摘要
针对水平井筒中油水两相变质量流动,从理论和室内实验两个方面对分散流型下压降进行了研究,着重考虑壁面流体的流入对壁面摩阻系数的影响与不同流型间的转换。根据质量守恒、动量守恒方程,建立了水平井油水两相分散流型下压降预测模型。采用水、白油为实验介质,测量了水平管不同注入比、不同含水率下油水两相流压降值。实验结果分析表明,当含水率为40%时,油水发生反相,管道中流动压降最大,这和Brinkman/Roscoe混合黏度公式计算出的反相点一致。同时,压降模型预测结果与实验结果相比较平均相对误差为13.6%。
The Oil-water dispersed variable mass flow in the horizontal well was studied theoretically and experimentally. The key is Moody Friction coefficient and oil-water flow pattern. On the base of principle of quality conservation and momentum conservation, a mathematical model of pressure drop was developed considering influx. An experiment for measuring oil-water two phase flow was conducted in a horizontal pipe loop by using oil and water as working fluids. The pressure drop was obtained under different water cut and injection ratio. The experimental results show that the critical water fraction for phase inversion is 40% at which point the pressure drop in the pipe is largest. It is in agreement with the model proposed by Brinkman and Roscoe. The mean relative deviation is 13.6% between the pressure drop calculations and the experimental values.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
2011年第3期284-288,共5页
Chinese Journal of Hydrodynamics
基金
国家重大专项课题"复杂结构井优化设计与控制关键技术"(2009ZX05009-005)
关键词
水平井
油水两相
变质量流动
反相
压降
horizontal well
oil-water flow
varymass flow
inversion point
pressure drop
