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| 应力场、地温场、压力场对煤层气储层渗透率影响研究——以山西沁水盆地为例 | |
| 引用本文： | 孙立东,赵永军,蔡东梅.应力场、地温场、压力场对煤层气储层渗透率影响研究——以山西沁水盆地为例[J].山东科技大学学报(自然科学版),2007,26(3):12-14,31. |
| 作者姓名： | 孙立东 赵永军 蔡东梅 |
| 作者单位： | 1. 大庆油田有限责任公司,勘探开发研究院,黑龙江,大庆,163453;中国石油大学(华东)地球资源与信息学院,山东,东营,257061 2. 中国石油大学(华东)地球资源与信息学院,山东,东营,257061 3. 中国石油大学(北京)资源与信息学院,北京,102249 |
| 基金项目： | 国家重点基础研究发展计划(973计划) |
| 摘 要： | 为了确定煤层气储层渗透率的变化规律,从岩石力学性质分析入手,以山西沁水盆地上古生界煤层气储层的实际地质情况为例,探讨了构造应力场、地温场、压力场对煤储层渗透率分布的控制机理.研究表明,构造应力场的应力-应变控制着储层裂隙的发育规律,地温场通过控制煤岩的力学性质而改变应力场的作用效果,而随着压力场作用增强,渗透率降低. |
| 关 键 词： | 应力场 地温场 压力场 煤储层 渗透率 |
| 文章编号： | 1672-3767（2007）03-0012-03 |
| 收稿时间： | 2007-04-05 |
| 修稿时间： | 2007-04-05 |
Research on Effect of Pressure,Geo-temperature and Stress Fields on Permeability of Coalbed-gas-bearing Seams in Qinshui Basin |
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| SUN Li-dong,ZHAO Yong-jun,CAI Dong-mei.Research on Effect of Pressure,Geo-temperature and Stress Fields on Permeability of Coalbed-gas-bearing Seams in Qinshui Basin[J].Journal of Shandong Univ of Sci and Technol: Nat Sci,2007,26(3):12-14,31. | |
| Authors: | SUN Li-dong ZHAO Yong-jun CAI Dong-mei |
| Affiliation: | 1. The Exploration and Development Research Institution,Daqing Qilfield 1.imited liability company,Daqing, Heilongjiang 163453, China ; 2. Institute of Geo-resource and Information, China University of Petroleum, Dongying, Shandong 257061, China ; 3. Institute of Geo-resource and Information, China University of Pet roleum, Beij ing 102249, China |
| Abstract: | In order to determine the change law of permeability of coalbed-gas-bearing seam, the paper discusses the control mechanism of tectonic stress field, geo-temperature field, and pressure field on permeability distribution of coalbed-gas-bearing seam starting from the analysis of rock mechanics and taking the actual geological condition of coalbed-gas-bearing seams in Upper Palaeozo Erathem of Qinshui Basin as a sample. The research shows that the stress-strain field controls the fracture development of coal seams while geo-temperature field changes the action effect of stress-strain field by dominating the mechanical properties of coals and rocks. The permeability decreases as increase of pressure field action. |
| Keywords: | stress field geo-temperature field pressure field coalbed-gas-bearing seam permeability |
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