石油学报 ›› 1994, Vol. 15 ›› Issue (3): 76-83.DOI: 10.7623/syxb199403010

• 石油开发 • 上一篇    下一篇

加密井、调整井地层压力的参数识别与拟合

张允真1, 赵达壮1, 张兆银2, 杨树林2   

  1. 1. 大连理工大学;
    2. 辽河油田
  • 收稿日期:1992-04-01 修回日期:1993-08-17 出版日期:1994-07-25 发布日期:2013-07-08
  • 基金资助:
    国家自然科学基金

PARAMETER IDENTIFICATION AND MATCHING IN THE PREDICTION OF RESERVOIR PRESSURE IN INFILL WELLS AND ADJUSTING WELLS

Zhang Yunzhen1, Zhao Dazhuang1, Zhang Zhaoyin2, YangShulin2   

  1. 1. Dalian University of Technology;
    2. Drilling &PrOduction Research Institute, Laohe Oilfield
  • Received:1992-04-01 Revised:1993-08-17 Online:1994-07-25 Published:2013-07-08

摘要: 用反算法识别地质和流体的综合物理参数,在给定井点产量或注水量和井底压力条件下,对压力场进行拟合,以求得加密井位或调整井位的层中压力.避免用正算法必须给定地质和流体的各种物理参数,而且宏观地包含了类似井点附近的油层污染、断层等特殊情况对压力场的作用.结果表明,拟合的精度高,与实测数据比较误差小于10%.

关键词: 加密井, 地层压力预测, 数学模型, 有限元法, 拟合, 计算

Abstract: Demonstrates how to identify the comprehensive physical parameters of geology and fluids by means of backward algorithm. It can fit the pressure field under given well productionor injection rates. So the pressure within the infill and adjusting wells can be calculated neednot to know physical parameters of geology and fluids macroscopically in forward algorithm.Meanwhile,it can include the effect of some special cases on pressure field,such as reservoirdamage and fauIted formation etc. of the nearby wellsite. Oilfield test indicate that thismethod has a high accuraey and the relative error between predicted ones and field measure-ment is less than 10%.

Key words: infiliing well, formation pressure prediction, mathematical model, finite element method, match, computation