多级混合单元模型模拟细管实验测算CO_2驱最小混相压力  

Calculation of minimum miscible pressure for CO_2 flooding by multistage mixture unit model in slim tube experiment

作　　者：李俊刚[1] 贺怀东[2] Li Jungang;He Huaidong(Northeast Petroleum University,Daqing 163318,China)

机构地区：[1]东北石油大学提高油气采收率教育部重点实验室,黑龙江大庆163318 [2]大庆油田有限责任公司第三采油厂,黑龙江大庆163152

出　　处：《石化技术》2017年第8期54-56,共3页Petrochemical Industry Technology

摘　　要：多级混合单元模型把细管实验用的填充细管离散为一系列具有相同体积的单元,连续注入的气体离散为一系列具有相同体积的批次,对每个单元进行热动力p/T闪蒸计算,求解出各关键结线的组成,计算关键结线长度,由关键结线长度为零时对应压力即为最小混相压力。The filling tubes which are used in the slim tube experiment are divided into a series of units in same volume bymultistage mixture unit model.The gas injected continuously is divided into a series of the same volume batches.The flash p/Tcalculation for the thermo-motive is used in every unit.The composition of the key tie line is solved,the length of the key tie line iscalculated,and the pressure at the time when length of the key tie line is zero is the minimum miscible pressure.

关 键 词：多级混合单元模型 最小混相压力 预测方法 

分 类 号：TE357.7[石油与天然气工程—油气田开发工程]