发明名称 REVERSE-CIRCULATION CEMENTING OF SURFACE CASING
摘要 An apparatus for reverse circulation cementing of surface casing in subterranean formations and associated methods are provided. One example of a method may involve a method of reverse circulation cementing a surface casing in a well bore with a conductor casing positioned therein comprising: providing a tool comprising at least one isolation device coupled to the surface casing; positioning the isolation device in the well bore to isolate an annulus between the surface casing and the conductor casing; flowing cement through a port in the conductor casing in a reverse circulation direction; and allowing the cement to set therein.
申请公布号 CA2637082(C) 申请公布日期 2011.01.25
申请号 CA20082637082 申请日期 2008.07.03
申请人 HALLIBURTON ENERGY SERVICES, INC. 发明人 CHASE, STEPHEN;MAIER, GARY
分类号 E21B33/16 主分类号 E21B33/16
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