论文详情

苏里格气藏滑脱作用影响下的渗流机理模式

石油钻采工艺

2006年 28卷第2期

阅读：67

查看详情

Title

Study on porous flow mechanics effected by slippage in Sulige gas reservoir

作者

姚尚林尚根华单文文焦晓红

Authors

YAO Shang-lin SHANG Gen-hua SHAN Wen-wen JIAO Xiao-hong

单位

中国科学院渗流流体力学研究所, 河北廊坊 065007 中国石油化工勘探开发研究院, 北京 100083 华北油田公司勘探开发研究院, 河北任丘 062552

摘要

通过试验和理论相结合的方法建立了考虑科林贝尔效应的低渗透气藏非线性渗流方程。通过渗流流量和压力相关试验测定了滑脱修正系数和渗流指数以及渗流系数,并将该方程的计算结果和现场产量做了对比,证明了该方法的正确性。气体渗流存在着滑脱效应,特别是在低渗、低速和低压时,滑脱效应更为显著。该项研究成功实现了对低渗透气藏的产量动态预报,为低渗透气田开发设计和开采方案优化提供了一项强有力的技术手段,为进一步开展低渗透气藏渗流理论研究、油藏工程研究和动态分析建立了基础。

Abstract

Based on percolation mechanism analysis of low permeability gas reservoirs,combined the effect of Klinkenberg,established non-linear percolation mathematical model.Measured coefficient of slippage,seepage index and seepage coefficient by experiment,and compared calculated results with spot results and verified the effectiveness of this method.Slippage effect exists in porous media flow,especially when pressure,velocity or permeability,it is very obvious,also gas flow equation in porous media with a slippage effect was presented.This research has provide a strong technical support for the optimization of development plans and recovery schemes.

关键词：

低渗透气藏; 渗流指数; 滑脱修正系数; 渗流系数; 渗透率;

Keywords:

low permeability gas reservoir; seepage index; modified coefficient of slippage; seepage coefficient; permeability;

基金项目

DOI

10.3969/j.issn.1000-7393.2006.02.013