中国地质调查局青岛海洋地质研究所主办
高级检索

低渗砂岩的变围压应力敏感性实验评价

,  ,  , 

文章导航 > 海洋地质前沿 > 2012 > 28(6): 60-64

上一篇

下一篇

任和爱, 赵世旭, 李成福, 肖文联. 低渗砂岩的变围压应力敏感性实验评价[J]. 海洋地质前沿, 2012, 28(6): 60-64.
引用本文: 任和爱, 赵世旭, 李成福, 肖文联. 低渗砂岩的变围压应力敏感性实验评价[J]. 海洋地质前沿, 2012, 28(6): 60-64.
shu
REN Heai, ZHAO Shixu, LI Chengfu, XIAO Wenlian. EXPERIMENT EVALUATION OF STRESS SENSITIVITY OF LOW-PERMEABILITY SANDSTONE TO CONFINING PRESSURE[J]. Marine Geology Frontiers, 2012, 28(6): 60-64.
Citation: REN Heai, ZHAO Shixu, LI Chengfu, XIAO Wenlian. EXPERIMENT EVALUATION OF STRESS SENSITIVITY OF LOW-PERMEABILITY SANDSTONE TO CONFINING PRESSURE[J]. Marine Geology Frontiers, 2012, 28(6): 60-64.
shu

低渗砂岩的变围压应力敏感性实验评价

  • 1 中石化华北分公司勘探开发研究院, 郑州 450006;

  • 2 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;

  • 3 延长石油集团公司油气勘探公司, 陕西延安 716000

  • 基金项目:

    国家科技重大专项"鄂尔多斯盆地大牛地致密低渗气田勘探开发示范工程"项目(2008ZX05045)

详细信息
    作者简介: 任和爱(1958-),女,工程师,主要从事石油勘探开发研究工作.E-mail:heai5808@163.com

  • 中图分类号: P584

EXPERIMENT EVALUATION OF STRESS SENSITIVITY OF LOW-PERMEABILITY SANDSTONE TO CONFINING PRESSURE

  • 1 Research Institute of Exploration and Development, North China Company, SINOPEC, Zhengzhou 450006, China;

  • 2 State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China;

  • 3 Yanchang Petroleum Group and Gas Exploitation Company, Yan'an 716000, Shanxi, China

    摘要
  • 变围压实验是目前普遍应用的评价储层岩石应力敏感性的方法。尽管有不少人采用变内压实验研究储层岩石的应力敏感性,但是由于变内压实验比变围压实验操作上更困难,因此,目前人们仍然多采用变围压实验来评价储层岩石的渗透率应力敏感性。以变围压应力敏感性实验的理论基础Terzaghi有效应力方程为切入点,从机理上分析发现在低渗砂岩储层中Terzaghi有效应力不能真实反应储层的有效应力,基于Terzaghi有效应力的变围压实验的评价结果并不能代表储层岩石的应力敏感性,不能用该方法评价低渗砂岩储层的应力敏感性。同时给出了修正的基于变围压实验的应力敏感性评价方法,使之能更加客观地评价低渗砂岩储层的应力敏感性。最后以低渗砂岩储层的实验数据为例,采用修正后的方法进行了应力敏感性研究。研究结果表明,根据修正后的评价方法得到的结果更加接近地层条件下储层岩石的应力敏感性。
    The experiment of changing confining pressure is one of the most popular methods used nowadays for evaluating the stress sensitivity of a rock,since it is easy to be carried out,even though the experiment of changing pore pressure is still used sometimes by some researchers.The method is theoretically founded on the Terzaghi's effective stress law.We studied the mechanism of the law and found that Terzaghi's effective stress can not really reflect the effective stress in the rock and hence the changing confining pressure experiment is inappropriate to be used for evaluation of the stress sensitivity of low-permeability sandstones.There needs some modification and improvement.In this paper,we modified the method of experiment and presented the improved experimental results for a low-permeability sandstone gas reservoir.Our data show that the results obtained by the modified method are better in approaching the stress sensitivity of the rock in its original condition.
    • HTML全文
  • 加载中
    • 相关文章
  • 施引文献
  • 资源附件(0)
  • 加载中
计量
  • 文章访问数:  262
  • PDF下载数:  5
  • 施引文献:  0
出版历程
收稿日期:  2012-03-20

目录

    版权所有：中国地质调查局发展研究中心 copyright @2020
    返回