水驱油藏特高含水期非线性渗流产生条件  

Generating condition of non-linear flow in water-flooding reservoir at ultra-high water-cut stage

作　　者：张贤松 

机构地区：[1]中海石油研究中心,北京100027

出　　处：《中国石油大学学报（自然科学版）》2009年第2期90-93,共4页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：国家'863'计划资助项目(2003AA602140)

摘　　要：将渗流雷诺数作为非达西流产生的判定条件,基于油藏数值模拟方法,对油水两相渗流中非线性流产生条件及影响因素进行系统分析。研究表明:油水两相渗流中非线性流产生的条件苛刻,它只会在特高含水开发后期油藏中的高渗层或大孔道层中出现,对水驱油总体开发规律影响较小;油藏中高渗层或大孔道层的厚度对非线性渗流的产生及分布影响最大。Based on numerical reservoir simulation method and taking Reynold＇s number of flow as the criteria of non-Darcy flow, systematic analysis of non-linear flow generating condition and influence factors was performed for oil-water two-phase flow. It is indicated that the generating conditions of non-linear flow for two-phase flow are very exacting, which only occur in high-permeability layers or the layers with high capacity channels at the late development stage of ultra-high water cut. And the non-linear flow has little effect on integral development rules. The thickness of high-permeability layers or the layers with high capacity channels has a great effect on the generation and distribution area of non-linear flow.

关 键 词：水驱 非线性流 非达西流 特高含水期 影响因素 

分 类 号：TE312[石油与天然气工程—油气田开发工程]