| 川南地区排水找气过程中的地球化学特征及意义 |
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| 引用本文： | 王兰生,杨家静,郭奇泰,王曦.川南地区排水找气过程中的地球化学特征及意义[J].成都理工大学学报(自然科学版),2002,29(1):21-25. |
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| 作者姓名： | 王兰生 杨家静 郭奇泰 王曦 |
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| 作者单位： | 1. 中国石油西南油气田分公司勘探开发研究院,成都,610051
2. 中国石油西南油气田分公司川南气矿研究所 |
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| 摘 要： | 依据川南地区排水找气过程中气水动态资料和模拟实验结果 ,首次提出排水找气过程中天然气的排出具有水溶气排出和游离气排出两个阶段的认识 ,并提出了判识水溶气排出阶段和游离气排出阶段的天然气地球化学指标 ,为进一步研究排水找气过程中预测游离气大量产出的方法奠定了基础 ,拓展了有机地球化学的研究领域
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| 关 键 词： | 排水找气 地球化学 川南地区 |
| 文章编号： | 1005-9539(2002)01-0021-05 |
| 修稿时间： | 2001年2月25日 |
GEOCHEMICAL CHARACTERISTICS AND SIGNIFICANCE IN THE STAGE OF WATER DRAINAGE FOR FINDING GAS IN THE SOUTH OF SICHUAN BASIN |
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| WANG Lan sheng,YANG Jia jing,GUO Qi tai,WANG Xi.GEOCHEMICAL CHARACTERISTICS AND SIGNIFICANCE IN THE STAGE OF WATER DRAINAGE FOR FINDING GAS IN THE SOUTH OF SICHUAN BASIN[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2002,29(1):21-25. |
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| Authors: | WANG Lan sheng YANG Jia jing GUO Qi tai WANG Xi |
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| Abstract: | Based on the gas and water behaviors of some wells and the simulated test results in south of Sichuan Basin, two stages of water drainage for finding gas are proposed. One stage is the aqueous solution of gas drainage stage in water, in which the actual gas water ratio is larger than the theoretical ratio. And the other is the free gas drainage stage. At this stage the actual gas water ratio is less than the theoretical ratio. And the organic geochemical indictors of natural gas for identifying the two stages are put forward. The authors think that this work is a base of using the density, C 1/C 2 + and C 2/C 3 of natural gas to determine the different stages. It is useful to estimate the gas production in the water drainage process. |
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| Keywords: | water drainage for finding gas geochemistry the south of Sichuan Basin |
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