水平井筒内与渗流耦合的流动压降计算模型  

A MODEL TO CALCULATE PRESSURE DROPS OF HORIZONTAL WELLBORE VARIABLE MASS FLOW COUPLED WITH FLOW IN A RESERVOIR

作　　者：刘想平[1] 张兆顺[1] 刘翔鹗[2] 郭尚平[2] 

机构地区：[1]清华大学,北京100084 [2]中国石油天然气集团公司石油勘探开发科学研究院,北京100083

出　　处：《西南石油学院学报》2000年第2期36-39,共4页Journal of Southwest Petroleum Institute

摘　　要：水平井筒内压降对水平井生产动态有较大影响。分析了水平井生产时与渗流耦合的水平井筒内单相变质量流的特性后 ,从水平井筒内流动出发 ,根据质量守恒原理和动量定律导出了裸眼完井和射孔完井的水平井筒内压降计算基本公式 ,并根据势迭加原理导出了油藏内渗流的压力方程。在此基础上 ,建立了石油工程上实用的水平井筒内压降计算新模型 。Pressure drops in horizontal wellbore influence production performance greatly. This paper analysis the property of horizontal wellbore single-phase variable mass flow coupled with flow in reservoir when a horizontal well is producing. The basic equation are derived to calculate the pressure drops of the flow within an open-hole and a perforated completion horizontals well bore based on the principle of conservation of mass and momentum. And the equation of flow in the reservoir is also derived using potential superposition principles. Based on this, a new model to calculate pressure drops in horizontal wellbore is developed. The results of the practical calculations are shown.

关 键 词：水平井筒 数学模型 渗流耦合 流动压力降 

分 类 号：TE35[石油与天然气工程—油气田开发工程] TE331