渤海湾盆地新港探区西部地层压力特征

渤海湾盆地新港探区位于黄骅坳陷北部 ,占据北塘凹陷主体 ,在区域构造上位于新港构造带 ,为岐口 ,北塘及南堡三大凹陷所环抱 ,成油条件优越 ,是大港探区十分重要的找油区域。本文利用Fillippone经验公式法结合地震速度资料 ,对该区西部的地层压力和流体势进行了预测。预测结果表明 :⑴探区西部的压力分布模式不同于Hunt( 1 990 )的标准压力仓模式 ;⑵探区西部Es3及Es2 -d在全区超压峰值最高且分布稳定 ,可能为该区主要的油源层段 ;⑶探区西部海河断层上升盘的异常压力在Es3层段具有极高值 ,说明该构造具有良好的油气聚集条件

The Characteristics of Pressure in West Xingang Area of Bohai Bay Basin

Xin Gang Area of Bo Hai Bay Basin is a very important exploration area,which is located in the north of Huang Hua Depression and occupies the major of Bei Tang sag. Tectonically, it is located in the Xin Gang Structure Belt,surrounded by Qi Kou sag,Bei Tang sag and Nan Pu sag. Therefore,the condition of forming oil is very superior. In this article,the formula supposed by Fillippone is used to predict the fluid pressure with material of velocities seismic waves. The predicted results suggest:(1)Pressure structure of Xin Gang Area is different from the standard of Hunt(1990); (2)The Es3 and Es2-d has the highest peak value of abnormal pressure, it is also distributed steadily and may be the main layer of oil resource in this area;(3)The rising plate of Hai He Fault is characterized by high abnormal pressure in the Es3, which shows that this structure owns good condition of oil accumulation.