摘要
准噶尔盆地阜康凹陷及其周缘是盆内油气富集区之一,区内含油层系普遍发育异常高压。通过实测压力标定,结合有效应力方程计算区内砂岩和泥岩压力值,划分了4个超压系统,即头屯河组、西山窑组、三工河组、八道湾组超压系统,不同超压系统之间存在过渡带。通过油源对比和断裂活动演化研究,认为超压是断层再次活化输导的主要动力,它控制了含油层系的富集程度。
The Fukang Sag and its periphery in the Junggar Basin are the oil and gas enrichment areas in the basin, and the oil layer generally develops abnormally high pressure. Four overpressure systems are classified through the measured pressure calibration combined with the effective stress equation which is used to calculate sandstone and mudstone pressure of the area. The four systems are Toutunhe Formation, Xishanyao Formation, Sangonghe Formation, Badaowan Formation overpressure systems, and there is a transition zone between different overpressure systems. Based on the oil source contrast and the fault activity evolution, it is considered that the overpressure is the main driving force of the re-activation of the fault and the main controlling factor of the enrichment of the oil-bearing layer.
作者
曾治平
ZENG Zhiping(Western Branch of Research Institute of Exploration and Development, Shengli Oilfield Company, SINOPEC,Dongying 257000, Chin)
出处
《断块油气田》
CAS
北大核心
2017年第3期337-341,共5页
Fault-Block Oil & Gas Field
基金
国家科技重大专项课题"准噶尔盆地碎屑岩层系油气富集规律与勘探评价"(2016ZX05002-002)
关键词
异常高压
有效应力方程
超压系统
物性条件
abnormal pressure
effective stress equation
overpressure system
physical property
