| 摘要 |
There is disclosed, in one embodiment of the invention an expandable downhole tubular ( 10 ) comprising an expandable inner support tube ( 14 ) an expandable outer tube ( 18 ); and a filter tube ( 22 ) located between said inner support tube ( 14 ) and said outer tube ( 18 ), the filter tube ( 22 ) comprising at least one filter portion ( 24 ) and at least one extendable portion ( 28 ) coupling axial edges of said filter portion ( 24 ), said extendable portion ( 28 ) being extendable to accommodate circumferential expansion of said filter tube ( 22 ).
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