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| Parameters calculation for the gas hydrate reservoir in Muli area |
| LIN Zhen-Zhou1, 2, KONG Guang-Sheng2, PAN He-Ping1, JIA Ding-Yu2, FENG Jie2, OU Yang2, ZHANG Xiao-Wei3 |
1.Institute of Geophysics and Geomatics,China University of Geosciences (Wuhan),Wuhan 430074,China;
2.Institute of Geophysical and Geochemical Exploration,Langfang 065000,China;
3.Dongfang College,Beijing University of Chinese Medicine,Langfang 065000,China |
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Abstract As an important geophysical exploration means, the well-logging plays an important role in quantitative evaluation/assessment of natural hydrate. With more and more natural gas hydrate being explored in Muli area, a calculation fit for the local shale content, water saturation, porosity and other reservoir parameters is necessary, which is significant for the reservoir optimization and source assessment. Based on the evaluation model of gas hydrate frequently used in the literatures both in China and abroad, the authors consulted the well-logging data of Muli area processed through environment adjustment and standardization, and calculated quantitatively the porosity, saturation and other parameters. With core testing and core electricity data, the authors also amended and improved the parameters calculation models, and analyzed the advantages and disadvantages of different well-logging interpretations applied in gas hydrate reservoir calculation. The results show that the shale content was obtained through natural gamma, the porosity was obtained through gas density resolved by hydrate and had less impact, and saturation was obtained by Indonesia's formula, amended equation and Archie's formulas according to different hydrate values.
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Received: 08 September 2017
Published: 20 December 2017
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