新疆石油地质 ›› 2008, Vol. 29 ›› Issue (5): 607-609.

• 油藏工程 • 上一篇    下一篇

单井化学示踪剂测残余油饱和度段塞解释模型

裴连君1, 张君吉力2, 李晓山2   

  1. 1.北京海金岩石油技术开发公司,北京102200;
    2.中国石油新疆油田分公司油藏评价处,新疆克拉玛依834000
  • 收稿日期:2008-03-17 发布日期:2020-10-19
  • 作者简介:裴连君(1961-),男,北京人,博士,油田开发, (E-mail)pljhugs@yahoo.com.cn.

A Chemical Tracer Plug Interpretation Model for Well Residual Oil Saturation Test

PEI Lian-jun1, ZHANG Jun-jie2, LI Xiao-shan2   

  1. 1. Beijing Haijinyan Petroleum Technology Development Company, Beijing 102200, China;
    2. Department of Reservoir Evaluation, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China
  • Received:2008-03-17 Published:2020-10-19

摘要: 提出了用于单井段塞式注入化学示踪剂测残余油饱和度的理论解释模型,即段塞解释模型。与以往脉冲式解释模型比较,该模型既符合矿场实际的注入条件,即段塞式注入,又不要求示踪剂是纯净的,使得示踪剂费用降低90%以上,适用于关井期间地下示踪剂带无显著飘移的矿场测试结果的解释。数值模拟表明,原始示踪剂与次生示踪剂回采剖面体积(称为滞留体积)的比值对扩散不敏感。该解释模型与数值模拟确定的残余油饱和度之间的误差小于0.5%;与单井的脉冲解释模型对比,解释精度提高2%.

关键词: 化学, 示踪剂, 残余油饱和度

Abstract: This paper presents a chemical tracer plug interpretation model for well residual oil saturation. This model advantages over past pulse interpretation model in accordance with real injected conditions and wide tracer selections as well as much lower cost of used tracers. It can be used for interpretation of field test results from in-situ tracer zone without obvious drift in shut-in oil wells. The numerical simulation indicates that the hold-up volume ratio determined by recovery section between original tracer and secondary tracer is not sensitive to the tracer diffusion. Compared with past numerical simulation results, the difference of residual oil saturation given by these two methods could be less than 0.5%PV, and compared with well pulse interpretation model, 2% can be increased in interpreted precision using this model.

Key words: chemistry, tracer, residual oil saturation

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