鄂尔多斯盆地LF地区长6油藏主控因素及有利区预测  

Main control factors and favorable area prediction of Chang6 reservoir in LF area,Ordos basin

作　　者：马轮[1] 王海军 程鑫[1] 刁宗宝[1] 梁利平[1,3] 吴汉宁[1] 

机构地区：[1]大陆动力学国家重点实验室/地质学系.西北大学,陕西西安710069 [2]中煤科工集团西安研究院 [3]中国石油长庆油田公司输油处

出　　处：《石油地质与工程》2012年第3期6-10,136,共5页Petroleum Geology and Engineering

基　　金：陕西省普通高等学校重点学科专项资金(地球探测与信息技术;081802);西北大学研究生交叉学科资助项目(09YJC17)联合资助

摘　　要：以储层地质学、测井地质学、油气田开发地质学等相关原理为指导,对鄂尔多斯盆地LF地区三叠系延长组长6地层进行了小层精细划分,对长6油藏的烃源岩、沉积相、砂体特征、构造特征、储层特征等成藏主控因素进行了系统研究。认为巨厚的烃源岩是油气成藏的基础;水下分流河道和河口坝微相是该区长6段有利的含油相带;隆起高部位是含油的有利构造部位;高闭合度的鼻状隆起对油气藏形成具有重要的控制作用;良好盖层是油气藏形成的重要条件。在此基础上优选出有利含油区带,为LF地区下一步勘探部署提供指导。On the guidance of reservoir geology,logging geology,oil-gas field development geology and related principle,the fine division of small layers on Triassic Chang6 formation in LF area of Ordos basin have been made.The source rocks,sedimentary facies,sand body characteristics,structural feature and reservoir characteristics etc,the main controlling factors of Chang6 have been systemically researched.The study results indicate that the thick source rocks is the foundation of the hydrocarbon accumulation and underwater distributary channel,the debouch bar microfacies is the favorable oil phase belt of Chang6 section,the uplift high place is the favorable structural parts of hydrocarbon,the high degree of the closed nose-like uplifts plays an important controlling role on reservoir forming,good cap rock is the important condition of reservoir forming.Optimized favorable petroleum zones based on the above method provide good guidance for the further explorative deployment in LF area.

关 键 词：鄂尔多斯盆地 长6油藏 主控因素 有利区 成藏 

分 类 号：TE112.31[石油与天然气工程—油气勘探]