汪家屯—升平地区深层超压分析ANALYSIS OF DEEP OVERPRESSURE IN WANGJIATUN-SHENGPING AREA
孟庆武,蔡希源,李悌
Meng Qingwu;Cai Xiyuan & Li Ti (E&D Research Institute of Daqing Petroleum Administrative Bureau; Heilongjiang;
摘要(Abstract)：
松辽盆地浅层被认为是存在超压的， 因为青山口组和嫩一、二段地层稳定分布着几百米厚的区域性泥质岩层。松辽盆地深层虽然没有稳定分布的较厚泥岩层， 但从形成压力异常的地质条件看， 深层要优于浅层。汪家屯—升平地区的实际计算表明， 深层压力异常确实存在， 并影响着本区天然气的分布。
Overpressure was thought to be existed in the shallow layer of Songliao basin because several-hundred-meter-think regional shaly rock distributes steadily in Qingshankou Formation, NenⅠ and NenⅡ members. Although there is not steadily distributed thicker shaly rock in the deep part of Songliao basin, we believe that the deep part is better than shallower part when considering the geologic conditions of forming abnormal pressure. The calculation in Wangjiatun-Shengping area also suggests that there surely exist deep abnormal pressure and it affects the distribution of natural gas in this area.
关键词(KeyWords)：
深层;地层超压;保存条件;气藏;封闭
Deep layer, Formation overpressure, Preservation condition, Gas reservoir, Seal
基金项目(Foundation):
作者(Authors):
孟庆武,蔡希源,李悌
Meng Qingwu;Cai Xiyuan & Li Ti (E&D Research Institute of Daqing Petroleum Administrative Bureau; Heilongjiang;