Jeffrey R Corwith

US Patent:

6651742, Nov 25, 2003

Filed:

Sep 13, 2002

Appl. No.:

10/244117

Inventors:

James A. Burd - Anchorage AK
Jeffrey R. Corwith - Anchorage AK
Keith W. Lynch - Anchorage AK

Assignee:

ConocoPhillips Company - Houston TX

International Classification:

E21B 4316

US Classification:

166269, 166306, 166374, 417437

Abstract:

An apparatus and method for enhancing oil recovery through improved injection well performance is provided, wherein a fluid is injected into the well bore at a pressure P , and a downhole fluid-actuated engine and pump assembly is employed as a booster in order to generate a high pressure output at pressure P greater than P and a low pressure output at pressure P lower than P ; the respective output streams are directed to lower and higher permeability geological strata adjacent the well bore in order to increase production.

US Patent:

6481500, Nov 19, 2002

Filed:

Aug 10, 2001

Appl. No.:

09/928183

Inventors:

James A. Burd - Anchorage AK
Jeffrey R. Corwith - Anchorage AK
Keith W. Lynch - Anchorage AK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

E21B 4316

US Classification:

166269, 166306, 166374

Abstract:

An apparatus and method for enhancing oil recovery through improved injection well performance is provided, wherein a fluid is injected into the well bore at a pressure P , and a downhole fluid-actuated engine and pump assembly is employed as a booster in order to generate a high pressure output at pressure P greater than P and a low pressure output at pressure P lower than P ; the respective output streams are directed to lower and higher permeability geological strata adjacent the well bore in order to increase production.