| 苏里格气田西区 S47区块石盒子组八段沉积微相 |
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| 引用本文： | 王振国,;杨仁超,;路中奇,;赵忠军,;崔明明,;远义飞.苏里格气田西区 S47区块石盒子组八段沉积微相[J].山东地质,2014(3):38-44. |
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| 作者姓名： | 王振国 ;杨仁超 ;路中奇 ;赵忠军 ;崔明明 ;远义飞 |
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| 作者单位： | [1]山东科技大学地质学院,山东青岛266590; [2]中国石油长庆油田分公司苏里格气田研究中心,陕西西安710018 |
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| 摘 要： | 鄂尔多斯盆地苏里格气田是我国陆上产能最大的气田，其主力产气层---二叠纪石盒子群八段岩性致密，储层的分布主要受沉积微相控制。但S47区块作为苏里格气田西区一个重要的新区，有关沉积微相的认识仍存在分歧。在岩心观察、钻井资料及样品分析的基础上，重点研究了S47区块盒8段沉积微相，认为该区盒8段属辫状河三角洲前缘沉积，并识别出水下分流河道、河口坝、席状砂、水下天然堤、分流间湾等5种微相；最有利的储集砂体主要为水下分流河道叠置砂体，其次为河口坝砂体。沉积微相及其展布特征的新认识为该区储层预测、水平井整体开发提供了地质理论依据。
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| 关 键 词： | 鄂尔多斯盆地 苏里格气田 石盒子组 辫状河三角洲 沉积微相 |
Detailed Sedimentary Facies of the 8th Member of Shihezi Formation in the Block S47 in Western Sulige Gas Field |
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| Institution: | WANG Zhenguo, YANG Renchao, LU Zhongqi, ZHAO Zhongjun, CUI Mingming, YUAN Yifei |
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| Abstract: | Sulige gas field in Ordos basin is the largest terrestrial gas production field in China .As a typical tight sandstone gas pool , distribution of reservoirs of the main gas -producing strata in Sulige gas field---the 8th mem-ber of Shihezi formation in Permian system （P2h8 for short）, is mainly controlled by detailed sedimentary facies .But disagreements about detailed sedimentary facies still exist in the Block S 47---an important new region in the west-ern part of Sulige gas field .Detailed sedimentary facies of P 2h8 in the Block S47 were studied on the basis of drilling core observation , analysis of well logs and samples .It is considered that the strata of P 2h8 in the Block S47 was de-posited in braided delta front , which can be further sub -divided into subaqueous distributary channel , estuary bar , sand sheet , subaqueous levee and interdistributary bay etc .5 detailed sedimentary facies .The most favorable reser-voir is subaqueous distributary channel overlaid sand bodies and estuary bar sand bodies secondarily .New under-standings on detailed sedimentary facies and distribution features provide theoretical foundations for reservoir predic -tion and integrated exploitation by horizontal wells in the Block S 47. |
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| Keywords: | Ordos basin Sulige gas field Shihezi formation braided delta detailed sedimentary facies |
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