PERMEABILITY FLOW BALANCING WITHIN INTEGRAL SCREEN JOINTS

• US 20100300676A1
• Filed: 06/02/2009
• Published: 12/02/2010
• Est. Priority Date: 06/02/2009
• Status: Active Grant

• Current Assignee: Baker Hughes Incorporated (Baker Hughes Company)
• Original Assignee: Baker Hughes Incorporated (Baker Hughes Company)
• Inventors: JOHNSON, MICHAEL H., KIM, NAMHYO
• Granted Patent: US 8,151,881 B2
• Time in Patent Office: Days
• US Class Current: 166/57
• CPC Class Codes: E21B 43/2406 Steam assisted gravity drainage [SAGD]

Abstract

A SAGD system in a formation including a heated fluid injection well having a tubular including permeability control, one or more open hole anchors restricting thermal growth of the tubular and one or more baffles directing heated fluid application to target areas of the formation; a production well in fluid collecting proximity to the injection well the production well having a tubular with permeability control, one or more open hole anchors and one or more baffles.

Claims

1. A SAGD system in a formation comprising:

a heated fluid injection well having a tubular including permeability control, one or more open hole anchors restricting thermal growth of the tubular and one or more baffles directing heated fluid application to target areas of the formation; and

a production well in fluid collecting proximity to the injection well the production well having a tubular with permeability control, one or more open hole anchors and one or more baffles.

2. A SAGD system as claimed in claim 1 wherein the tubular in the injection well is permeability controlled to have lesser permeability at a heel of the tubular and more permeability at a toe of the tubular.

3. A SAGD system as claimed in claim 1 wherein the tubular in the production well is permeability controlled to have lesser permeability at a heel of the tubular and more permeability at a toe of the tubular.

4. A SAGD system as claimed in claim 1 wherein the injection well includes permeability control having lower permeability toward a heel of the injection well and relatively more permeability toward a toe of the injection well.

5. A SAGD system as claimed in claim 4 wherein the permeability control is one or more permeability control devices.

6. A SAGD system as claimed in claim 5 wherein the one or more devices are beaded matrixes.

7. A SAGD system as claimed in claim 4 wherein the one or more baffles are metal.

8. A SAGD system as claimed in claim 1 wherein the production well includes permeability control having lower permeability toward a heel of the production well and relatively more permeability toward a toe of the production well.

9. A SAGD system as claimed in claim 8 wherein the permeability control is one or more permeability control devices.

10. A SAGD system as claimed in claim 8 wherein the one or more devices are beaded matrixes.

11. A SAGD system as claimed in claim 8 wherein the one or more baffles are metal.