东营凹陷河125断层构造定量分析

Structural quantitative interpretation of Fault He 125 in Dongying Depression

李旭 钟建华 高玉飞 王志坤 马锋 付克宽

中国石油大学地球资源与信息学院，山东 东营 257061 中国科学院广州地球化学研究所，广东 广州 510640 中国石油勘探开发研究院，北京 100083 胜利油田分公司东辛采油厂，山东 东营 257094

对河125断层进行了几何学再造，利用平衡剖面分析了运动学和动力学特征。其运动学特征表明：河125断层不同断裂段的断层生长指数呈对称分布，因此它是以正向滑移为主的正断层，与走滑运动无关；断层的活动性东强西弱，中部地区沙三中活动性最强，可以提供良好的储集空间。另外从该区广泛发育的盐膏层及其发育情况看，盐底劈也可能是断层发育的一个主要因素。

This paper analyzes the kinematics and kinetics characteristics of Fault He 125 through the analysis of balanced section and
the geometric reconstruction of Fault He125. The kinematics characteristics show that the distribution of fault growth index is
symmetrical in different fault sections of Fault He125. So it is a centripetal fault connected mainly with forward slip, having
nothing to do with strike slip. The fault activity is stronger in the east of the fault than in the west. The activity is the strongest in
the middle Es3 member in the middle area, which can supply a good hydrocarbon accumulation room. In addition, the salt diapir
may be a main factor of fault growth according to the distribution and evolution of widely developed salt-gypsum beds.