稠油油藏出砂冷采渗流机理研究  

Percolation mechanism of sand-carrying cold production in heavy oil reservoir

作　　者：王正茂 闫存章 刘明新 

机构地区：[1]中油勘探开发研究院,北京100083 [2]中油股份公司勘探与生产分公司,北京100011

出　　处：《特种油气藏》2005年第1期39-42,共4页Special Oil & Gas Reservoirs

基　　金：国家 973项目"中国低效油气田高效开发基础理论研究"的部分成果 (2 0 0 1CB2 0 91 0 8)

摘　　要：为了研究稠油油藏出砂冷采的渗流机理 ,准确预测其开采动态 ,在对储层岩土和砂粒受力分析的基础上 ,建立了骨架砂剥离判断准则和可动砂启动判断准则 ;运用有效应力原理、质量守恒原理、虚位移原理和虚功等效原则 ,建立了稠油油藏出砂冷采三维四相多组分渗流数学模型和岩土单元平衡方程 ,并探讨其求解方法。In order to understand the percolation mechanism of sand-carrying cold production in heavy oil reservoirs and to predict production performance, force-summing on reservoir rock and sand grains is analyzed, the criteria for judging matrix sand and movable sand is established. A numerical model of 3D, four phases, multicomponent percolation and a balance equation for rock unit are established and solved by using effective stress theory, mass conservation theory, virtual displacement theory and lost work equivalence principle. The establishment of this model is significant to understanding and efficient development of heavy oil reservoirs.

关 键 词：稠油油藏 出砂冷采 渗流机理 判断准则 

分 类 号：TE345[石油与天然气工程—油气田开发工程]