油气勘探

孔洞型碳酸盐岩储集层中洞对电阻率的影响

  • 何家欢 ,
  • 李闽 ,
  • 周克明 ,
  • 杨雨 ,
  • 谢冰 ,
  • 李农 ,
  • 党录瑞 ,
  • 唐雁冰
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  • 1. 西南石油大学油气藏地质及开发工程国家重点实验室,成都610500;
    2. 中国石油西南油气田勘探开发研究院,成都610213;
    3. 中国石油集团公司碳酸盐岩储集层重点实验室,杭州310023;
    4. 中国石油西南油气田公司,成都610051
何家欢(1984-),男,四川南充人,博士,中国石油西南油气田公司勘探开发研究院工程师,主要从事油气渗流理论、气藏开发工程及岩石物理实验研究工作。地址:四川省成都市天府新区天研路218号,邮政编码:610213。E-mail: HeJiahuan@petrochina.com.cn

收稿日期: 2019-08-07

  网络出版日期: 2020-05-19

基金资助

国家自然科学基金“致密气多相多尺度流动规律及跨尺度耦合渗流”(U1562217)

Effects of vugs on resistivity of vuggy carbonate reservoirs

  • HE Jiahuan ,
  • LI Min ,
  • ZHOU Keming ,
  • YANG Yu ,
  • XIE Bing ,
  • LI Nong ,
  • DANG Lurui ,
  • TANG Yanbing
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  • 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China;
    2. Institute of Exploration and Development, PetroChina Southwest Oil and Gas Field Company, Chengdu 610213, China;
    3. Key Laboratory of Carbonate Reservoir, CNPC, Hangzhou 310023, China;
    4. PetroChina Southwest Oil and Gas Field Company, Chengdu 610051, China

Received date: 2019-08-07

  Online published: 2020-05-19

摘要

通过提取孔洞型碳酸盐岩储集层孔隙结构特征参数,利用逾渗网络模拟技术计算孔洞型储集层基质电阻率,建立分段式跨尺度电阻率计算方法。利用有限元法模拟计算孔洞型储集层电阻率。在此基础上,建立孔洞型碳酸盐岩储集层洞孔隙度和洞含水饱和度与岩石电阻率的数学模型,得到洞孔隙度和洞含水饱和度与储集层电阻率的关系。结合实验分析验证模拟计算结果的可靠性,为孔洞型碳酸盐岩储集层电阻率测井解释提供新的技术手段和研究方法。研究结果表明,基质孔隙度和洞孔隙度占比以及基质孔隙中的含水饱和度才是决定储集层岩石电阻率的关键因素。图9参39

本文引用格式

何家欢 , 李闽 , 周克明 , 杨雨 , 谢冰 , 李农 , 党录瑞 , 唐雁冰 . 孔洞型碳酸盐岩储集层中洞对电阻率的影响[J]. 石油勘探与开发, 2020 , 47(3) : 490 -498 . DOI: 10.11698/PED.2020.03.05

Abstract

The pore structure characteristic parameters of vuggy carbonate reservoirs were extracted, and matrix resistivity of vuggy reservoir was calculated by the percolation network simulation. A segmented cross-scale resistivity calculation method was established, in which the finite element method was used to simulate the resistivity of vuggy reservoirs. The mathematical models of vug porosity and water saturation with rock resistivity in vuggy carbonate reservoir were established, and the relationships between them were obtained. Experimental results verified the reliability of the simulation results. The method presented provides new technical means and research method for the resistivity log interpretation of vuggy carbonate reservoirs. The matrix porosity, vug porosity and matrix pore water saturation are the key factors determining the resistivity of reservoir rocks.

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