发明申请
- 专利标题: Shale hydration inhibition agent and method of use
- 专利标题(中): 页岩水化抑制剂及其使用方法
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申请号: US10647830申请日: 2003-08-25
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公开(公告)号: US20050049150A1公开(公告)日: 2005-03-03
- 发明人: Arvind Patel , Emanuel Stamatakis , Eric Davis , Jim Friedheim
- 申请人: Arvind Patel , Emanuel Stamatakis , Eric Davis , Jim Friedheim
- 申请人地址: US TX Houston
- 专利权人: M I LLC.
- 当前专利权人: M I LLC.
- 当前专利权人地址: US TX Houston
- 主分类号: C09K7/02
- IPC分类号: C09K7/02
摘要:
A water-base fluid for use in drilling, cementing, workover, fracturing and abandonment of subterranean wells through a formation containing a shale which swells in the presence of water. In one illustrative embodiment, the drilling fluid includes, an aqueous based continuous phase, a weighting agent, and a shale hydration inhibition agent. The shale hydration inhibition agent should have the general formula: in which A is independently selected from H and CH2CH2CH2NH2; and in which B is independently selected from H, CH2CH2OH, CH2CH2OCH2CH2CH2NH2 and CH2CH2CH2NH2. The shale hydration inhibition agent is present in sufficient concentration to substantially reduce the swelling of shale drilling cuttings upon contact with the drilling fluid. The drilling fluid may be formulated to include a wide variety of components of aqueous based drilling fluids, such as weighting agents, fluid loss control agents, suspending agents, viscosifying agents, rheology control agents, as well as other compounds and materials known to one of skill in the art. The fluids may also be used in the disposal by reinjection of drilling cutting into a selected subterranean disposal formation.
公开/授权文献
- US07084092B2 Shale hydration inhibition agent and method of use 公开/授权日:2006-08-01