新疆石油地质

新疆石油地质 ›› 2009, Vol. 30 ›› Issue (3): 373-375.

• 应用技术 • 上一篇    下一篇

不规则污染井的流线数值试井解释模型及其应用

吴明录, 姚军   

  1. 中国石油大学 石油工程学院,山东 东营 257061
  • 收稿日期:2008-09-09 修回日期:2008-12-05 出版日期:2009-06-01 发布日期:2020-10-29
  • 作者简介:吴明录(1978-),男,山东潍坊人,博士,渗流力学,(Tel)13854690263(E-mail)w97612@163.com.
  • 基金资助:
    中国博士后科学基金项目,水平井压力测试数值解释方法(20080431219)资助

Streamline Numerical Well-Testing Interpretation Model for Irregularly Contaminated Wells with Application

WU Ming-lu, YAO Jun   

  1. School of Petroleum Engineering, China University of Petroleum, Dongying, Shandong 257061, China
  • Received:2008-09-09 Revised:2008-12-05 Online:2009-06-01 Published:2020-10-29

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摘要： 采用流线方法和有限差分方法分别对生产和测试阶段的数学模型进行数值求解,得到了不规则污染井的压力响应特征曲线。对压力响应特征曲线的分析表明,在测试井各方向的污染程度相同和不相同两种情况下,不同的表皮系数下压力导数曲线在径向流阶段有重合和不重合两种特征,而两种情况下的径向流动形态均不改变。编制了流线数值试井解释软件,并结合油田应用实例,证明了软件及模型的实用性。

关键词: 污染, 表皮系数, 试井, 流线, 压力恢复曲线

Abstract: The pressure response characteristic curves for irregularly contaminated wells are obtained by solving the models of the two stages using streamline method and finite difference method, respectively. It is indicated from analysis of pressure response characteristie curves that in radial flow period, the pressure derivative curves will coincide in condition of different skin factors, when the contaminated degrees of testing well in different directions are the same, otherwise, they will not coincide, and radial flow formns under the two circumstances do not change. Also, the streamline numerical well-testing interpretation software is worked out. The case study indicates the feasibility of the software and the models in field application.

Key words: contamination, skin factor, well test, streamline, pressure build-up curve

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