超临界二氧化碳BLEVE机理数值模拟  

Numerical Simulation of BLEVE Mechanism of Supercritical Carbon Dioxide

作　　者：张德平 赵耀[2] 史晓慧[2] 刘振翼[2] 

机构地区：[1]中国石油吉林油田采油工艺研究院,松原138000 [2]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《科技导报》2014年第25期46-50,共5页Science & Technology Review

基　　金：国家科技重大专项(2011ZX05054)

摘　　要：碳捕集与贮存及提高油田采收率(CCS-EOR)技术是节能减排的有效手段。本文以超临界CO2为研究对象,采用数值模拟的方法(使用FLUENT软件及可压缩形式的N-S方程,采用SIMPLEC求解有限差分方程,选用标准k-ε湍流模型,多相流模型选用FLUENT自带的VOF(volume of fluid)模型),对其在注入油管内发生沸腾液体扩展蒸气云爆炸(BLEVE)事故的初期过程进行模拟计算,建立并验证合理可靠的数学模型,分析容器内流场演化过程及压力、温度的变化过程,揭示超临界CO2BLEVE过程的发生机理与变化规律。Greenhouse effect and energy shortage are becoming increasingly serious problems with rapid development of the oilrefining industry. Oil carbon capture and storage and the enhanced oil recovery （CCS-EOR）is developed to alleviate the shortage. Asimulation was carried outusing CFD method in this paper. The FLUENT software was used, and the SIMPLEC method and standard turbulent model were adopted to solve compressible N-S equations. VOF （volume of fluid） model was chosen as the multiphase model. The numerical simulation was based on the physical model and suitable mathematical model. A model was established to illustrate the mechanism and rule of supercritical CO2 BLEVE, providing technical support to accident prevention and reference for future research.

关 键 词：超临界二氧化碳 沸腾液体扩展蒸气云爆炸 爆炸机理 数值模拟 

分 类 号：TE357[石油与天然气工程—油气田开发工程] X511[环境科学与工程—环境工程]