桥口地区油气地质特征及有利目标评价

The Hydrocarbon Characteristic Research and Favorable Target Evaluation to Qiaokou Area in Dongpu Depression

桥口地区位于东濮凹陷中央隆起带南部 ,构造条件好 ,油气资源丰富 ,目前探明程度很低 ,仅 1 8 2 5 % ,沙三段更低 ,不到 1 0 % ,因此具有很大的勘探潜力。在对老探井进行深入研究的基础上 ,利用新处理的三维地震资料对桥口地区的构造进行了重新解释 ,取得了一些新的发现和认识 ;对该地区的油气富集条件及油气聚集规律进行了研究 ,认为桥口构造油气源充足、储层发育、油气成藏及保存条件良好 ,是一个具有多套含油气层系的复式断块含油气构造 ;对该地区有利目标进行了综合评价 ,共评价出有利目标 1 3个断块 ,为下步的滚动勘探指明了方向。

Qiaokou area is located at the south of central uplift belt of Dongpu depression,where there is significant exploration potential with good structural condition and abundant hydrocarbon resource and low identified degree(only 18 28% ), particularly in Es 3 section(below 10%). Based on the further research to former exploration wells,this paper explains the structure in Qiaokou area again with retreated 3 D seismic data and gets some new discovery and recognition. After the research to hydrocarbon concentration condition and accumulation principle,it can be concluded that there are abundant hydrocarbon resource and wide spread reservoir and good hydrocarbon accumulation and conservation condition in Qiaokou structure which is a complicated fault block hydrocarbon bearing structure with multiple hydrocarbon bearing series of strata. After the comprehensive evaluation to favorable targets in this area,13 favorable fault blocks are evaluated which point to the direction of next progressive exploration.