水平井筒压降重要性的判别新方法研究  

A New Method Research on Identifying the Importance of Horizontal Wellbore Pressure Drop

作　　者：孙玉学[1] 陈向明[1] 苏航 解家鑫 史海民[3] 赵景原[1] 曹晓春[1] 闻守斌[1] 

机构地区：[1]东北石油大学石油工程学院,黑龙江大庆163318 [2]大庆油田第六采油厂,黑龙江大庆163318 [3]吉林油田公司钻井工艺研究院,吉林松原138000

出　　处：《数学的实践与认识》2016年第2期141-146,共6页Mathematics in Practice and Theory

摘　　要：以前许多关于水平井的研究,都没有涉及到井筒压降,通过建立数学模型,提出了简单的解析式,来确定井筒压降对水平井流入的相对影响.用两个无量纲数的简单作用来说明水平井筒中的压降的相对重要性,一个是井筒中流动的雷诺数,另一个是被称为水平井数的新无量纲数.用这一相对关系,优化设计井筒的直径和长度来保证井筒压降不影响产能.Wellbore pressure drop are not considered before much of the research on horizon- tal well.Through the establishment of mathematical model, this paper puts forward a simple analytic expression to determine the relative influence of wellbore pressure drop on horizontal well inflow. Two simple function of dimensionless number is used to illustrate the relative importance of horizontal wellbore pressure drop. One is Reynolds number in the wellbore flow, another is a new dimensionless number referred to as the number of horizontal well.With the relative relationshipt we optimize the design of wellbore diameter and length to ensure wellbore pressure drop does not affect welt production.

关 键 词：井筒压降 水平井 雷诺数 水平井数 

分 类 号：TE31[石油与天然气工程—油气田开发工程]