水平井油水分层流速度场数值模拟  

Numerical simulation of velocity fields of oil-water stratified flows in horizontal wells

作　　者：张宏兵[1] 陈露露[1] 尚作萍[1] 谢荣华[2] 刘兴斌[2] 

机构地区：[1]河海大学土木工程学院,江苏南京210098 [2]中国石油大庆油田有限责任公司,黑龙江大庆163458

出　　处：《河海大学学报（自然科学版）》2009年第4期415-418,共4页Journal of Hohai University(Natural Sciences)

基　　金：国家高技术研究发展计划(863计划)(2007AA06Z231)

摘　　要：依据N-S方程和相应的界面耦合条件,构建了牛顿流体-牛顿流体两相流的2层和3层分离模型;用有限差分法和松弛迭代法离散和求解各种模型的方程,并模拟了水平井油水分层流流速场.模拟结果表明:水平井中由于压差作用,黏度相对较小的流体流速比较快,不同分界面高度流量和各相持率差别比较大;3层与2层分离模型模拟结果,除了分界面局部特征有些差异外,整个速度场绝对数值也有较大的不同.Two-layer and three-layer segregated models were established for two-phase Newtonian fluid-Newtonian fluid flows based on the N-S equations and the coupling interface conditions. The finite-difference and successive overrelaxation methods were employed to disperse and solve the equations of the two models. The velocity fields of two-phase oil-water stratified flows in horizontal wells were simulated. The simulated results show that the velocity of the fliud with smaller viscosity is quicker because of the pressure gradient in the horizontal wells, and the differences of the flows and the phase holdups are larger at different heights along the interface. In regard to the simulated results of the two-layer and three-layer segregated models, there are some differences between the local characteristics of the interface, and the absolute values of the whole velocity fields are different.

关 键 词：水平井 油水分层流 分离模型 速度场 数值模拟 

分 类 号：O359[理学—流体力学]