Expandable sand control screen and method for use of same
First Claim
1. An expandable sand control screen that is positionable within a wellbore comprising:
- a generally tubular member that is expanded downhole, the generally tubular member having drainage openings that allow the flow of production fluids therethrough; and
a filtering assembly disposed exteriorly of the generally tubular member, the filtering assembly including a filter medium that prevents the flow of particulate material of a predetermined size therethrough but allowing the flow of production fluids therethrough and a compressible filler material disposed exteriorly of the filter medium that resiliently recovers downhole toward the wellbore in void regions.
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Accused Products
Abstract
An expandable sand control screen (100) that is positionable within a wellbore comprises a fluid permeable generally tubular member (102) that is expanded downhole. A filtering assembly is disposed exteriorly of the generally tubular member (102). The filtering assembly includes a filter medium (106) that prevents the flow of particulate material of a predetermined size therethrough but allows the flow of production fluids therethrough. The filtering assembly also includes a compliable member (118) that has a thickness that is radially variable downhole. During or after expansion of the expandable sand control screen (100), the radial variability of the thickness of the compliable member (118) allows the expandable sand control screen (100) to comply with any irregularities in the wellbore profile, thereby preventing any void regions between the expandable sand control screen (100) and the wellbore.
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Citations
32 Claims
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1. An expandable sand control screen that is positionable within a wellbore comprising:
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a generally tubular member that is expanded downhole, the generally tubular member having drainage openings that allow the flow of production fluids therethrough; and a filtering assembly disposed exteriorly of the generally tubular member, the filtering assembly including a filter medium that prevents the flow of particulate material of a predetermined size therethrough but allowing the flow of production fluids therethrough and a compressible filler material disposed exteriorly of the filter medium that resiliently recovers downhole toward the wellbore in void regions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An expandable sand control screen that is positionable within a wellbore comprising:
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a generally tubular member that is expanded downhole having drainage openings that allow the flow of production fluids therethrough; and a filter medium disposed exteriorly of the tubular member that prevents the flow of particulate material of a predetermined size therethrough but allows the flow of production fluids therethrough; and a compressible filler material disposed exteriorly of the filter medium that resiliently recovers downhole toward the wellbore in void regions and allows the flow of production fluids therethrough. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification