从电阻率数据中得到相对渗透率的新方法

doi:10.11743/ogg20150421

石油与天然气地质 ›› 2015, Vol. 36 ›› Issue (4): 695-700.doi: 10.11743/ogg20150421

从电阻率数据中得到相对渗透率的新方法

马东^1,2, 吴华³, 曾鸣⁴

1. 长江大学油气资源与勘探技术教育部重点实验室, 湖北武汉 430100;
2. 长江大学石油工程学院, 湖北武汉 430100;
3. 江汉油田勘探开发研究院, 湖北武汉 433124;
4. 中海油服油田生产事业部, 天津 300452

收稿日期:2015-03-10 修回日期:2015-05-20 出版日期:2015-08-08 发布日期:2015-08-28
作者简介:马东(1984—),男,博士、讲师,油层物理和油藏工程。E-mail:madong@yangtzeu.edu.cn。
基金资助:
国家油气重大专项(2011ZX05015-002);湖北省自然科学基金项目(2015CFB635);“油气资源与勘探技术”教育部重点实验室项目(K2014-05)。

A new method for estimating relative permeability with resistivity data

Ma Dong^1,2, Wu Hua³, Zeng Ming⁴

1. Key Laboratory of Oil & Gas Resources and Exploration Technology, Ministry of Education, Yangtze University, Wuhan, Hubei 430100, China;
2. Petroleum engineering College, Yangtze University, Wuhan, Hubei 430100, China;
3. Research Institute of Exploration and Development, SINOPEC Jianghan Oilfield Company, Qianjiang, Hubei 433124, China;
4. Production Management Department, CNOOC China Oilfield Services. Limted, TianJin 300452, China

Received:2015-03-10 Revised:2015-05-20 Online:2015-08-08 Published:2015-08-28

摘要/Abstract

摘要：

相对渗透率是储层评价、油田开发和油藏数值模拟等方面的重要参数，一般通过稳态和非稳态法来获取相对渗透率数据。由于相对渗透率实验所需周期长、成本高，且条件较为苛刻，因此获取相对渗透率数据具有一定难度，而通过现场电阻率测井和室内实验则较为容易获取电阻率数据。本文通过毛细管束模型和阿尔奇电阻率公式，并在引入迂曲度的情况下，推导了一种从电阻率数据中计算相对渗透率数据的新方法。通过文献数据和实验数据对新方法的计算精度进行了验证。结果表明，从电阻率数据得到的水相相对渗透率数据具有很高的精度。在缺少相对渗透率数据的情况下，可以通过新方法从电阻率数据中估算水相相对渗透率。

关键词: 相对渗透率, 电阻率, 迂曲度, 毛细管束模型

Abstract:

Relative permeability is a key parameter in reservoir description, oil & gas field development and numerical reservoir simulation.Steady-state and unsteady-state methods are often used for determining the parameter.However, the relative permeability can't easily be obtained through the experiments as they are often time-consuming, expensive, and sometimes require certain experimental conditions.In contrast, resistivity data are easy to get through laboratory measurements and well logging.This paper proposes a new method of getting relative permeability by using easily-obtained resistivity data through a combination of capillary tube model and Archie equation and introduction of tortuosity.The method was verified by data from the published literatures and experiment results.It shows that the relative permeability of water phase obtained through the method is highly comparable to that acquired through experiment method.So when relative permeability data are inadequate or unavailable, we can estimate the relative permeability of water phase by using the method based on resistivity data.

Key words: relative permeability, resistivity, tortuosity, capillary tube model

中图分类号:

TE31

马东,吴华,曾鸣. 从电阻率数据中得到相对渗透率的新方法[J]. 石油与天然气地质, 2015, 36(4): 695-700. doi: 10.11743/ogg20150421 Ma Dong,Wu Hua,Zeng Ming. A new method for estimating relative permeability with resistivity data[J]. Oil & Gas Geology, 2015, 36(4): 695-700. doi: 10.11743/ogg20150421

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从电阻率数据中得到相对渗透率的新方法

A new method for estimating relative permeability with resistivity data

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