摘要
在已建立的地层模型的基础上,分析了柴达木盆地英东地区油砂山断层的泥岩涂抹程度并对断裂带排驱压力进行了拟合计算,试图寻求一种在断距较大情况下断层封闭性评价的可行方法。研究认为,合理建立断层区域的地层模型,恰当划分小层是封闭性评价的前提,正确运用评价手段是封闭性评价的关键;油砂山断层的封闭性在垂向深度2 000 m左右是一个分界点,2 000 m以上部分开启,以下完全封闭;油砂山断层下盘深处有很好的勘探前景。
By taking Youshashan fault in Yingdong area of Qaidam Basin as an example,based on the developed formation model,this paper analyses the shale smear of the fault and makes fitting calculation of the fault zone displacement pressure in order to find a feasible method for fault sealing ability evaluation in condition of large fault throw.It is suggested that reasonable development of the fault zone model and proper division of the layers are the premise of the fault sealing ability evaluation,proper utilization of the evaluation means is the key of it.The study shows that the depth of about 2 000 m is a node for sealing of Youshashan fault;the fault is partially open above the depth and completely closed below it.It is concluded that deep footwall of Youshashan fault could have good prospects for petroleum exploration.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2013年第4期421-423,共3页
Xinjiang Petroleum Geology
基金
国家科技重大专项(2011ZX05001-001)
中国石油重大科技专项(2011E-0301)
作者简介
张焕旭（1987-）,男，山东高密人，硕士研究生，地球化学，（Tel） 13540267470（E-mail）huanxuzhang@gmail.com.
