ISSN 1673-8217 CN 41-1388/TE
主管:中国石油化工集团有限公司 主办:中国石油化工股份有限公司河南油田分公司
李明云, 孙晓明. 2008: 塔中地区志留系沉积相及层序地层研究. 石油地质与工程, 22(02): 11-13+17+9.
引用本文: 李明云, 孙晓明. 2008: 塔中地区志留系沉积相及层序地层研究. 石油地质与工程, 22(02): 11-13+17+9.
2008: Sequence stratigraphy and sedimentary facies of Silurian in the central area of Tarim basin. Petroleum Geology and Engineering, 22(02): 11-13+17+9.
Citation: 2008: Sequence stratigraphy and sedimentary facies of Silurian in the central area of Tarim basin. Petroleum Geology and Engineering, 22(02): 11-13+17+9.

塔中地区志留系沉积相及层序地层研究

Sequence stratigraphy and sedimentary facies of Silurian in the central area of Tarim basin

  • 摘要: 利用岩心刻度测井建立塔中志留系无障壁潮坪沉积模式和沉积微相解释模型,划分出2个亚相6个微相;应用钻/测井和生产动态资料,通过不整合面、湖泛面等层序界面和沉积旋回的识别,建立了塔中地区志留系层序地层格架,将其划分为3个三级层序和18个准层序组,其中每个三级层序均由海侵体系域和高位体系域构成;结合体系域内准层序在垂向上的叠置样式,指出有利含油气储层在体系域或准层序组中分布范围。研究成果对层序地层学在海陆过渡相地层中的对比和应用以及在塔中地区寻找地层岩性圈闭油藏具有一定的借鉴意义。

     

    Abstract: On the basis of core-scaling logging data,a model and its logging data interpretation of Silurian sedimentary micro -facies of tide flat without barrier in central area of Tarim basin are established,and two sedimentary sub-facies and five micro-facies are classified.By identifying the sequence interfaces and sedimentary cycle such as unconformity sur- face and lacustrine flooding surface,the framework of se- quence stratigraphy of the Silurian in central area of Tarim basin is set up.Three third-level sequences and eighty sub- sequence sets are classified,of which every three-level se- quence is composed of transgressive system tract(TST)and high stand system tract(HST).By combining with the ver- tical superposing style of subsequences in the system tract, presented is the distribution area of favorite hydrocarbon- containing reservoirs in the system tract or the subsequence set.These results can be used for reference in the research on strata correlation in the transitional phase of marine and non-marine sequence,and in the exploration of stratigraph- ic and lithological pools in central area of Tarim basin.

     

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