稠油油藏热流耦合“两箱”分析模型及应用研究

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摘要在热采过程中存在热、流、固等多场耦合作用，目前的研究方法和分析模型存在一定不足。针对油藏特点，提出油藏热质传递过程的“两箱”分析法，即用于一般分析的“黑箱分析法”和用于精细分析的“白箱分析法”，“黑箱分析法”不涉及油藏多孔介质内部热质传递过程，研究油藏与外界的能量传递过程，以及体系内能量的变化，而“白箱分析法”包括“黑箱分析法”的内容，同时要研究体系内部各部分间的能量转换过程。在此基础上，应用CMG软件进行数值模拟计算和分析，对于热采注汽过程中的蒸汽凝结区域和蒸汽凝结前缘位置，给出分析和判定方法。该研究结果可为深入开展稠油热采注汽过程流体运移特性和提高油气采收率研究提供依据。

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关键词 ：数值模拟；热采油藏；&ldquo, 两箱&rdquo, 分析法；耦合模型；蒸汽凝结前缘

Abstract：There are coupled thermo-hydro-mechanical processes in the thermal recovery producing and their analysis models and methods are insufficient at present. According to development characteristics of heavy oil reservoir，the “two boxes” analytical methods in the reservoir heat and mass transfer processes are proposed. “Black box” analytical method as a general analytical method rules out internal heat and mass transmission in reservoir porous media，and includes energy transfer process between reservoirs and outside and energy change within the system. “White box” analytical method as a fine analytical method contains “black method” and it also studies energy conversion process system among internal parts. On this basis，numerical simulation and analysis by CMG software are carried out and the judgment criterion of finding vapor condensation area and its front finger during thermal recovery is proposed. This research gives basic theories for further research of flow characteristics in heavy oil thermal recovery injection process and improvement of the oil and gas recovery during tertiary recovery.

Key words： numerical simulation;thermal recovery reservoirs;“two boxes&rdquo analytical methods;coupled model;vapor condensation area front finger

收稿日期: 2011-09-26

引用本文:

王志国1，2，陈键1，杨文哲1，2，张文福1，3，宋永臣2. 稠油油藏热流耦合“两箱”分析模型及应用研究[J]. 岩石力学与工程学报, 2012, 31(5): 1007-1015.
WANG Zhiguo1，2，CHEN Jian1，YANG Wenzhe1，2，ZHANG Wenfu1，3，SONG Yongchen2. STUDY OF “TWO BOXES” ANALYSIS MODELS OF COUPLED THERMAL FLOW IN HEAVY OIL RESERVOIRS AND THEIR APPLICATION. , 2012, 31(5): 1007-1015.

链接本文:

http://www.rockmech.org/CN/Y2012/V31/I5/1007

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