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| 徐深火山岩气藏中天然气的扩散能力及其影响因素实验研究 | |
| 引用本文： | 晏军,杨正明,韩有信,惠钢,齐亚东.徐深火山岩气藏中天然气的扩散能力及其影响因素实验研究[J].西安石油大学学报(自然科学版),2011,26(4):56-59,63,9. |
| 作者姓名： | 晏军 杨正明 韩有信 惠钢 齐亚东 |
| 作者单位： | 1. 中国科学院渗流流体力学研究所,河北廊坊065007;中国石油勘探开发研究院廊坊分院,河北廊坊065007 2. 中国石油勘探开发研究院廊坊分院,河北廊坊,065007 3. 大庆石油学院地球科学学院,黑龙江大庆,163318 4. 中国石油勘探开发研究院,北京,100083 |
| 基金项目： | 国家重点基础研究发展计划(973项目)(编号:2007CB209500)资助 |
| 摘 要： | 为研究徐深火山岩气藏中天然气的扩散能力及其影响因素,对不同火山岩岩心扩散系数进行测定.从测试结果可知:天然气在火山岩气藏中的扩散主要受扩散介质、含水饱和度、温度及孔隙度影响.5种不同类型的火山岩中天然气的扩散系数由大到小依次为:流纹岩、凝灰岩、晶屑凝灰岩、火山角砾岩、熔结角砾岩;火山岩中天然气的扩散系数随着含水饱和度的增加急剧下降,干岩样中天然气的扩散系数是完全饱和岩样的600多倍;在超过100℃的火山岩储层中扩散系数与温度的关系不大,在徐深火山岩气藏条件下测得的扩散系数为10-5 cm2/s数量级;扩散系数与岩石的孔隙度存在正相关关系;在常温下甲烷气体在火山岩和泥岩中的扩散能力相差不大,都在10-7 cm2/s数量级. |
| 关 键 词： | 火山岩气藏 气体扩散作用 扩散系数 影响因素 |
Diffusion capacity of the natural gas in volcanic gas reservoirs in Xushen area and the experimental research of its influencing factors |
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| YAN Jun,YANG Zheng-ming,HAN You-xin,HUI Gang,QI Ya-dong.Diffusion capacity of the natural gas in volcanic gas reservoirs in Xushen area and the experimental research of its influencing factors[J].Journal of Xian Shiyou University,2011,26(4):56-59,63,9. | |
| Authors: | YAN Jun YANG Zheng-ming HAN You-xin HUI Gang QI Ya-dong |
| Institution: | YAN Jun1,2,YANG Zheng-ming2,HAN You-xin3,HUI Gang4,QI Ya-dong1,2(1.Institute of Porous Fluid Mechanics,Chinese Academy of Sciences,Langfang 065007,Hebei,China,2.Langfang Branch,Research Institute of Petroleum Exploration and Development,PetroChina,3.College of Geosciences,Daqing Petroleum Institute,Daqing 163318,Heilongjiang,4.Research Institute of Petroleum Exploration and Development,Beijing 100083,China) |
| Abstract: | In order to determinate the diffusion capacity of the natural gas in volcanic gas reservoirs in Xushen area and its influencing factors,the diffusion coefficients of natural gas in various volcanic cores are measured.It is shown that,the natural gas diffusion coefficient is influenced by the lithology,water saturation,temperature and porosity of the volcanic reservoirs.The sort of the diffusion coefficients of natural gas in five types of volcanic gas reservoirs in Xushen area from big to small is rhyolite,... |
| Keywords: | volcanic gas reservoir diffusion capacity of natural gas diffusion coefficient influencing factor |
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