发明授权
- 专利标题： Methods of directional drilling and forming kickoff plugs using self-degrading cement in subterranean well bores
- 专利标题（中）： 定向钻井和形成使用地下井孔中自降解水泥的起球塞的方法
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申请号： US11188238申请日： 2005-07-22
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公开(公告)号： US07640985B2公开(公告)日： 2010-01-05
- 发明人: Mark R. Savery , Ashok K. Santra , Bradley L. Todd
- 申请人： Mark R. Savery , Ashok K. Santra , Bradley L. Todd
- 申请人地址： US OK Duncan
- 专利权人： Halliburton Energy Services, Inc.
- 当前专利权人： Halliburton Energy Services, Inc.
- 当前专利权人地址： US OK Duncan
- 代理机构： Baker Botts, LLP
- 代理商 Craig W. Roddy
- 主分类号： E21B33/13
- IPC分类号： E21B33/13
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.
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