新疆石油地质 ›› 1993, Vol. 14 ›› Issue (1): 58-64.

• • 上一篇    下一篇

关于压力导数计算方法的研究

谭向农   

  1. 新疆石油管理局勘探开发研究院 克拉玛依 834000
  • 收稿日期:1992-02-12 出版日期:1993-03-01 发布日期:2020-08-06

A STUDY ON THE ESTIMATION OF PRESSURE DIRIVATIVE FOR TRANSIENT PRESSURE DATA

Tan Xiangnong   

  1. Research Institve of Exploration and Development,xinjiang Petroleum Administration Bureau, Karamay 834000
  • Received:1992-02-12 Online:1993-03-01 Published:2020-08-06

摘要: 典型曲线及压力导数分析法在现代试井分析中已广泛使用,但关于压力导数计算方法的问题却一直未能得到很好地解决,因而直接影响了试井解释的最终结果,本文从微分法的原理出发给出了N点一元线性回归求导方法,并较详细地介绍了“窗口”求导技术,对变产量试井数据也给出了相应的求导算法,较好地解决了试井分析中压力导数计算的方法问题。

关键词: 试井分析, 压力导数, 计算方法

Abstract: Type curves and pressure dirivatives are widely used in modern well test analysis,The estimation of low noisy pressure dirivative is however a difficult problem.A“WINDOW"technique is introduced in this paper for estimating pressure dirivatives.An algrithm for variable rate test data is also presented. low noisy dirivatives can be obtained with the techniques.

Key words: well test analysis, Pressure dirlvative, Algarithm