发明名称 |
Cement compositions with aplite |
摘要 |
<p>A method of well construction comprises introducing a settable cement composition down a borehole, wherein the settable cement composition contains pulverulent aplite. The aplite may constitute at least 10% by weight of cement. A cement is disclosed containing at least 30% aplite by weight of cement. Also disclosed is a cement containing aplite having a particle size of less than 200 microns typically from 50 to 100 microns. The aplite reduces cement shrinkage on setting and gives a high strength, low porosity, low permeability cement.</p> |
申请公布号 |
GB2425531(B) |
申请公布日期 |
2009.07.22 |
申请号 |
GB20050008420 |
申请日期 |
2005.04.26 |
申请人 |
STATOIL ASA;STATOILHYDRO ASA |
发明人 |
ARILD SAASEN;RUNE GODOY;HALLVAR EIDE |
分类号 |
C04B14/04;C04B28/02;C04B28/04;C04B28/08;C09K8/467 |
主分类号 |
C04B14/04 |
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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