两种注气开采技术的油藏能量利用效率比较研究  

A Comparative Study on Reservoir Energy Efficiencies Between Two CrudeOil Recovery Technologies by Air Injection

作　　者：许强辉[1] 昝成[2] 马德胜[2] 史琳[1] 

机构地区：[1]清华大学热科学与动力工程教育部重点实验室,北京100084 [2]中国石油勘探开发研究院提高石油采收率国家重点实验室,北京100083

出　　处：《工程热物理学报》2015年第6期1164-1169,共6页Journal of Engineering Thermophysics

基　　金：国家自然科学基金创新研究群体(No.51321002)

摘　　要：本文针对中温氧化生热(MICO)和高温火烧油层(ISC)技术开展了油藏能量利用效率比较研究。通过氧化反应区的能量守恒估计燃料消耗量,建立变边界条件的无量纲导热方程并通过数值方法计算氧化前缘推进过程中的油藏热损失量,结合采收率-已燃体积法预测产油动态,发展了一套反五点注采单元.MICO和ISC的生产和能量利用的评价方法,评价了MICO技术的狭义能油比(EOR)的优势。本案例分析表明:MICO的狭义能油比与ISC相比可降低42%~47%。Reservoir energy efficiencies during crude oil recovery were comparatively studied between in situ combustion(ISC) and moderate temperature intelligent catalytic oxidation(MICO).Fuel consumptions were evaluated by local energy balance of reaction zones,and energy loss was obtained by numerically studying dimensionless thermal conduction problems with variable boundary conditions.Combined with recovery-volume burned method,oil production and energy utilization could be evaluated in an inverted five-spot reservoir.Narrow energy to oil production ratios(EOR)were studied respectively.The results showed the EOR of MICO is 42%~47%less than that of ISC.

关 键 词：中温氧化生热技术 火烧油层 采收率-已燃体积法 热损失 能量利用效率 

分 类 号：TE357.7[石油与天然气工程—油气田开发工程]