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| 含水饱和度指数n的理论及实验 | |
| 引用本文： | 孙德明 褚人杰. 含水饱和度指数n的理论及实验[J]. 石油学报, 1994, 15(4): 66-72. DOI: 10.7623/syxb199404009 |
| 作者姓名： | 孙德明 褚人杰 |
| 作者单位： | 1. 中科院地球物理研究所;2. 石油勘探开发科学研究院 |
| 摘 要： | 含水饱和度指数n是用电阻率评价地层流体性质的重要参数.本文通过理论推导,得出了影响n指数的几大因素,分别为地层水电阻率Rw、阳离子交换容量Qv、含水饱和度Sw以及地层因素F.并发现砂岩影响n的因素是F和Rw,而泥质砂岩则分别是Rw,Qv和F.以上某些结论已在实验中得到验证. |
| 关 键 词： | 含水饱和度 指数 地层 水电阻率 [阳离子交换容量] |
| 收稿时间： | 1992-10-20 |
A THEORETICAL AND EXPERIMENTAL STUDY FOR SATURATION EXPONENT, n |
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| Sun Deming. A THEORETICAL AND EXPERIMENTAL STUDY FOR SATURATION EXPONENT, n[J]. Acta Petrolei Sinica, 1994, 15(4): 66-72. DOI: 10.7623/syxb199404009 | |
| Authors: | Sun Deming |
| Affiliation: | 1. Institute of Ge0physics, Chinese Academy of Sciences;2. Scientific Research Institute of Petroleum Exploration and Development, Beijing |
| Abstract: | This paper has given a formula to calculate saturation exponent "n".A few of effectsfactors(Rw,Ow,Sw,F)on "n"is deduced from the formula.The main effects are F(toutu-osity)and Rw(formation water resistivity)for clean sand and Rw,Qw(cation exchange capacity) and F for shaly sand Some results have been verified from a laboratory study. |
| Keywords: | water saturation exponent stratum water resistivity[cation exchange capability] |
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