断陷盆地构造转换带对砂体分布影响研究  

The effect of structural transform zone on sandbody distribution in a fault basin

作　　者：刘子漩 吴冬[2] 

机构地区：[1]中国石化江苏油田分公司采油一厂,江苏扬州225265 [2]中国石油大学(北京)地球科学学院,北京昌平102249

出　　处：《复杂油气藏》2016年第1期17-21,34,共6页Complex Hydrocarbon Reservoirs

摘　　要：构造转换带是油气勘探的重要地区,广泛分布于各类挤压和伸展盆地。断陷湖盆构造转换带主要由2条同沉积正断层构成,包含3个要素:正断层、位移和构造变形。构造转换带可以按不同规模分级,反映了盆内和盆间、构造活动和沉积作用以及层序构型和砂体分布的差异。按主干正断层倾向和分布可以将构造转换带划分为15种类型,不同类型中构造转换带和沉积砂体分布模式不同。构造转换带对油气勘探的意义主要表现在对砂体富集的影响,也表现在对油气运移和圈闭形成的影响。单纯的构造转换带的刻画不足以准确预测砂体分布,还应该结合物源供给、波浪作用等分析。The structural transform zones,widely distributed in various types of compressional and extensional basins,are important areas for oil and gas exploration. The structural transform zone in a fault basin is mainly composed of two synsedimentary normal faults,with three elements of normal faults,displacement,and structural deformation. The structural transform zone can be classified by different scale,reflecting the differences between inside of basin and inter-basin,tectonic activity and deposition,as well as sequence stratigraphic architecture and sandbody distribution. According to the dip direction and distribution of main normal faults,the structural transform zone can be divided into 15 types. There are various structural transform zones and sandbody distributions in each type. The structural transform zone is favor of sandstone accumulation,as well as hydrocarbon migration and trap formation. A simple description is insufficient to accurately predict sandbody distribution. The source supply,wave action and other factors also should be taken into account.

关 键 词：断陷盆地 构造转换带 构造调节带 构造传递带 砂体预测 油气勘探 

分 类 号：P618.13[天文地球—矿床学]