| 摘要 |
A screen assembly has a material that conforms to the borehole shape after insertion. The assembly comprises a compliant layer that takes the borehole shape on expansion. The outer layer is formed having holes to permit production flow. The material that is selected preferably swells with heat a nd preferably comprises a shape memory foam that is thermoset. The base pipe ca n have a screen over it to act as an underlayment for support of the conformin g layer or alternatively for screening. The conforming layer can expand by itself or expansion can also occur from within the base pipe.
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