塔河油田志留系沉积相及层序地层学研究
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摘要
通过综合分析岩心和测井资料认为,塔河地区古生界志留系碎屑岩地层沉积相以潮坪和浅海陆棚沉积为主,微相以高潮坪、低潮坪、中潮坪及浅海陆棚泥为主。综合岩石地层、生物地层及地震地层研究成果,结合沉积体系及构造地质背景分析,塔河地区志留系碎屑岩地层自下而上可划分为3个三级层序,SQ1层序低位体系域为中潮坪沉积,海浸体系域为浅海陆棚泥沉积;SQ2层序低位体系域以低潮坪沉积为主,海浸体系域不发育;SQ3层序低位体系域以中潮坪为主,海浸体系域早期沉积以低潮坪为主,晚期过渡为中潮坪沉积。
According to the analysis of coring and logging data,this paper believes the tidal-flat and shallow-marine shelf is the main facies of Silurian in Tahe area.The main micro-sedimentary facies is characterized by high tidal-flat,low tidal-flat,middle tidal-flat,and shallow-marine shelf mud.In combination with the analysis of litho stratigra phy,bio-stratigraphy and seismic stratigraphy,the clastic rock strata of Silurian in Tahe area could be divided into three third-sequence from bottom to top,middle tidal-flat is the main facies in LST of SQ1,and the main facies in TST is shallow-marine shelf mud.LST in SQ2 are dominated by middle tidal-flat,and there are no TST in SQ2.LST in SQ3 are composed of middle tidal-flat sediments,early TST of SQ3 is dominated by low tidal-flat sediments,and middle tidal-flat is the main facies in late HST.
According to the analysis of coring and logging data,this paper believes the tidal-flat and shallow-marine shelf is the main facies of Silurian in Tahe area.The main micro-sedimentary facies is characterized by high tidal-flat,low tidal-flat,middle tidal-flat,and shallow-marine shelf mud.In combination with the analysis of litho stratigra phy,bio-stratigraphy and seismic stratigraphy,the clastic rock strata of Silurian in Tahe area could be divided into three third-sequence from bottom to top,middle tidal-flat is the main facies in LST of SQ1,and the main facies in TST is shallow-marine shelf mud.LST in SQ2 are dominated by middle tidal-flat,and there are no TST in SQ2.LST in SQ3 are composed of middle tidal-flat sediments,early TST of SQ3 is dominated by low tidal-flat sediments,and middle tidal-flat is the main facies in late HST.
引文
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[2]孟召平,朱绍军,张润钊.塔里木盆地塔河油田三叠系砂岩储层特征及其敏感性评价[J].石油地质与工程,2008,22(1):1-5
[3]刘飞,周文,邓礼正,等.塔河西南上古生界碎屑岩储层物性影响因素分析[J].物探化探计算技术,2007,29(4):317-322
[4]陈元壮,王毅,张达景,等.塔里木盆地塔河地区南部志留系油气成藏特征[J].石油实验地质,2008,30(1):32-37
[5]张育民,王冰,欧光习.塔里木盆地孔雀河地区侏罗系油气成藏期次研究[J].石油地质与工程,2006,20(5):2-6
[6]肖学,胡俊卿,吴建平,等.塔里木盆地阿北-顺北区块古近系油气成藏条件[J].石油地质与工程,2006,20(6):16-17,37
[7]李明云,孙晓明.塔中地区志留系沉积相及层序地层研究[J].石油地质与工程,2008,22(2):11-14
[8]朱美衡,郭建华,伍永田,等.阿克库勒地区三叠系层邓地层及对储集砂体的控制作用[J].西安石油大学学报(自然科学版),2007,22(5):1-5
[9]郭长敏.塔里木盆地志留系柯坪塔格组没积相及平面展布[J].天然气技术,2008,2(1):19-23
[10]朱如凯,罗平,何东博,等.塔里木盆地塔中地区志留系柯坪塔格组沉积相与沉积模式[J].古地理学报,2005,7(2):197-206
[11]贾进华,张宝民,朱世海,等.塔里木盆地志留纪地层、沉积特征与岩相古地理[J].古地理学报,2006,8(3):339-353
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