基于稠油火驱机理改进的数值模拟方程

doi:10.3969/j.issn.1006-6535.2021.05.014

特种油气藏 ›› 2021, Vol. 28 ›› Issue (5): 100-106.DOI: 10.3969/j.issn.1006-6535.2021.05.014

基于稠油火驱机理改进的数值模拟方程

王泰超^1,2, 朱国金^1,2, 谭先红¹, 王凯¹, 谢昊君¹

1.海洋石油高效开发国家重点实验室,北京 100028;
2.中海油研究总院有限责任公司,北京 100028

收稿日期:2020-08-10 修回日期:2021-05-14 出版日期:2021-10-15 发布日期:2022-02-17
通讯作者: 朱国金(1963—),男,教授级高级工程师,1985年毕业于华东石油学院采油工程专业,1988年毕业于中国石油勘探开发研究院油气田开发工程专业,获硕士学位,现从事油田开发前期研究与动态分析工作。
作者简介:王泰超(1989—),男,工程师,2012年毕业于中国石油大学(北京)石油工程专业,2015年毕业于该校油气田开发工程专业,获硕士学位,现从事稠油热采科研与生产工作。
基金资助:
国家科技重大专项“海上稠油热采技术”(2016ZX05025-004)

Improved Numerical Simulation Equation Based on Heavy-oil Fire Flooding Mechanism

Wang Taichao^1,2, Zhu Guojin^1,2, Tan Xianhong¹, Wang Kai¹, Xie Haojun¹

1. State Key Laboratory of Offshore Oil Exploitation, Beijing 100028, China;
2. Beijing Research Center, CNOOC (China) Co., Ltd., Beijing 100028, China

Received:2020-08-10 Revised:2021-05-14 Online:2021-10-15 Published:2022-02-17

摘要/Abstract

摘要： 为解决火驱数值模拟组分间转换关系复杂、收敛性差、结果精度低等问题,从火驱燃料沉积角度出发,将反应方程改进为稠油裂解和焦炭燃烧反应方程,并建立具有重复性和准确性的燃料沉积量室内实验方法,求取稠油裂解沉积量,拟合得到改进的模拟方程。结果表明:改进模型更加合理,其粗化后与室内实验结果、加密后的经典方程模型温度场、燃烧前缘分布等模拟结果基本一致,可以真实地描述高温氧化过程,且运算时间大幅度降低。该研究成果对火驱方案编制具有一定指导意义。

关键词: 火驱, 动力学方程, 数值模拟, 燃料沉积量, 氧化前缘

Abstract: In order to solve the problems of complex conversion relationship between components, poor convergence and low accuracy of results during the numerical simulation of the in-situ combustion, the reaction equation was improved to heavy oil cracking and coke combustion from the perspective of fuel deposit of in-situ combustion, and a repetitive and accurate indoor experimental method for fuel deposit rate was established to calculate the deposit rate in heavy oil cracking and obtain an improved simulation equation by fitting. The results showed that the improved model was more reasonable, and the simulation results of the roughened model were basically consistent with these of indoor experimental results, as well as the temperature field, combustion front distribution and other simulation results of the encrypted classical equation model, and with this model, the high-temperature oxidation process could be described factually and the calculation time was greatly reduced. There is much for reference of the study results to the preparation of in-situ combustion scheme.

Key words: fire flooding, kinetic equation, numerical simulation, fuel deposit rate, oxidation front

中图分类号:

TE345

王泰超, 朱国金, 谭先红, 王凯, 谢昊君. 基于稠油火驱机理改进的数值模拟方程[J]. 特种油气藏, 2021, 28(5): 100-106.

Wang Taichao, Zhu Guojin, Tan Xianhong, Wang Kai, Xie Haojun. Improved Numerical Simulation Equation Based on Heavy-oil Fire Flooding Mechanism[J]. Special Oil & Gas Reservoirs, 2021, 28(5): 100-106.

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基于稠油火驱机理改进的数值模拟方程

Improved Numerical Simulation Equation Based on Heavy-oil Fire Flooding Mechanism

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