一种新的水平井产量计算公式  

A NEW FORMULA TO CALCULATE THE DELIVERABILITY OF HORIZONTAL WELL

作　　者：陈小凡[1] 乐平[1] 苏国丰[2] 杨建[1] 

机构地区：[1]"油气藏地质及开发工程"国家重点实验室.西南石油大学,四川成都610500 [2]中国石化中原油田普光分公司采气厂,四川达州636150

出　　处：《西南石油大学学报（自然科学版）》2010年第1期93-96,共4页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：国家重大专项"剩余油分布综合预测与层系井网重组技术"(2008ZX05010-003)

摘　　要：解析法是水平井产量研究的重要方法,是从数学模型出发,通过相应的假设条件,简化方程的初始、边界条件,利用保角变换、镜像映射、势的叠加原理及等值渗流阻力法等得到水平井的产量公式并求出解析解。在调研水平井计算公式发展历史和研究现状的基础上,通过对水平井泄油体的简化、分解和流场的三维处理,遵循水平井远井区域水平平面渗流和近井区域垂面径向流的基本渗流规律,运用等值渗流阻力法推导出一种新的水平井产量公式,通过与常用水平井产量公式在经典算例下的对比研究表明,该公式是合理可靠的。Analytic method is an important approach to research the deliverability of the horizontal well.In analytical method based on the mathematical model,through the appropriate assumption to simplify the initial equation,the boundary conditions,the conformal mapping,image mapping,the principle of potential superposition and the equivalent flow resistance method are used to obtain the formula and it's analytical solution.Based on the sufficient research on the development history and current situation of formula for calculating the horizontal well deliverability,through the simplifying and dividing the drainage area shape,processing the drainage region in three-dimensional,following the rule of horizontal well flow,that plane flow in the far region and vertical radial flow near wellbore region,using the equivalent flow resistance method,a new formula for calculating horizontal well deliverability is obtained.The formula is simple and easy to understand,and compared with the classic formula,it is indicated that the new formula is reasonable and reliable.

关 键 词：水平井 产量公式 解析法 三维流场 对比分析 

分 类 号：TE312[石油与天然气工程—油气田开发工程]