底水驱油藏水平井三维稳态解产能公式  

A New Productivity Formula for 3D Steady State Solution of a Horizontal Well in a Reservoir with Bottom Water Drive

作　　者：刘想平[1] 

机构地区：[1]江汉石油学院石油工程系

出　　处：《江汉石油学院学报》1998年第1期54-58,共5页Journal of Jianghan Petroleum Institute

摘　　要：在以往研究有关产能计算公式的基础上，将水平井视为三维线，推导出无界地层水平井三维稳态渗流速度势分布。根据镜像反映和势叠加原理，又导出了底水驱油藏水平井三维稳态势分布，在此基础上得到了三维稳态产能新公式。公式中考虑了水平井在油藏中的位置及油层各向异性等对水平井产能的影响。引入了流动阻力修正系数，它使得产能计算公式更简单、实用。实例计算表明，新公式比二维导出的公式更严密，计算结果更加符合实际。A 3D steady state velocity potential distribution in a horizontal well of unbounded reservoir is derived The imaging and superposition principles are applied to derive 3D steady state potential distribution in a horizontal well from a bottom water drive reservoir A new formula for calculating horizontal well productivity is developed The effects of the horizontal well position relative to water oil contact and permeability anisotropy,etc on productivity are considered A modified factor of flow resistance is introduced into the formula It makes the formula more simple and practical An example of calculation shows that the new formula derived from 3D models is more strict than those from 2D models and its results agree well with practical data

关 键 词：油气藏动态 水平井 底水驱 生产能力 

分 类 号：TE341[石油与天然气工程—油气田开发工程]