摘要
本文用系统辨识方法和一维渗流微分方程的差分格式进行气井见水时间预测,试图特机理模型与统计方法结合起来解决油藏工程中某些难题。文中给出基本公式,讨论克服多解性的约束条件以及见水时间预测方法,并以中坝须二气藏中63井为计算实例。
The water breakthrough time in gas well is predicted by using the system identification method and the difference scheme of one-dimensional differential equation of filtering flow, attempting to solve some difficult problems in reservoir engineering by combining the mechanism model with the statistics. The paper gives the basic formulas and discusses on overcoming the restricting conditions in multi-solution method and the prediction method of water breakthrough time,well Zhong-63 in Xu-2 gas reservoir of Zhongba gas field is calculated as a practical example.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
1992年第1期25-31,9,共7页
Natural Gas Industry
关键词
系统辨识
油藏工程
水驱气藏
system identification,reservoir engineering,numerical simulation, parameter estimation, water drive gas reservoir.
