发明授权
US07240728B2 Expandable tubulars with a radial passage and wall portions with different wall thicknesses 有权
具有径向通道的膨胀管和具有不同壁厚的壁部分

Expandable tubulars with a radial passage and wall portions with different wall thicknesses
摘要:
A tubular liner including a first tubular portion, a second tubular portion, and an intermediate tapered tubular portion coupled to, and positioned between, the first and second tubular portions.
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