PERMEABILITY FLOW BALANCING WITHIN INTEGRAL SCREEN JOINTS AND METHOD

• US 20100300194A1
• 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 8,056,627 B2
• Time in Patent Office: Days
• US Class Current: 73/152.05
• CPC Class Codes: E21B 43/12 Methods or apparatus for controlling the flow of the obtained fluid to or in wells E21B43/25 takes precedence; valve arrangements E21B34/00

Abstract

A borehole system having a permeability controlled flow profile including a tubular string; one or more permeability control devices disposed in the string; and the plurality of permeability control devices being selected to produce particular pressure drops for fluid entering or exiting various discrete locations along the string and method.

Claims

1. A borehole system having a permeability controlled flow profile comprising:

a tubular string;

one or more permeability control devices disposed in the string; and

the plurality of permeability control devices being selected to produce particular pressure drops for fluid entering or exiting various discrete locations along the string.

2. A borehole system as claimed in claim 1 wherein the one or more permeability control devices include one or more devices at a heel of the borehole having a pressure drop of about 45% or less.

3. A borehole system as claimed in claim 1 wherein the one or more permeability control devices include one or more devices at a heel of the borehole having a pressure drop of about 30% or less.

4. A borehole system as claimed in claim 1 wherein the one or more permeability control devices include one or more devices at a toe of the borehole having a pressure drop of about 25% or less.

5. A borehole system as claimed in claim 1 wherein the one or more permeability control devices include one or more devices at a toe of the borehole having a pressure drop of about 1% or less.

6. A borehole system as claimed in claim 1 wherein the one or more permeability control devices include permeability creating pressure drops for a heel of the borehole that is higher than a pressure drop created at a toe of the borehole.

7. A method for controlling a flow profile for a borehole comprising:

selecting one or more permeability control devices for inclusion in a completion; and

controlling pressure drop for fluid flowing through a wall of the completion by permeability selection.

8. A method as claimed in claim 7 wherein the method further includes producing or injecting through the one or more permeability control devices and producing a flow profile that is generally uniform along the borehole.

9. A method as claimed in claim 7 wherein the controlling is creating a higher pressure drop at a hell of the borehole than at a toe of the borehole.