期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
四川盆地中北部DB1井区灯影组四段沉积相及储层特征 被引量:3
1
作者 陈泓位 王时林 +3 位作者 和源 王君 秦启荣 赵建民 《油气地质与采收率》 CAS CSCD 北大核心 2024年第3期31-41,共11页
四川盆地中北部(川中北部)灯影组四段(灯四段)储层岩性复杂,非均质性较强,限制了灯影组四段气藏的勘探。为了进一步深化川中北部DB1井区的沉积相及储层特征认识,通过钻井岩心及薄片资料的观察,并结合测井、录井、物性测试以及钻探成果... 四川盆地中北部(川中北部)灯影组四段(灯四段)储层岩性复杂,非均质性较强,限制了灯影组四段气藏的勘探。为了进一步深化川中北部DB1井区的沉积相及储层特征认识,通过钻井岩心及薄片资料的观察,并结合测井、录井、物性测试以及钻探成果等资料的综合分析,对川中北部DB1井区灯四段沉积相及储层特征进行研究。结果表明:研究区灯四段主要发育台地边缘和局限台地2种沉积亚相,进一步可识别出藻丘、颗粒滩和滩间海等沉积微相,其中藻丘微相主要发育藻凝块云岩和藻叠层云岩,颗粒滩微相主要发育砂屑云岩,滩间海微相主要发育泥晶云岩和粉晶云岩;藻丘和颗粒滩沉积主要发育在台缘一侧,向台内藻丘和颗粒滩沉积逐渐减少,以滩间海沉积为主;藻丘发育呈纵向叠置特征,横向延伸较近,且集中发育在灯四段上亚段,单体厚度较大,下亚段发育较少且厚度较薄;储集岩类型主要为藻凝块云岩、藻叠层云岩和砂屑云岩,储集空间主要为藻黏结格架孔、粒间溶孔和晶间溶孔;研究区岩心孔隙度分布在2.02%~6.03%,总体平均孔隙度为3.11%,岩心渗透率分布在0.00704~9.78 mD,总体平均渗透率为0.69264 mD,整体物性具有低孔特低渗透特征,部分样品由于受到裂缝的影响呈现低孔高渗透特征。 展开更多
关键词 沉积微相 展布特征 储层特征 灯影组四段 四川盆地中北部
在线阅读 下载PDF
Relation between structural evolution of the Longmenshan orogenic zone and sedimentation of its foreland basin 被引量:2
2
作者 LIAO Tai-ping HU Jing-jing +2 位作者 ZHANG Fu-rong CHEN Hong-kai SUN Hong-quan 《Mining Science and Technology》 EI CAS 2009年第6期807-812,共6页
In order to determine the area for oil and gas exploration in China’s north Sichuan basin,we have divided the time during which the Longmenshan foreland basin was formed into five periods,based on the sedimentary res... In order to determine the area for oil and gas exploration in China’s north Sichuan basin,we have divided the time during which the Longmenshan foreland basin was formed into five periods,based on the sedimentary response relationship of the foreland basin to structural evolution: 1) a late Triassic Noric period;2) an early-Middle Jurassic period;3) a late Jurassic to early Cretaceous period;4) a late Cretaceous to Paleogene-Neogene period and 5) the Quaternary period. As well,we analyzed the sedimentary environment and lithologic features of every basin-forming period. The results show that there are several favorable source-reservoir-cap assemblages in our study area,making it a major region for future oil and gas exploration in China’s northern Sichuan basin. 展开更多
关键词 structural evolution foreland basin sedimentary response orogenic zone LONGMENSHAN
在线阅读 下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部