源上和源外斜坡区断砂组合输导油气特征差异性研究:以松辽和渤海湾盆地为例  

Research on differences about oil and gas transportation characteristics by fault-sandbody configuration between areas above source and slope areas outside source:examples of Songliao and Bohai Bay Basin

作　　者：王彪[1] WANG Biao(Exploration and Development Research Institute of Daqing Oilfield Company Ltd.,Daqing 163712,Heilongjiang,China)

机构地区：[1]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《世界地质》2023年第3期536-544,共9页World Geology

基　　金：中国石油天然气股份有限公司重大科技专项(2016E-02)。

摘　　要：为了研究富油气凹陷源上和源外斜坡区油气分布特征、明确分布规律,以源上和源外斜坡区油气成藏模式及运移通道研究为基础,通过对松辽和渤海湾盆地源上和源外斜坡区油气分布与断砂组合输导模式之间关系的实例分析,对源上和源外斜坡区断砂组合输导油气的差异特征进行了研究,结果表明:源上和源外斜坡区断砂组合输导油气特征差异性主要表现在以下3个方面:①断砂组合输导油气方向的差异性,源上区断砂组合输导油气方向为先垂向后侧向,以垂向为主;而源外斜坡区断砂组合输导油气方向为侧向,断裂仅起侧接作用。②断砂组合输导油气剖面形式的差异性,源上区断砂组合输导油气剖面形式主要有牙刷状和树枝状2种;而源外斜坡区断砂组合输导油气剖面形式主要有同层阶梯状和跨层阶梯状2种。③断砂组合输导油气平面形式的差异性,源上区断砂组合输导油气平面形式为始于断裂的线状;源外斜坡区断砂组合输导油气平面形式为穿过断裂的线状。In order to determine hydrocarbon distribution characteristics and rules between areas above source and slope areas outside source,the differences about oil and gas transportation by fault-sandbody configuration of two areas were studied by analysis of relationship between hydrocarbon distribution and transportation forms by fault-sandbody configuration,which is based on hydrocarbon accumulation model and transportation channel of two areas in Songliao and Bohai Bay Basin.The results show that there are three aspects about differences of oil and gas transportation by fault-sandbody configuration.The first difference is migration direction.The direction of hydrocarbon migration by fault-sandbody configuration in the areas above source is from vertical to lateral.The vertical direction is dominant.In the slope areas outside source,the direction is lateral and fault only plays a side connection role.The second difference is profile form of oil and gas transportation by fault-sandbody configuration.There are two main forms of oil and gas transportation by fault-sandbody configuration in profile in the areas above the source,which are toothbrush and branch shape.The slope areas outside source also has two transportation forms in profile,which are stair shape in the same layer and cross-layer.The third difference is plane form of oil and gas transportation by fault-sandbody configuration.The form of oil and gas transportation by fault-sandbody configuration on the plane in the areas above source is linear from fault,however it is linear cutting fault in slope areas outside source.

关 键 词：源上区 源外斜坡区 断砂组合 油气输导特征差异性 松辽盆地 渤海湾盆地 

分 类 号：P618.13[天文地球—矿床学]