尹楠鑫,罗超,吴斌,代洁,陈岑,罗波波,范人杰,李乐乐.东濮凹陷文33断块沙二下亚段浅水三角洲沉积特征[J].西北地质,2022,55(2):135-145 YIN Nanxin,LUO Chao,WU Bin,DAI Jie,CHEN Cen,LUO Bobo,FAN Renjie,LI Lele.Sedimentary Characteristics of Shallow Water Delta in the Lower Member of Sha 2 Formation in W33 Fault Block[J].Northwestern Geology,2022,55(2):135-145
东濮凹陷文33断块沙二下亚段浅水三角洲沉积特征
Sedimentary Characteristics of Shallow Water Delta in the Lower Member of Sha 2 Formation in W33 Fault Block
投稿时间:2021-12-26  修订日期:2022-01-24
DOI:10.19751/j.cnki.61-1149/p.2022.02.011
中文关键词:  文33断块;浅水三角洲;沙二下亚段;相标志;沉积微相
英文关键词:W33 fault block;shallow water delta;lower member of Sha 2 formation;facies mark;sedimentary microfacies
基金项目:国家科技重大专项“大型油气田及煤层气开发”(2016ZX05015);重庆市自然科学基金面上项目“页岩储层压裂液渗吸滞留及解除水锁微观作用机制研究”(cstc2019jcyj-msxmX0725);重庆市教育委员会科学技术研究项目“页岩储层自然返排缓解水相圈闭损害机理研究”(KJQN201901531),“多信息耦合条件下的三角洲前缘构型建模技术研究”(KJQN202101546)联合支助。
作者单位
尹楠鑫 重庆科技学院石油与天然气工程学院/复杂油气田勘探开发重庆市重点实验室, 重庆 401331 
罗超 重庆科技学院石油与天然气工程学院/复杂油气田勘探开发重庆市重点实验室, 重庆 401331 
吴斌 重庆工业职业技术学院, 重庆 401120 
代洁 重庆科技学院石油与天然气工程学院/复杂油气田勘探开发重庆市重点实验室, 重庆 401331 
陈岑 重庆科技学院石油与天然气工程学院/复杂油气田勘探开发重庆市重点实验室, 重庆 401331 
罗波波 中国石化中原油田勘探开发学研究院, 河南 郑州 450018 
范人杰 重庆科技学院石油与天然气工程学院/复杂油气田勘探开发重庆市重点实验室, 重庆 401331 
李乐乐 重庆科技学院石油与天然气工程学院/复杂油气田勘探开发重庆市重点实验室, 重庆 401331 
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中文摘要:
      针对文南油田文33断块沙二下亚段油藏储层沉积微相展布特征认识不清、开发效果差、开发方案的部署及调整难度大等问题,笔者综合利用研究区的地质、测井等资料,通过岩石成分、结构、泥岩颜色、沉积构造及测井响应等沉积相标志综合分析,再结合研究区区域沉积背景,精细刻画了沙二下亚段浅水三角洲沉积特征,剖析了沉积微相的展布规律。结果表明,文33断块沙二下亚段浅水三角洲由于其湖水较浅,河流营力起主导作用,储层以条带状展布的水下分流河道砂体为主,其次是薄层水下分流河道侧翼和席状砂,河口坝欠发育;储层测井响应存在4个大类、10个亚类的曲线形态特征;最后,根据沉积微相的展布特征建立沙二下亚断的沉积相模式,从而为油田下一步挖潜提供地质依据。
英文摘要:
      In view of the problems such as unclear understanding of the distribution characteristics of sedimentary microfacies, poor development effect, difficult deployment and adjustment of development scheme, etc. Based on the geological and logging data of the study area, through the comprehensive analysis of sedimentary facies markers such as rock composition, structure, mudstone color, sedimentary structure and logging response, and combined with the regional sedimentary background of the study area, this paper finely depicts the sedimentary characteristics of shallow water delta in the lower sub member of shahejie-2 and analyzes the distribution law of sedimentary microfacies. The results show that the shallow water delta in the lower ES2 sub member of Wen 33 fault block is dominated by river forces due to its shallow lake water. The reservoir is dominated by banded underwater distributary channel sand body, followed by thin underwater distributary channel flank and sheet sand, and the estuary bar is underdeveloped. There are 4 categories and 10 subclasses of curve morphological characteristics in reservoir logging response. Finally, according to the distribution characteristics of sedimentary microfacies, the sedimentary facies model of the lower sub fault of Shahejie-2 is established, so as to provide geological basis for further tapping the potential of the oilfield.
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