Paul H Javora

US Patent:

7144512, Dec 5, 2006

Filed:

Jul 18, 2003

Appl. No.:

10/623044

Inventors:

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

Assignee:

BJ Services Company - Houston TX

International Classification:

B01D 15/00

US Classification:

210666, 1662441, 166267, 175 66, 210688, 210694, 210722, 210729, 210912

Abstract:

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.

US Patent:

7172703, Feb 6, 2007

Filed:

Jun 3, 2005

Appl. No.:

11/145281

Inventors:

Paul H. Javora - Spring TX, US
Qi Qu - Spring TX, US

International Classification:

B01D 15/00

US Classification:

210666, 1662441, 166267, 175 66, 210722, 210729, 210912

Abstract:

A method of reclaiming a well completion brine solution by using an organic chelant that is capable of discriminating between (i) iron and/or non-zinc heavy metals; and (ii) calcium and zinc. The chelant is of the formula:.

US Patent:

7306039, Dec 11, 2007

Filed:

Aug 13, 2003

Appl. No.:

10/641909

Inventors:

Xiaolan Wang - Baton Rouge LA, US
Paul H. Javora - Spring TX, US

Assignee:

BJ Services Company - Houston TX

International Classification:

E21B 36/00
E21B 43/00
E21B 43/01

US Classification:

166300, 166 57, 166302, 166367, 166901, 507 90, 507211, 507226, 507230, 507266, 507267, 507271, 507273, 507903, 507926

Abstract:

A thermal insulating packer fluid contains water and/or brine, a crosslinkable viscosifying polymer, a crosslinking agent and an optional set retarder. The composition is capable of inhibiting unwanted heat loss from production tubing or uncontrolled heat transfer to outer annuli. The viscosity of the composition is such as to reduce the convection flow velocity within the annulus.

US Patent:

7481273, Jan 27, 2009

Filed:

Jun 18, 2007

Appl. No.:

11/820085

Inventors:

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

Assignee:

BJ Services Company - Houston TX

International Classification:

E21B 37/00
C09K 8/52

US Classification:

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

Abstract:

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.

US Patent:

7674384, Mar 9, 2010

Filed:

Feb 2, 2007

Appl. No.:

11/701888

Inventors:

Paul H. Javora - Spring TX, US
Qi Qu - Spring TX, US

Assignee:

BJ Services Company - Houston TX

International Classification:

B01D 15/00
E21B 43/34

US Classification:

210666, 1662441, 166267, 175 66, 210688, 210694, 210722, 210729, 210912

Abstract:

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(R)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(R)Ror 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 Rand Rare independently selected from —OH, —ORand R.

US Patent:

7678281, Mar 16, 2010

Filed:

Feb 2, 2007

Appl. No.:

11/701780

Inventors:

Paul H. Javora - Spring TX, US
Qi Qu - Spring TX, US

Assignee:

BJ Services Company - Houston TX

International Classification:

B01D 17/00
E21B 43/34

US Classification:

210722, 1662441, 166267, 175 66, 210729, 210912

Abstract:

A method of reclaiming a well completion brine solution containing metal impurities by introducing to the brine solution an organic chelant of the formula:.

US Patent:

7762332, Jul 27, 2010

Filed:

Oct 30, 2006

Appl. No.:

11/589461

Inventors:

Cristian A. Lopez - Corpus Christi TX, US
Xiaolan Wang - Baton Rouge LA, US
Qi Qu - Spring TX, US
Paul H. Javora - Spring TX, US

Assignee:

BJ Services Company LLC - Houston TX

International Classification:

E21B 36/00
E21B 43/24
C09K 8/68

US Classification:

166302, 166367, 507203, 507211, 507221, 507224, 524 47, 524 55, 524504

Abstract:

A thermal insulating packer fluid contains at least one water superabsorbent polymer and optionally water and/or brine, and a viscosifying polymer. The composition is capable of inhibiting unwanted heat loss from production tubing or uncontrolled heat transfer to outer annuli. The viscosity of the composition is sufficient to reduce the convection flow velocity within the annulus.

US Patent:

8136596, Mar 20, 2012

Filed:

May 27, 2010

Appl. No.:

12/788357

Inventors:

Cristian A. Lopez - Corpus Christi TX, US
Xiaolan Wang - Baton Rouge LA, US
Qi Qu - Spring TX, US
Paul H. Javora - Spring TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 36/00
C09K 8/10

US Classification:

166302, 427337

Abstract:

A thermal insulating packer fluid contains at least one water superabsorbent polymer and optionally water and/or brine, and a viscosifying polymer. The composition is capable of inhibiting unwanted heat loss from production tubing or uncontrolled heat transfer to outer annuli. The viscosity of the composition is sufficient to reduce the convection flow velocity within the annulus.