Expandable injector pipe
First Claim
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1. A valve for downhole use comprising:
- a tubular body defining an interior passage and formed having at least one first opening thereon;
a valve member mounted to said body and moveable with respect to said body and further comprising at least one second opening;
said valve member remaining functional for movement with respect to said body for selective flow and blockage of flow between said first and second openings despite radial expansion from said passage.
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Abstract
An expandable injector pipe has openings and a cover sleeve preferably secured at opposed ends with offset openings. Expansion of the base pipe causes the cover sleeve to expand while keeping the openings in the cover sleeve misaligned with the openings in the base pipe. Pressure from within the base pipe flexes the resilient cover sleeve to allow fluid to exit through the cover sleeve. Upon removal of applied pressure, the cover sleeve moves back against the base pipe to cover the openings in the base pipe to prevent flow in the reverse direction.
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Citations
20 Claims
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1. A valve for downhole use comprising:
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a tubular body defining an interior passage and formed having at least one first opening thereon;
a valve member mounted to said body and moveable with respect to said body and further comprising at least one second opening;
said valve member remaining functional for movement with respect to said body for selective flow and blockage of flow between said first and second openings despite radial expansion from said passage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of regulating flow between a formation and a tubular string in a wellbore comprising:
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providing a valve body as part of the tubular string with at least one first opening;
providing a valve member on said valve body with at least one second opening;
expanding the valve body;
selectively creating a flowpath through said first and second openings after said expanding. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification