发明名称 Sidetrack option for monobore casing string
摘要 Embodiments of the present invention provide apparatus and methods of forming a lateral wellbore wherein the monobore characteristic is maintained. In one embodiment, a method of completing a lateral wellbore comprises inserting a first tubular into a main wellbore; forming one or more oversized portions on the first tubular; and intersecting the lateral wellbore with the main wellbore. The method further includes inserting a second tubular into the lateral wellbore, wherein a portion of the second tubular is positioned adjacent the one or more oversized portions and expanding the portion of the second tubular adjacent the one or more oversized portions.
申请公布号 US7699112(B2) 申请公布日期 2010.04.20
申请号 US20060418575 申请日期 2006.05.05
申请人 WEATHERFORD/LAMB, INC. 发明人 GALLOWAY GREGORY GUY
分类号 E21B19/16 主分类号 E21B19/16
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