鄂尔多斯盆地镇北—演武地区长3段含油性分析及有利区预测  

Oil-bearing Potential and Prediction of Favorable Oil-bearing Reservoirs of Chang 3 Formation in the Zhenbei-Yanwu Region

作　　者：何文祥[1,2] 彭倩[1,2] 郭玮[1,2] 刘军锋[3] 

机构地区：[1]长江大学地球化学系,湖北荆州434023 [2]油气资源与勘探技术教育部重点实验室,湖北荆州434023 [3]长庆油田公司第二采油厂,甘肃庆阳751001

出　　处：《天然气地球科学》2009年第6期916-922,共7页Natural Gas Geoscience

基　　金：国家重点基础研究发展计划("973")项目"大幅度提高石油采收率的基础研究"(编号:G1999022150)资助.

摘　　要：以储层地质学、开发地质学和地球化学的相关原理为指导,采用一个原则、一个规律及一个依据的预测模式对鄂尔多斯盆地镇北—演武地区长3油藏有利含油区进行了综合研究。一个原则即两个为主、一个为辅的原则;一个规律即储层沉积规律;一个依据即以试油或开发数据为依据。研究表明,水下分流河道和河口坝微相发育区是镇北长3段有利的含油相带;厚砂岩沉积区是含油的有利砂体发育区;隆起高部位是含油的有利构造部位;地球化学运移指标急剧变化的主流方向是油气富集的方向。An integrated geology research was used to predict favorable oil-bearing reservoirs in the Zhenbei-Yanwu region according to the principle of reservoir geology, development geology and geochemistry. The method includes a principle, a rule and a gist. The basic principle is that two are dominant and one is auxiliary. The rule is namely sedimentary regularity. The gist is both development data and test data. The result shows that the facies of subaqueous distributary channel and estuary bar are the favorable oil-bearing facies of Chang 3 in Zhenbei-Yanwu. The sedimentary region of thick sandbody is favorable sandbody. The high part of paleo／｜uplift is advantageous structure. The rapid-change direction of geochemistry migration index indicates the direction of oil accumulation.

关 键 词：镇北-演武地区 有利含油区 鼻状隆起 运移指标 

分 类 号：TE132.1[石油与天然气工程—油气勘探]