成都理工大学学报（自然科学版）2017，Vol.44Issue(4)：489-493,5.DOI:10.3969/j.issn.1671-9727.2017.04.12
深层致密气藏扩展指数递减模型及其在新场须五气藏的应用
Application of stretched exponential production decline model to the Xu-5 deep tight gas reservoir of Xinchang, Sichuan, China
摘要
Abstract
The property of stretched exponential production decline model (SEPD) is studied and the way of seeking the parameter for SEPD is exercised in order to explore production decline analysis for deep tight gas reservoir.Theoretical derivation and comprehensive analysis for the Xu-5 reservoir reveal that the SEPD is characterized by "three parameters","one correlation" and "boundedness",and accordingly,a method of multiple position sampling and gradient descent is proposed to obtain parameters for the model.The application of SEPD to the Xu-5 (Member 5 of Upper Triassic Xujiahe Formation) gas reservoir in Xinchang area indicates that production decline characteristics of Xu-5 are in accordance with SEPD,and the multiple position sampling and gradient descent method can effectively obtain the model parameters.Therefore,this method is important in the prediction and evaluation of production of gas field.关键词
SEPD/递减分析/有界性/梯度下降法/预测/评价Key words
SEPD/decline analysis/boundedness/gradient descent method/forecast/reserve分类
天文与地球科学引用本文复制引用
詹泽东,郭科,段永明,邓伟飞,郑家友..深层致密气藏扩展指数递减模型及其在新场须五气藏的应用[J].成都理工大学学报（自然科学版）,2017,44(4):489-493,5.基金项目
中国石化西南油气田科研项目(14KF-28) （14KF-28）
中国石化西南油气田生产项目(GJ-332-1426). （GJ-332-1426）
