摘要
通过对EXP-RK,SRK,PR,PT状态方程进行分析对比,给出了EXP-RK和PR状态方程相结合的PR-EXP方法,该方法的计算精度要优于单独使用PR或EXP-RK方程的。根据传热学及垂直管流理论,与PR-EXP方法相结合,建立考虑相态变化的CO2注入井井筒温度压力耦合计算模型,应用该模型对吉林油田H75-29-7井井筒温度、压力以及流体相态进行计算。计算结果与实测结果吻合较好,证明了所建模型的准确性。
Based on the analysis and comparison for four classic equations of state of EXP-RK,SRK,PR,PT,a combinational method of PR-EXP was given. The accuracy of PR-EXP method is higher than that of PR and EXP-RK using in single. Based on the theories of heat transfer and vertical conduit flow and associated with the method of PR-EXP, a pressure-temperature coupling calculation model was developed. The coupling model was applied to well H75-29-7 of Jilin Oilfield, and the computing data agree well with the field testing data, which indicates the accuracy of the new method.
出处
《中国石油大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第1期73-77,共5页
Journal of China University of Petroleum(Edition of Natural Science)
基金
中国石油科技创新基金项目(2008D-5006-02-07)
中国石油天然气股份有限公司科学技术重大专项(07-02Z-01)
关键词
注气
二氧化碳
状态方程
相态
温度场
压力场
gas injection
carbon dioxide
equation of state
phase behavior
temperature field
pressure field
