摘要
根据对辽中北洼钻井的分析，认为本区东营组二、三段具异常高压，属于同一套异常压力欠压实系统，其分布受沉积相控制。推测下伏沙河街组属于另一套异常高压系统。受2套异常压力系统的控制，纵向上可望形成3个油气聚集带。指出位于欠压实顶附近的油气聚集带为首要勘探目标。
It is pointed out by a thorough study of well data that the second and third members of Dongying Formation in Northern Liaozhong Subdepression have abnormal high pressures and belong to the same undercompacted system. The distribution of overpressure is controlled by sedimentary facies. The subjacent Shahejie Formation's overpressures in suggested to belong to another overpressure system. There are three hydrocarbon-cumulating-zones vertically controlled by the two overpressure systems, and the hydrocarbon-cumulating-zone near the top of abnormal pressure formation is the best target of exploration.
出处
《中国海上油气（地质）》
1995年第6期361-366,共6页
China Offshore Oil and Gas(Geology)
关键词
渤海辽东湾
辽中北洼
欠压实特征
裂缝带
油气勘探
Northern Liaozhong Subdepression
undercompacted formation
fracture zone
hydrocarbon
