发明名称 Methods of directional drilling and forming kickoff plugs using self-degrading cement in subterranean well bores
摘要 Methods of drilling a well bore in a subterranean formation comprising placing a self-degrading kickoff plug or the like in the well bore are provided. An example of a method is a method comprising: providing a self-degrading cement composition that comprises a degradable material, an acid source, a base source, and a water source; placing the self-degrading cement composition in a desired location in a well bore that penetrates a subterranean formation; and allowing the self-degrading cement composition to set to form a hardened kickoff plug.
申请公布号 US7640985(B2) 申请公布日期 2010.01.05
申请号 US20050188238 申请日期 2005.07.22
申请人 HALLIBURTON ENERGY SERVICES, INC. 发明人 SAVERY MARK R.;SANTRA ASHOK K.;TODD BRADLEY L.
分类号 E21B33/13 主分类号 E21B33/13
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