Downhole flow control device and method
First Claim
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1. A downhole flow control device, comprising:
- a first member defining a first portion of a flow path; and
a second member defining a second portion of the flow path, the flow path having a cross sectional flow area defined at least partially by the first member and the second member, a length of the flow path being greater than a largest dimension of the cross sectional flow area, and the cross sectional flow area being adjustable by movement of at least a portion of the first member relative to the second member, wherein the first member has a first coefficient of thermal expansion and the second member has a second coefficient of thermal expansion and the first coefficient of thermal expansion is different than the second coefficient of thermal expansion.
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Abstract
A downhole flow control device includes, a first member defining a first portion of a flow path, and a second member defining a second portion of the flow path, the flow path has a cross sectional flow area defined at least partially by the first member and the second member, a length of the flow path is greater than a largest dimension of the cross sectional flow area, and the cross sectional flow area is adjustable by movement of at least a portion of the first member relative to the second member.
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Citations
15 Claims
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1. A downhole flow control device, comprising:
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a first member defining a first portion of a flow path; and a second member defining a second portion of the flow path, the flow path having a cross sectional flow area defined at least partially by the first member and the second member, a length of the flow path being greater than a largest dimension of the cross sectional flow area, and the cross sectional flow area being adjustable by movement of at least a portion of the first member relative to the second member, wherein the first member has a first coefficient of thermal expansion and the second member has a second coefficient of thermal expansion and the first coefficient of thermal expansion is different than the second coefficient of thermal expansion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of adjusting restriction of a downhole flow path, comprising:
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porting fluid through the downhole flow path, the downhole flow path having a length greater than a largest dimension of a cross sectional area of the downhole flow path; axially moving without rotating at least a portion of one of a first member defining a first portion of the downhole flow path and a second member defining a second portion of the downhole flow path relative to the other of the first member and the second member such that the cross sectional area is altered; and expanding the first member a different amount than the second member in response to a temperature change of the first member and a temperature change of the second member. - View Dependent Claims (11, 12, 13, 14)
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15. A downhole flow control device, comprising:
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a first member defining a first portion of a flow path; and a second member defining a second portion of the flow path, the flow path having a cross sectional flow area defined at least partially by the first member and the second member, a length of the flow path being greater than a largest dimension of the cross sectional flow area, the downhole flow control device being configured to adjust the cross sectional flow area in response to axial movement alone of at least a portion of the first member relative to the second member, the first member having a first coefficient of thermal expansion and the second member having a second coefficient of thermal expansion and the first coefficient of thermal expansion is different than the second coefficient of thermal expansion.
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Specification