白豹-坪庄地区长6油层组沉积相特征  

Sedimentary facies characteristics of Chang 6 member in Baibao-Pingzhuang Area

作　　者：苏洁[1] 陈恭洋[1] 张路崎[1] 李会[1] 

机构地区：[1]长江大学油气资源与勘探技术教育部重点实验室,湖北荆州434023

出　　处：《断块油气田》2009年第2期29-31,共3页Fault-Block Oil & Gas Field

摘　　要：鄂尔多斯盆地上三叠统延长组第6段在白豹-坪庄地区是最重要的勘探目的层之一。通过岩心、测井和地质资料综合分析,认为该区长6油层组砂体发育的是一套三角洲前缘亚相砂体,包括水下分流河道、河道侧翼、河道间和河口砂坝4种微相。进一步编制沉积微相平面图,分析长6油层组各砂体的沉积特征和沉积微相的平面展布规律,证明该区有2个物源,以北东物源为主;且长63层是主力储层,其物性最好。The sixth member of Yanchang Formation is one of major exploration target zones in Baibao-Pingzhuang Area in Upper Triassic, Ordos Basin. Through the analysis of core, logging and geologic data, the Chang 6 member consists of a set of deltaic front subfacies sandbodies in this area, including the subsea distributary channel, channel frank, interchannel and channel mouth bar microfacies. Based on the analysis of depositional characteristics of Chang 6 member and depositional mierofaeies distribution rules in plane, we get the fact that there are two material sources in this area through the drawing of sedimentary mierofaeies plane diagram, in which the material source of northeast direction is main. Chang 63 member is the main reservoir and its physical property is the best.

关 键 词：沉积相特征 长6油层组 延长组 白豹-坪庄地区 

分 类 号：TE121.3[石油与天然气工程—油气勘探]