发明名称 |
MODIFIED PULSE SEQUENCE TO ESTIMATE PROPERTIES |
摘要 |
Methods and related systems are described for estimating fluid or rock properties from NMR measurements. A modified pulse sequence is provided that can directly provide moments of relaxation-time or diffusion distributions. This pulse sequence can be adapted to the desired moment of relaxation-time or diffusion coefficient. The data from this pulse sequence provides direct estimates of fluid properties such as average chain length and viscosity of a hydrocarbon. In comparison to the uniformly-spaced pulse sequence, these pulse sequences are faster and have a lower error bar in computing the fluid properties.
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申请公布号 |
US2013002246(A1) |
申请公布日期 |
2013.01.03 |
申请号 |
US201213543393 |
申请日期 |
2012.07.06 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION;VENKATARAMANAN LALITHA;HABASHY TAREK M.;FREED DENISE E. |
发明人 |
VENKATARAMANAN LALITHA;HABASHY TAREK M.;FREED DENISE E. |
分类号 |
G01V3/175 |
主分类号 |
G01V3/175 |
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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