石油学报 ›› 1985, Vol. 6 ›› Issue (4): 83-86.DOI: 10.7623/syxb198504014

• 论文 • 上一篇    下一篇

一种计算油井地层压力的方法

徐传德   

  1. 中国海洋石油勘探开发研究中心
  • 收稿日期:1984-10-20 出版日期:1985-10-25 发布日期:2013-07-08

A METHOD OF CALULATING CURRENT FORMATIONPRESSURE IN WELLS

Xu Chuande   

  1. Exploration and Development Center, China National Offshore Oil Corporation
  • Received:1984-10-20 Online:1985-10-25 Published:2013-07-08

摘要: 本文建立在常规不稳定试井理论基础上,利用“压力恢复速度”概念和“最小二乘法”原理导出一种计算油井目前地层压力方法。这种方法借助电算克服图解技术处理压力恢复数据的随意性,从而提高计算压力精度。经油田上340口井次计算表明,该方法与我国大庆油田曾经习惯应用的“松Ⅰ法”计算结果完全吻合,即两种方法计算压力值绝对误差|△P|≤2大气压时符合率达92.5%。因此,这种方法矿场可以应用。

Abstract: A method of calculating the current reservoir pressure based on the rate of pressure build-up using the least square principle is introduced. With the help of computer, the arbitrariness of manual treatment of data is overcome and the accuracy of pressure calculation is improved. Calculations by computer for 340 wells show that the absolute error tally with that of Song I Method to the extent of 92.5% when the absolute error is at |△P|≤2 bar atm.