发明名称 |
Cement compositions containing coarse barite, process for making same and methods of cementing in a subterranean formation |
摘要 |
Cement comprising barite, a process for preparing such cement, and methods of cementing in a subterranean formation or well bore using such cement are provided. The cement is prepared by introducing coarse barite to the cement, the course barite comprising particles having a particle size primarily greater than about 125 microns. The presence of the coarse barite in the cement causes the cement to have a relatively low viscosity. Introducing the barite to the cement also increases the density of the cement, thus rendering the cement capable of controlling high hydrostatic pressures in a well bore.
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申请公布号 |
US2005098316(A1) |
申请公布日期 |
2005.05.12 |
申请号 |
US20040987632 |
申请日期 |
2004.11.12 |
申请人 |
HEATHMAN JAMES F.;QUIRT TIMOTHY L. |
发明人 |
HEATHMAN JAMES F.;QUIRT TIMOTHY L. |
分类号 |
C04B28/02;C09K8/42;(IPC1-7):E21B47/00;E21B33/13 |
主分类号 |
C04B28/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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