摘要
建立了考虑油藏流入影响的水平井筒水平段流动模型 ,在给定边界条件下对模型进行了数值求解 ,得到了水平井筒沿程压力分布和流入剖面。推导了均匀流入时压力剖面、单位长度生产指数剖面以及沿水平段的孔眼分布方程 ,并用一个实例计算了在给定井产量和水平段长度时所需要的生产压差。计算结果表明 ,由于井筒中压降的存在 。
A model of fluid flow in a horizontal wellbore is presented with consideration of the effect of reservoir inflow. The model is resolved numerically under the given boundary conditions. Pressure distribution and influx along horizontal wellbore are obtained. The equations of pressure profile and specific productivity index(PI) profile and perforation distributation along the horizontal section with a constant inflow profile are derived. Taking a well with given oil production and horizontal section length as an example, the pressure drawdown is calculated with the equations. The oil production can not raise continuously with the length increase of horizontal wellbore section because of common occurrence of pressure drop.
出处
《石油大学学报（自然科学版）》
CSCD
北大核心
2001年第6期55-57,共3页
Journal of the University of Petroleum,China(Edition of Natural Science)
基金
石油大学博士科研基金资助课题
关键词
油气井
水平井
压力降
生产指数
流入剖面
生产压差
孔眼密度
优化
horizontal well
pressure drop
productivity index
inflow profile
drawdown
perforation density
optimization
