发明名称 |
RAW MIXTURE FOR HOLE WALL CEMENTING |
摘要 |
Hydraulic cement slurry for use in cementation of oil wells containing hydraulic cement, 5-100% microsilica based on the weight of cement, 2-200% light weight aggregate with a real particle density between 0.1 and 1.5 g/cm3 based on the weight of the cement, 0-5% thinner (dry weight) based on the weight of the cement, 0-10% fluid loss additive (dry weight) based on the weight of the cement, and water in such an amount that the cement slurry has a density between 0.8 and 2.0 g/cm3. The cement slurry according to the present invention is gas tight and can thereby be used for cementation of oil well in fields having gas containing formations. |
申请公布号 |
RU1799369(C) |
申请公布日期 |
1993.02.28 |
申请号 |
SU19864028066 |
申请日期 |
1986.09.02 |
申请人 |
ELKEM A/S;NORSKE STATS OLJESELSKAP A/S |
发明人 |
NILS BLOMBERG,NO;ELDAR O.DINGSER,NO;PER I.SVENKERID,NO;BERN VASSOJ,NO |
分类号 |
C04B26/00;C04B28/02;C09K8/46;C09K8/473 |
主分类号 |
C04B26/00 |
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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