PERMEABILITY FLOW BALANCING WITHIN INTEGRAL SCREEN JOINTS

• US 20100300675A1
• Filed: 06/02/2009
• Published: 12/02/2010
• Est. Priority Date: 06/02/2009
• Status: Abandoned Application

• Current Assignee: Baker Hughes Incorporated (Baker Hughes Company)
• Original Assignee: Baker Hughes Incorporated (Baker Hughes Company)
• Inventors: JOHNSON, MICHAEL H., KIM, NAMHYO
• Application Number:
  US12/476,859
• Publication Number:
  US 20100300675A1
• Time in Patent Office: Days
• US Class Current: 166/57
• CPC Class Codes: E21B 43/2406 Steam assisted gravity drainage [SAGD]

Abstract

A thermally assisted downhole system including a tubular configured to be disposed within an open hole borehole, the tubular being intended to be exposed to a heated fluid; a plurality of open hole anchors spaced along the tubular and engagable with the open hole, the anchors restricting longitudinal thermal growth of the tubular when engaged with the open hole.

Claims

1. A thermally assisted downhole system comprising:

a tubular configured to be disposed within an open hole borehole, the tubular being intended to be exposed to a heated fluid; and

a plurality of open hole anchors spaced along the tubular and engagable with the open hole, the anchors restricting longitudinal thermal growth of the tubular when engaged with the open hole.

2. A thermally assisted downhole system as claimed in claim 1 further including one or more baffles disposed along the longitudinal extent of the tubular, the baffles being of sufficient size and thermal resistance to withstand and divert applied heated fluid.

3. A thermally assisted downhole system as claimed in claim 1 wherein the plurality of open hole anchors are spaced evenly.

4. A thermally assisted downhole system as claimed in claim 1 wherein the open hole anchors are spaced unevenly.

5. A thermally assisted downhole system as claimed in claim 1 wherein the space between each of the plurality of open hole anchors is selected to prevent movement of a liner relative to the wellbore during temperature or pressure changes.

6. A thermally assisted downhole system as claimed in claim 1 further including one or more baffles disposed along the longitudinal extent of the tubular, the baffles being of sufficient size and thermal resistance to withstand and divert applied heated fluid.

7. A thermally assisted downhole system as claimed in claim 1 wherein the one or more baffles are a plurality of baffles spaced evenly along the tubular.

8. A thermally assisted downhole system as claimed in claim 1 wherein the one or more baffles are a plurality of baffles spaced unevenly along the tubular.

9. A thermally assisted downhole system as claimed in claim 1 wherein the one or more baffles are a plurality of baffles spaced as dictated by formation condition.

12. A thermally assisted downhole system as claimed in claim 2 wherein the thermally assisted downhole system is a SAGD system.

10. A thermally assisted downhole system comprising:

a tubular within an open hole borehole, the tubular being exposed to a heated fluid; and

a plurality of open hole anchors spaced along the tubular and engaged with the open hole, the anchors restricting longitudinal thermal growth of the tubular.

11. A thermally assisted downhole system as claimed in claim 10 further including one or more baffles disposed along the longitudinal extent of the tubular, the baffles being of sufficient size and thermal resistance to withstand and divert applied heated fluid.