稠油注蒸汽层内化学生热温度场计算  

Calculation of temperature field in heavy oil reservoirs with steam injection and chemical thermogenesis

作　　者：黄勇 蒲春生 吴飞鹏 

机构地区：[1]中国石油大学(华东)石油工程学院重质油国家重点实验室,山东青岛266555

出　　处：《应用化工》2012年第2期365-368,共4页Applied Chemical Industry

基　　金：山东省自然基金项目(ZR2010EM014);中国石油大学(华东)自主创新科研计划项目(27R1102060A)

摘　　要：稠油吞吐井注汽过程中,由于沿程热损失,到达油层深部的蒸汽温度较低,不能有效提高远井带油层温度,导致单井控制范围有限,因而采用层内化学生热提温技术,将生热剂段塞注入设计的油层区域,依靠生热剂反应放出大量热,提高油层深部地层温度。针对地层物理模型,根据单元体平衡法,结合傅里叶定律、牛顿公式和反应动力学方程,建立了层内传热数学模型,并对一口井进行了实例计算和分析。结果表明,采用化学生热技术,能够提高油层温度40℃左右,加热了蒸汽难以提温的远井带,改善原油流变性,促进原油流向井底,提高了单井产量。Due to heat loss of steaming process in huff and puff,steam temperature was low after it reached reservoir deep,it was not effective to enhance temperature of far wells areas,and limited control area in single well,so chemical thermogenesis technique for temperature rise was applied,the chemical agent was injected in designate reservoir areas,it depended on chemical agents reaction to release large amount of heat,and increased temperature of reservoir deep.According to equilibrium in cell cube,for reservoir physical model,combined Fourier law,Newton formula and reaction kinetics equation,the heat transport model was established,and a case was calculated and analyzed.The results indicated,with chemical thermogenesis technique,it can enhance reservoir temperature about 40 ℃,heat far wells areas where steam was hard to do,improve rheological property of heavy oil,promote heavy oil driving to bottom hole and raise single well yield.

关 键 词：温度场 化学生热 模型 提温 稠油 

分 类 号：TQ021.3[化学工程] TE357.44[石油与天然气工程—油气田开发工程]