火烧油层燃烧反应数学模型研究  

Study on Mathematical Models of the Reaction of In-situ Combustion

作　　者：张方礼[1] 刘其成[1] 赵庆辉[1] 张勇[1] 程海清[1] 

机构地区：[1]中油辽河油田公司,辽宁盘锦124010

出　　处：《特种油气藏》2012年第5期55-59,153,共5页Special Oil & Gas Reservoirs

基　　金：大型油气田及煤层气开发科技重大专项"渤海湾盆地辽河坳陷中深层稠油开发技术示范工程"部分内容(2008ZX05053)

摘　　要：针对稠油油藏火烧油层特点,利用Arrhenius公式,采用燃料转化率方法,建立了火烧油层三维四相七组分燃烧动力学模型,推导出多孔介质条件下原油各组分热解与氧化反应速率表达式。通过双膜理论解决了各组分在相间的质量传递及相平衡关系,并根据各组分在多孔介质中分子扩散与对流弥散关系,建立了火烧油层燃烧过程中各组分的质量、能量守恒方程,为火烧油层物理模拟、数值模拟及现场试验方案设计提供了可靠的依据。Mathematical models of combustion kinetics of three-dimensional four phases and seven components are established and the formulae of pyrolyzation and oxidization of all conponents of crude oil are derived under conditions of porous media in view of the properties of reservoir in-situ combustion,using Arrhenius formula and adopting fuel conversion percentage.The relationships between mass transfer and phase equilibrium among all components are established by means of double-film theory and both mass conservation equation and energy conservation equation for the combustion process of in-situ combustion are also established based on the relationship of molecular diffusion and convective-dispersive of all components in porous medium,thus providing reliable bases for the physical simulation of in-situ combustion and field test design.

关 键 词：火烧油层 燃烧动力学 数学模型 稠油油藏 三维四相七组分 

分 类 号：TE357.44[石油与天然气工程—油气田开发工程]