石油勘探与开发 >

2021 , Vol. 48 >Issue 5: 939 - 949

DOI: https://doi.org/10.11698/PED.2021.05.06

油气勘探

中国典型陆相盆地致密油成储界限与分级评价标准

  • 周能武 ,
  • 卢双舫 ,
  • 王民 ,
  • 黄文彪 ,
  • 肖佃师 ,
  • 焦晨雪 ,
  • 王璟明 ,
  • 田伟超 ,
  • 周磊 ,
  • 陈方文 ,
  • 刘薇 ,
  • 汪志璇
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  • 中国石油大学（华东）深层油气重点实验室,山东青岛 266580
周能武（1993-）,男,湖北孝感人,博士,中国石油大学（华东）地球科学与技术学院在读博士,主要从事非常规油气地质研究。地址：山东省青岛市西海岸新区长江西路66号,中国石油大学（华东）非常规油气研究中心,邮政编码：266580。E-mail: B18010019@upc.edu.cn

收稿日期: 2021-01-09

  网络出版日期: 2021-09-17

基金资助

国家科技重大专项（2016ZX05046-001-005）; 国家自然科学基金（41922015）

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Limits and grading evaluation criteria of tight oil reservoirs in typical continental basins of China

  • ZHOU Nengwu ,
  • LU Shuangfang ,
  • WANG Min ,
  • HUANG Wenbiao ,
  • XIAO Dianshi ,
  • JIAO Chenxue ,
  • WANG Jingming ,
  • TIAN Weichao ,
  • ZHOU Lei ,
  • CHEN Fangwen ,
  • LIU Wei ,
  • WANG Zhixuan
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  • Key Laboratory of Deep Oil and Gas, China University of Petroleum (East China), Qingdao 266580, China

Received date: 2021-01-09

  Online published: 2021-09-17

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摘要

基于松辽盆地下白垩统泉头组和上白垩统青山口组砂岩、准噶尔盆地玛湖地区下三叠统百口泉组砂砾岩和吉木萨尔凹陷二叠系芦草沟组混积岩等中国典型陆相盆地致密储集层微观孔喉表征结果,利用水膜厚度法、含油产状法、试油产能法、力学平衡法对致密油的理论下限、成藏下限、有效渗流下限和成储上限进行厘定;采用聚类分析法对比不同致密储集层孔喉结构差异,确定致密储集层分级界限,并分析与成储界限之间的关联。结果表明,致密储集层与常规储集层的分级界限对应物性上限,Ⅱ类与Ⅲ类致密储集层的分级界限对应有效渗流下限,Ⅲ类与Ⅳ类致密储集层的成储界限对应成藏下限,理论下限对应致密储集层和非储集层的界限。分级评价标准实际应用结果显示,致密油产量受控于致密储集层类型,Ⅰ类和Ⅱ类致密储集层是致密油高产的有利层段。图8表3参37

关键词： 致密油; 致密储集层; 成储界限; 分级评价标准; 甜点评价; 松辽盆地; 准噶尔盆地

本文引用格式

周能武 , 卢双舫 , 王民 , 黄文彪 , 肖佃师 , 焦晨雪 , 王璟明 , 田伟超 , 周磊 , 陈方文 , 刘薇 , 汪志璇 . 中国典型陆相盆地致密油成储界限与分级评价标准[J]. 石油勘探与开发, 2021 , 48(5) : 939 -949 . DOI: 10.11698/PED.2021.05.06

Abstract

Based on the microscopic pore-throat characterization of typical continental tight reservoirs in China, such as sandstone of Cretaceous Qingshankou and Quantou formations in Songliao Basin, sandy conglomerate of Baikouquan Formation in Mahu area and hybrid rock of Lucaogou Formation in Jimusaer sag of Junggar Basin, the theoretical lower limit, oil accumulation lower limit, effective flow lower limit and the upper limit of tight oil reservoirs were defined by water film thickness method, oil bearing occurrence method, oil testing productivity method and mechanical balance method, respectively. Cluster analysis method was used to compare the differences in pore-throat structure of different tight reservoirs, determine the grading criterion of tight reservoirs, and analyze its correlation with the limit of reservoir formation. The results show that the boundary between tight reservoir and conventional reservoir corresponds to the upper limit of physical properties, the boundary of class II and class III tight reservoirs corresponds to the lower limit of effective flow, the boundary of class III and class IV tight reservoirs corresponds to the lower limit of reservoir forming, and the theoretical lower limit of tight reservoir corresponds to the boundary between tight reservoir and non-reservoir. Finally, the application results of the grading evaluation criterion show that the tight oil productivity is highly controlled by the type of tight reservoir, and class I and class II tight reservoirs are the favorable sections for high production of tight oil.

Key words： tight oil; tight reservoir; reservoir formation limit; grading evaluation standard; sweet spot evaluation; Songliao Basin; Junggar Basin

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