考虑不同边界条件下的水平井产能公式  

Horizontal well productivity formula considering different boundary conditions

作　　者：邓森[1,2] 罗能强 杨思远 DENG Sen;LUO Nengqiang;YANG Siyuan(Daqing Oilfield Co.Exploration and Development Research Institute,Daqing 163712,China;Heilongjiang Provincial Key Laboratory of Reservoir Physics&Fluid Mechanics in Porous Medium,Daqing 163712,China;Daqing Oilfield Construction and Design Institute,Daqing 163712,China)

机构地区：[1]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712 [2]黑龙江省油层物理与渗流力学重点实验室,黑龙江大庆163712 [3]大庆油田建设设计研究院,黑龙江大庆163712

出　　处：《复杂油气藏》2020年第2期60-65,共6页Complex Hydrocarbon Reservoirs

基　　金：国家科技重大专项“精细注采结构优化调整技术”(2016ZX05010002-001)。

摘　　要：地层边界条件不同,建立的水平井产能公式也不同。传统的气顶底水油藏、气顶油藏和底水油藏水平井产能公式都是在地层无限大情况下建立,并未考虑地层两边是封闭边界情况下的产能,因此,用镜像反映法将水平井映射成无限大平面内的无穷井排,再用势的叠加原理得到平面上任意一点的势,利用马斯凯特公式化简势函数,通过建立供给边界和井壁上的势,得到考虑左右封闭边界条件下水平井的产能公式,对水平井的开发有一定的指导意义。For different formation boundary conditions,various horizontal well productivity formulas are established.The traditional horizontal well productivity formulas for gas top and bottom water reservoir,gas top reservoir,and bottom water reservoir were established in the case of infinite formation without considering the closed boundaries on both sides of the stratum.Because of this,the mirror reflection method is used to map horizontal wells into infinite well rows in an infinite plane,and the potential of any point on the plane is obtained by using the principle of potential superposition.And then the potential function is simplified by using Maskate Formula.Finally,by establishing the potential on the supply boundary and the wellbore,it is obtained a horizontal well productivity formula considering both sides closed boundary condition,which has certain guiding significance for the development of horizontal wells.

关 键 词：气顶底水油藏 气顶油藏 底水油藏 水平井产能 

分 类 号：TE349[石油与天然气工程—油气田开发工程]