发明名称 SYSTEM AND METHOD TO EXPAND TUBULARS BELOW RESTRICTIONS
摘要 A method and apparatus for expanding a tubular below a restriction in a wellbore. An expandable tubular may comprise a first end having a first wall thickness, a second end having a second wall thickness, and a middle section disposed between the first and second ends and having a third wall thickness that is less than the first and second wall thicknesses. The first and second ends may include one or more grooves disposed along a length of the ends. A method for expanding a tubular below a restriction in a wellbore may comprise running the tubular past the restriction, wherein the tubular comprises a first end and a second end, each end having a wall thickness greater than a wall thickness of a middle section disposed between the ends. The method may include expanding the tubular, wherein the first and second ends of the expanded tubular have outer diameters greater than the outer diameter of the middle section.
申请公布号 CA2811268(A1) 申请公布日期 2010.10.24
申请号 CA20102811268 申请日期 2010.04.21
申请人 WEATHERFORD/LAMB, INC. 发明人 RING, LEV;GANDIKOTA, VARADARAJU
分类号 E21B43/08;E21B43/10 主分类号 E21B43/08
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