考虑热损失的稠油热采有限多井试井模型  

FINITE MULTI-WELL TESTING MODEL FOR HEAVY OIL THERMAL RECOVERY UNDER CONSIDERATION HEAT LOSS

作　　者：刘永良[1] 贾永禄[1] 康毅力[1] 霍进[2] 

机构地区：[1]油气藏地质及开发工程国家重点实验室·西南石油大学 [2]中油新疆油田公司

出　　处：《钻采工艺》2008年第1期79-81,共3页Drilling & Production Technology

基　　金：四川省杰出青年学科带头人培养基金项目(2007Q14-041;02ZQ026-042);中国石油天然气股份有限公司科技风险创新研究项目

摘　　要：采用通用的稠油热采单井系统试井模型分析加密钻井后的稠油油藏,难以得到准确的分析结果。为此,根据稠油油藏的渗流特征,建立了考虑热损失和邻井为生产井的稠油热采有限多井试井模型。应用压力在拉氏空间叠加的新方法,导出了模型的Laplace空间解。利用Stehfest数值反演,绘制了样板曲线,并分析了主要油藏地质和工程参数对样板曲线的影响。结果表明,考虑热损失时油井压力受邻井的影响不明显;而不考虑热损失时,稠油油藏开发中后期的油井压力受邻井的影响较为明显。研究考虑热损失的稠油热采有限多井试井可对稠油油藏进行更深入的描述。It is very difficultly to obtain the accurate analysis results by using the common single-well system model for heavy oil thermal recovery analyze the infilling drilling heavy oil reservoir.This paper,the finite multi-well test model with consideration of heat loss and adjacent production wells is established based on the characteristics of seepage flow of heavy oil reservoir.Using new pressure superposition method deduces the Laplace solution.Then the type-curves is drawn by using Stehfest numerical inversion,and the effects of major geological and reservoir engineering parameters on type-curves are discussed.The result indicates that the influence of adjacent wells on oil production is not obvious when considering heat loss,the influence of adjacent wells on oil production would be obvious in the middle-late life of oilfield development without consideration of heat loss.The research on finite multi-well testing model for heavy oil thermal recovery under consideration of heat loss is possible to carry on a thorough description to the heavy oil reservoir.

关 键 词：稠油 复合油藏 蒸汽驱 数学模型 多井试井 

分 类 号：TE353[石油与天然气工程—油气田开发工程]