关键词: 水平井, 压力, 流量, 优化, 有杆泵, 模型

Abstract: Combined with production data,production prediction curve and formula of partially perforated horizontal well were obtained.According to the laws of energy conservation and multiphase fluid flow,calculation method of outflow curve for sucker rod pump in horizontal well and calculation models of pressure drop in horizontal section were deduced,and pressure drop was calculated separately with an example in every part of production system of horizontal well.An example show that the deduced formula with higher calculating precision are worth to be popularized and applied.It is pointed out that if pressure drop in the horizontal section exceed 0.1 MPa,the nodal system analysis is used to horizontal well must be considered.

Key words: horizontal well, pressure, flow rate, optimization, rod pump, model