长水平井的产能公式  

A Production Rate Equation for Long Horizontal Wells

作　　者：李传亮[1] 林兴[1] 朱苏阳[1] 

机构地区：[1]西南石油大学石油与天然气工程学院,成都610599

出　　处：《新疆石油地质》2014年第3期361-364,共4页Xinjiang Petroleum Geology

基　　金：国家科技重大专项(2011ZX05027-003-01)

摘　　要：短水平井是指水平段长度远小于泄油区域尺度的水平井,若水平段长度与泄油区域尺度基本相同,则为长水平井。目前的水平井产能公式都是针对短水平井而提出的,不适用于长水平井。采用等效渗流阻力法,推导了长水平井的产能计算公式。不能用长水平井的产能公式计算短水平井的产量,否则,会高估油井的产量。长水平井产能公式的计算结果为水平井公式计算结果的下限值。Short horizontal wells are those which lengths are much shorter than the size of drainage area. The conventional production rate equations are all established for short horizontal wells, which can not be used to calculate the production rates of long horizontal wells. So called long horizontal wells are those which lengths are almost the same with the size of drainage area. Based on the equivalent flow resistance theory, a production rate equation was derived in this paper, which can be used for production rate calculation of long horizontal wells, but can not be used for that of short horizontal wells, otherwise, the production rate may be overestimated. The production rate calculated by the long horizontal well equation is the lower limit of production rate calculated by horizontal well equations.

关 键 词：油藏 直井 水平井 产能公式 

分 类 号：TE313.8[石油与天然气工程—油气田开发工程]