Invention Grant
- Patent Title: Methods of directional drilling and forming kickoff plugs using self-degrading cement in subterranean well bores
- Patent Title (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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Application No.: US11188238Application Date: 2005-07-22
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Publication No.: US07640985B2Publication Date: 2010-01-05
- Inventor: Mark R. Savery , Ashok K. Santra , Bradley L. Todd
- Applicant: Mark R. Savery , Ashok K. Santra , Bradley L. Todd
- Applicant Address: US OK Duncan
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US OK Duncan
- Agency: Baker Botts, LLP
- Agent Craig W. Roddy
- Main IPC: E21B33/13
- IPC: E21B33/13
Abstract:
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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