摘要
苏北盆地高邮凹陷北斜坡阜宁组异常高压主要发育在阜宁组二段(阜二段)、阜宁组三段(阜三段)底部和阜宁组一段(阜一段)顶部。综合分析异常高压成因机制得知:生烃作用、黏土矿物脱水是阜二段异常高压的主要成因;流体传导超压是阜三段、阜一段异常高压的成因。在此基础上恢复了研究区阜宁组超压演化过程。
Abnormal high-pressure in the northern slope of Gaoyou Sag is mainly developed in the second member,the bottom of the third member,and the top of the first member of Funing Formation. By analyzing the forming mechanism of the abnormal high-pressure in Funing Formation,it was concluded that hydrocarbon generation and dehydration of clay minerals were the main causes of abnormal high-pressure in the second member of Funing Formation,and the conduction overpressure of fluid was the cause of abnormal high-pressure in the third member and the first member of Funing Formation. On this basis,it was resumed the overpressure evolution process of Funing Formation in the northern slope.
作者
吴峰
钱诗友
郑元财
WU Feng;QIAN Shiyou;ZHENG Yuancai(Exploration and Development Research Institute of Jiangsu Oilfield Company,SINOPEC,Yangzhou 225009,China)
出处
《复杂油气藏》
2019年第3期23-26,76,共5页
Complex Hydrocarbon Reservoirs
基金
中石化江苏油田分公司项目《高邮凹陷北斜坡评价勘探提高效益关键技术研究》(JS18002)
关键词
高邮凹陷
异常高压
阜宁组
成因机制
Gaoyou Sag
abnormal high-pressure
Funing Formation
forming mechanism