Beall - Spring TX, US
Joel L. Boles - Spring TX, US
Harold D. Brannon - Magnolia TX, US

Baker Huges Incorporated - Houston TX

C09K 8/60
C09K 8/32
E21B 43/26

507240, 507129, 1663051, 166307

An ionic liquid may be used to inhibit the swelling and/or disintegration of clay in a subterranean formation. A subterranean clay-containing formation may be treated with the ionic liquid by contacting the formation with a well treatment composition containing the ionic liquid dispersed or dissolved in a carrier fluid. Damage to the formation caused by contact with the well treating composition is reduced or substantially eliminated.

20050014654, Jan 20, 2005

Jul 18, 2003

10/623044

Qi Qu - Spring TX, US
Paul Javora - Spring TX, US
Joel Boles - Spring TX, US
Sandra Berry - Tomball TX, US

E21B043/00

507200000

A method of reclaiming a well completion brine solution by using an organic chelant that is capable of discriminating between (i) iron and non-zinc heavy metals; and (ii) calcium and zinc. The chelant contains a functional group selected from the group —COH or —PO(OH)Ror a salt or ester thereof, —C(O)—, —OE, —SE, —N═C(R)R, EO—N═C(R)R, —N(R)R, and —N(C(O)R)Rgroup optionally substituted with a —COOH or —PO(OH)R20 or a salt or ester thereof, —SE or —OE group, wherein Rand Rare independently selected from E or forms, with nitrogen, phosphorous, oxygen or sulfur, a heterocyclic ring; E is Ror —H; Ris a C-Calkyl or aralkyl group or a derivative thereof and Ris —OH or R.

20090114394, May 7, 2009

Dec 29, 2008

12/345505

Paul H. Javora - Spring TX, US
Brian B. Beall - Spring TX, US
Mark A. Vorderburggen - Spring TX, US
Qi Qu - Spring TX, US
Sandra L. Berry - Tomball TX, US

BJ SERVICES COMPANY - Houston TX

E21B 37/08
C09K 8/52

166312, 507203

Fluid producing or injecting wells may be treated with a water-in-oil emulsion for the removal or inhibition of unwanted particulates, including pipe dope, asphaltenes and paraffins. In addition, such emulsions are effective in the displacement of oil base drilling muds and/or residues from such muds from wells. The emulsion may also be used to break the interfacial and/or rheological properties of oil base mud and synthetic oil base mud filter cakes, and act as a demulsifier to break the water-in-oil emulsion present in such oil base and synthetic oil base muds. The water-in-oil emulsions may optionally contain a dispersing agent as well as a surfactant.

20100029514, Feb 4, 2010

Aug 1, 2008

12/184277

SANDRA L. BERRY - TOMBALL TX, US
HAROLD L. BECKER - TOMBALL TX, US
JOEL L. BOLES - SPRING TX, US
FRANCES DE BENEDICTIS - SPRING TX, US
DORA GALVAN - HOUSTON TX, US

C09K 8/52

507 90

Methods and compositions are provided for dissolving naphthenic acid solids from oilfield systems. The composition includes glacial acetic acid and a solvent that is soluble in the glacial acetic acid or a solvent in which the glacial acetic acid is soluble.