水平井产能参数影响程度排序方法  

SEQUENCING METHODS OF INFLUENCE DEGREE OF HORIZONTAL WELLS' PRODUCTIVITY PARAMETERS

作　　者：梁涛[1] 金立平 

机构地区：[1]中国石油勘探开发研究院 [2]中海石油深圳分公司

出　　处：《钻采工艺》2011年第2期49-52,115,共4页Drilling & Production Technology

基　　金：国家科技重大专项"大型油气田及煤层气开发"子课题(编号:2008ZX05028-003)资助

摘　　要：人们在做水平井产能参数敏感性分析时,只是分别分析了每种参数对产能的影响,很少比较各参数对水平井产能的影响程度。这么做有两个问题:第一、油田现场往往不能获取到完全的参数信息,所以计算结果会有一定的误差;第二、在部署水平井时很难考虑到所有参数。那么在信息不完全的情况下,有必要比较各参数之间影响程度的强弱,将各参数对水平井产能的影响程度排序,优选出主要参数。采用灰色关联分析方法对水平井产能参数的影响程度进行了分析计算,并运用信息量分析理论对此进行检验,对两种方法的基本原理和步骤做了介绍。两次分析结果认为,油藏有效渗透率、水平井段长度、生产压差、地下原油黏度是影响水平井产能的主要参数,灰色关联方法与信息量分析理论是计算和检验水平井产能参数影响程度的有效方法。Analyzing horizontal wells' productivity parameter's sensitivity,people always analyze every parameter's influence on productivity respectively,but rarely compare influence degree between parameters.Thus,it can bring two problems.First,calculation results will have some errors,since people always can not obtain very precise and integrated data.Second,when a horizontal well needs to be deployed,it's very hard to concern all the parameters.Therefore,it is necessary to compare influence degree between all parameters,and sequence the influence degree to optimize main parameters.Using Gray Correlative Method made a sequence of parameters' influence degree,and checked it by Information Amount Theory.Their basic principles and procedures were introduced.From results of two methods,the main parameters to influence productivity are,effective permeability,horizontal section length,producing pressure drop and oil viscosity.Gray Correlative Method and Information Amount Theory were suitable ways to calculate and check the influence degree of horizontal wells' productivity parameters.

关 键 词：水平井 产能 参数 影响程度 灰色关联方法 信息量分析理论 

分 类 号：TE328[石油与天然气工程—油气田开发工程]