发明授权
- 专利标题： Permeable cements
- 专利标题（中）： 透水泥
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申请号： US10276186申请日： 2001-05-11
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公开(公告)号： US06883609B2公开(公告)日： 2005-04-26
- 发明人: Bruno Drochon , Pierre Maroy
- 申请人： Bruno Drochon , Pierre Maroy
- 申请人地址： US TX Sugar Land
- 专利权人： Schlumberger Technology Corporation
- 当前专利权人： Schlumberger Technology Corporation
- 当前专利权人地址： US TX Sugar Land
- 代理商 Thomas O. Mitchell; Robin Nava; Brigitte L. Echols
- 优先权： FR0006171 20000515
- 国际申请： PCTEP01/05507 WO 20010511
- 国际公布： WO0187796 WO 20011122
- 主分类号： C04B7/52
- IPC分类号： C04B7/52 ; C04B28/02 ; C09K8/46 ; C09K8/473 ; E21B43/02
摘要：
The present invention concerns a cement slurry with high permeability and good compressive strength, comprising a solid fraction constituted by: 35% to 80% (by volume) of particles with a mean size in the range 100 microns (μ) to 800μ; 0% to 15% (by volume) of particles with a mean particle diameter in the range 0.1 microns to 10 microns; and 10% to 40% (by volume) of particles with a mean particle diameter in the range 20μ to 50μ; a fraction of said-solid particles being constituted by a cement, and preferably a further fraction by self-destructive particles; a liquid fraction in a water/solid ratio in the range 38% to 50% by volume; and a percentage of cells, provided by a gas or a liquid which is not miscible with water, in the range 30% to 60% of the final volume of the slurry.
公开/授权文献
- US20030168215A1 Permeable cements 公开/授权日：2003-09-11
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