油气藏评价与开发 ›› 2019, Vol. 9 ›› Issue (2): 75-79.

• 非常规油气 • 上一篇    下一篇

基于常规测井资料综合评价延川南致密砂岩气层

王安龙   

  1. 中国石化华东油气分公司勘探开发研究院,江苏 南京 210011
  • 收稿日期:2018-04-27 出版日期:2019-04-26 发布日期:2019-05-07
  • 作者简介:王安龙(1984—),男,工程师,测井解释及储量研究。

Comprehensive evaluation of dense sandstone gas layer in southern Yanchuan area based on conventional logging data

Wang Anlong   

  1. Research Institute of Petroleum Exploration and Development, East China Oil and Gas Company, SINOPEC, Nanjing, Jiangsu 210011, China
  • Received:2018-04-27 Online:2019-04-26 Published:2019-05-07

摘要:

研究提出利用常规测井资料有效评价致密砂岩气储层的解释思路及解释方法。在解释思路上,采用传统定量解释与特殊评价相结合的综合评价思路;在评价方法上,采用在地质背景分析基础上,分构造、分沉积建立岩电评价参数;分物性建立可变岩电参数;在分析储层岩性、物性背景及敏感曲线特征基础上采用三孔隙度含气指示法有效判别气层属性。通过与实验数据及大量测试结果对比,气层识别准确率明显提高。

关键词: 致密气储层, 测井解释, 可变岩电参数, 含气指示法

Abstract:

In this paper, we proposed the interpretation thought and method for the tight sandstone gas reservoirs. Firstly, we took the comprehensive evaluation method, combining the traditional quantitative interpretation with the special evaluation and the analysis of geological background to establish the parameters of rock electricity evaluation by dividing structure and deposition. Then, we used the variation of porosity to establish the variation of rock electrical parameters. Based on the analysis of reservoir lithology, physical property background and sensitive curve characteristics, we used the gas bearing attributes of three kinds of porosity curves to identify the gas reservoir attributes. By comparing with the test data and a large number of test results, the accuracy of gas reservoir identification was improved obviously.

Key words: tight gas reservoir, log interpretation, variation of rock electrical parameters, indication method of gas bearing

中图分类号: 

  • P631.84