摘要
在回顾该地区煤层气勘探历史的基础上，从影响煤层气开采的主要地质因素出发，论述了煤层渗透性及决定煤层渗透性的古、今地应力场特征、煤层天然裂隙发育程度、现今有效地应力大小以及地层压力、等温吸附／解吸特征、含气饱和程度及气体扩散速率等；探讨了一号向斜不同部位煤层气开采具有的不同地质影响因素。了解并掌握这些因素有利于煤层气进一步勘探和开发。
Based on the review of exploration history of coalbed methane(CBM)in this region,the main geological factors affecting the CBM recovery are discussed,such as the permeability of coal seam,the ancient and present stress fields,the development of natural fracture in coal seam and the present effective stress,as well as reservoir pressure,isotherm adsorption/desorption,gas saturability and velocity of gas diffusion and so on .There are different geological factors affecting CBM recovery in different parts of the syncline,to understand and master these factors are advantageous for further CBM exploration and development.
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
1999年第1期29-31,共3页
Coal Geology & Exploration
