塔里木盆地巴楚隆起HT1井区志留系层序地层分析和隐蔽圈闭识别  

Sequence stratigraphic analysis and subtle trap identification of Silurian around well HT1,Bachu Uplift,Tarim Basin

作　　者：周雨双[1] 李群[1] 姜海健[1] 何金海[2] 张瑜[3] 

机构地区：[1]中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所,江苏无锡214151 [2]成都理工大学能源学院,成都610059 [3]中国石油化工股份有限公司石油勘探开发研究院,北京100083

出　　处：《石油实验地质》2011年第4期359-363,共5页Petroleum Geology & Experiment

摘　　要：利用层序地层学和坡折带理论,对塔里木盆地HT1井区的钻/测井、地震、岩心等资料进行分析,将志留系划分为2个三级层序(SQ1,SQ2)和6个体系域。古地貌和沉积相特征研究认为,加里东晚期—海西早期盆地收缩加剧,和田河古隆起进一步隆升形成北倾斜坡,总体以潮坪沉积为主。并总结该区形成岩性圈闭的地质条件,识别出4个形态圈闭。Based on sequence stratigraphy and slope-break theories, Silurian stratum around well HT1 in the Bachu Uplift of the Tarim Basin has been divided into 2 3rd-grade sequences （SQ1 and SQ2） and 6 systems according to the analyses of drilling, logging, seismic and core data collected from the study area. Studies of ancient landscape and sedimentary facies have indicated that, from the late Caledonian to the early Hercynian, the Tarim Basin contracted severely and the Hetianhe ancient uplift rose to form northward slope （mainly of tide flat facies）. Geologic conditions for the formation of lithologic trap in the study area have been concluded and 4 configuration traps have been identified.

关 键 词：层序地层 坡折带 隐蔽圈闭 志留系 塔里木盆地 

分 类 号：TE121.3[石油与天然气工程—油气勘探]