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- Title
高温高压条件下不同气体组分储层岩电实验及应用.
- Authors
何胜林; 张海荣; 杨冬; 吴一雄; 吴进波
- Abstract
Due to the fact that the influence of CO2 and CH4 mixed gas on the rock electrical parameters is not clear, calculation accuracy of water saturation is low. Through the simulation of reservoir conditions rock electric experiment, respectively with different content of CO2 and CH4 mixed gas coreflood,with determination of the b, n and m values, the effects have been analyzed of mixture of CO2 and CH4 on the electrical properties of rock. Different CO2 content of mixed gas dissolved in the formation water, the a and m values basically have no difference; with the increase of CO2 content, b value increases, n value decreases. A prediction model was established to the b and n values variance with the content of CO2. The water saturation calculated by this method is in good agreement with the core analysis results, and the reliability of the method is confirmed.
- Publication
Natural Gas Geoscience, 2017, Vol 28, Issue 4, p575
- ISSN
1672-1926
- Publication type
Article
- DOI
10.11764/j.issn.1672-1926.2017.02.009