地球物理学进展 ›› 2018, Vol. 33 ›› Issue (1): 274-278.doi: 10.6038/pg2018BB0114

• 应用地球物理学Ⅰ(油气及金属矿产地球物理勘探) • 上一篇    下一篇

一种实用的定量表征岩石视压实率和视胶结率的实验方法

徐登辉1(),王燕2,韩学辉1,*(),聂俊光1,姚冰1,李昊1,江家洋1   

  1. 1. 中国石油大学(华东)地球科学与技术学院,山东青岛 266555
    2. 中国石油测井有限公司新疆分公司,新疆克拉玛依 834000
  • 收稿日期:2017-07-18 修回日期:2018-01-09 出版日期:2018-02-20 发布日期:2018-07-03
  • 通讯作者: 韩学辉 E-mail:1131925545@qq.com;hanxuehui@upc.edu.cn
  • 作者简介:徐登辉,男,1992年生,硕士研究生,研究方向为岩石物理实验.(E-mail: 1131925545@qq.com)
  • 基金资助:
    国家自然科学基金(U1562108);国家科技重大专项(2017ZX05009001);“十三五”专项(2016ZX05011-002)

Experimental method for quantitative characterization of apparent compaction rate and apparent cementation rate

XU Deng-hui1(),WANG Yan2,HAN Xue-hui1,*(),NIE Jun-guang1,YAO Bing1,LI Hao1,JIANG Jia-yang1   

  1. 1. School of Geosciences, China University of Petroleum(East China), Shandong Qingdao 266555, China
    2. China petroleum logging Company Limited Xinjiang branch,Xinjiang Karamay 834000,China;
  • Received:2017-07-18 Revised:2018-01-09 Online:2018-02-20 Published:2018-07-03
  • Contact: Xue-hui HAN E-mail:1131925545@qq.com;hanxuehui@upc.edu.cn

摘要:

对于目前分布最为广泛的砂岩储层,压实和胶结等成岩作用会影响砂岩储层的物性、弹性等物理性质并最终决定岩石颗粒的接触性质和孔隙结构特征.根据前人的研究,定量表征岩石压实和胶结作用的参数主要有视压实率和视胶结率、成岩综合系数等.目前尚缺乏一套系统完整的实验方法来确定岩石的成岩系数.实际应用时,前人多根据经验公式和薄片资料来确定原始孔隙度和胶结物含量,误差较大,流程复杂.本文立足实验手段,在前人研究的基础上,提出了一套系统的实验室确定视压实率和视胶结率的方法.结果表明,实验获得的视压实率、视胶结率与孔隙度、渗透率以及分选系数等存在较好的相关关系,符合前人研究的结果.

Abstract:

Sandstone forms the most widely distributed reservoirs in the world. The diagenesis procedures of the sandstone, such as compaction and cementation, affect its physical and elastic properties and ultimately determine the contact properties of the sand grains and the pore structures. Based on previous studies, the main parameters that can be used to quantitatively characterize the compaction and cementation of the rock include the apparent compaction rate, apparent cementation rate and the comprehensive coefficient of diagenesis. However, up until now, there is no systematic experimental method developed for determining the diagenesis coefficient. In practice, most of the previous methods are based on empirical formula and slice data to determine the original porosity and cement content with large error and complex process. Based on the previous research, this paper puts forward a set of methods to determine the apparent compaction rate and apparent cementation rate. The results show that there is a good correlation between apparent compaction rate, apparent cementation rate and porosity, permeability and separation coefficient which are consistent with the result of previous studies.

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