潜水面对储层压力的作用机制  

Mechanism of water table effecting reservoir pressure

作　　者：许浩[1] 汤达祯[1] 张君峰[2] 尹微[2] 

机构地区：[1]中国地质大学能源学院,海相储层演化与油气富集机理教育部重点实验室,北京100083 [2]中国石油勘探开发研究院,北京100083

出　　处：《煤田地质与勘探》2008年第5期31-33,37,共4页Coal Geology & Exploration

基　　金：国家重大基础研究发展计划(973计划)项目(2002CB211702);国家自然科学基金重点项目(40730422);中石油股份公司风险创新基金项目(0706d01040102)

摘　　要：潜水面与地表不一致会使储层压力产生异常,给煤层气勘探开发造成影响。从异常压力的成因机理入手,应用理论分析与实例解剖相结合的方法,通过不同系统中潜水面对储层压力的作用机制研究,分析了开放系统中区域潜水面变化所引起的储层压力变化规律,反映了盆地水动力场作用下的储层压力系统的动态演化过程,指出潜水面变化是储层异常压力形成的重要机制。The difference between water table and surface can bring abnormal pressure, which will cause effect on coalbed gas development. Considering the genetic mechanisms of abnormal pressure of reservoir, through simulation analysis on the mechanism of water table effecting reservoir pressure of different system, the variety of water table causing pressure variety of reservoir pressure is analyzed, which reflects the dynamic evolvement process of reservoir pressure under the action of hydrodynamic field. The study indicated that the variety of water table is an important mechanism of reservoir abnormal pressure.

关 键 词：潜水面 异常压力 成因机制 储层 

分 类 号：P618.11[天文地球—矿床学]