发明名称 |
GAS-GENERATING ADDITIVES HAVING IMPROVED SHELF LIVES FOR USE IN CEMENT COMPOSITIONS, AND ASSOCIATED METHODS |
摘要 |
According to various embodiments, gas-generating additives for use in a cement composition comprise: a gas-generating material at least partially coated with a mixture comprising a fatty acid ester of sorbitan, glycerol, or pentaerythritol and having a shelf life of about 12 months or greater. The gas-generating additives may also include a C<SUB>8</SUB>-C<SUB>18</SUB> hydrocarbon. In more embodiments, cement compositions comprise: a gas-generating material at least partially coated with a mixture comprising a fatty acid ester of sorbitan, glycerol, or pentaerythritol and a C<SUB>8</SUB>-C<SUB>18</SUB> hydrocarbon for increasing a shelf life of the gas-generating material. In yet more embodiments, cement compositions comprise: a cement; a fluid for making the cement composition pumpable; a hydrogen-generating material at least partially coated with a mixture for delaying a hydrogen-generating reaction, the mixture comprising sorbitan monooleate and an isoparaffin. |
申请公布号 |
WO2006134355(A3) |
申请公布日期 |
2007.03.15 |
申请号 |
WO2006GB02175 |
申请日期 |
2006.06.14 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC.;CURTIS, PHILIP, ANTHONY;SANTRA, ASHOK, K.;MCKINLEY, RITA, J. |
发明人 |
SANTRA, ASHOK, K.;MCKINLEY, RITA, J. |
分类号 |
C04B20/10;C04B28/02;C04B38/02 |
主分类号 |
C04B20/10 |
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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