新疆石油地质

新疆石油地质 ›› 2007, Vol. 28 ›› Issue (2): 235-237.

• 应用技术 • 上一篇    下一篇

双重孔隙压敏介质试井解释及其在塔河油田的应用

王子胜1, 姚军1, 刁先伟2   

  1. 1.中国石油大学 山东 东营 257061;
    2.中国石化 西北分公司 勘探开发研究院, 乌鲁木齐 830011
  • 收稿日期:2006-07-04 修回日期:2006-08-22 出版日期:2007-04-01 发布日期:2020-07-31
  • 作者简介:王子胜(1980-), 男, 河南原阳人, 在读博士研究生, 渗流力学,(Tel) 13561030952(E-mail) reservoirs@sohu.com.
  • 基金资助:
    国家“十五”重大攻关项目, 中国油气资源发展关键技术(2001BA605A-03-03-01)资助

Pressure-Sensitive Dual Porosity Medium Well Test Interpretation and Its Application in Tahe Oilfield

WANG Zi-sheng1, YAO Jun1, DIAO Xian-wei2   

  1. 1. China University of Petroleum, Dongying, Shandong 257061, China;
    2. Research Institute of Exploration and Development, Northwest Branch, Sinopec, Urumqi, Xinjiang 830011, China
  • Received:2006-07-04 Revised:2006-08-22 Online:2007-04-01 Published:2020-07-31

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摘要： 建立了双重孔隙压敏介质油藏的试井解释模型,该模型是由基岩系统和裂缝系统组成,并考虑了裂缝渗透率随压降呈指数下降的规律,采用隐式差分格式对考虑井筒储存和污染效应的情况进行了求解。讨论了无因次渗透率模数和表皮系数对压力响应的影响。研究结果表明,无因次渗透率模数导致压力及压力导数明显上升,而其对压力及压力导数的影响与表皮系数明显不同。将该理论在塔河油田进行了实际应用,并对一口进行过两次测试的油井的渗透率变化进行了计算,计算结果表明,该理论实用性较强,和油田实际符合较好。

关键词: 塔河油田, 压敏介质, 试井解释, 应用

Abstract: A well test interpretation model for reservoirs with dual porosity pressure-sensitive medium is developed, which takes fractural permeability decreasing exponentially with drawdown into consideration. The wellbore storage and skin factor effects are calculated using fully implicit finite-difference form. The influences of dimensionless permeability modulus and skin factor on pressure response are discussed. The results show that the dimensionless permeability modulus will cause the increases of pressure and pressure derivative rather than the skin factor. The theory is applied to Tahe oilfield and an oil well tested twice is interpreted by it. The case study indicates that the theory has a good practicability and a consistency with field conditions.

Key words: Tahe oilfield, pressure-sensitive medium, well test interpretation, application

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