基于灰色关联分析的油井产量影响因素评价研究  

Evaluation of factors affecting oil well production based on grey relational analysis

作　　者：陈楠 王海更 郭培培 李亦白 张博文 CHEN Nan;WANG Haigeng;GUO Peipei;LI Yibai;ZHANG Bowen(Pengbo Operating Company of CNOOC(China)Co.,Ltd.,Tianjin 300459,China)

机构地区：[1]中海石油(中国)有限公司蓬勃作业公司,天津300459

出　　处：《石油化工应用》2023年第5期87-91,113,共6页Petrochemical Industry Application

摘　　要：海上N砂岩稠油油田投产后于2011年达到产量高峰,随后由于单井产量递减,油田产量开始衰减。单井产量的大幅下降是影响油田整体产量的主要原因。为此采用灰色关联分析法对油井产量下降影响因素进行分析,弄清影响N油田油井产量下降原因。研究结果表明:不同流体和储层物性的井区,其单井产量的影响因素也各不相同。对于稠油油藏,影响因素主要为原油黏度、渗透率、射孔厚度和层间干扰情况,即油井产量的主要因素可总结为地层能量、储层连通性和射孔厚度。After the offshore N sandstone heavy oilfield was put into production,it reached its production peak in 2011,and then due to the decline in single well production,the oilfield production began to decline.The sharp drop in the oil production of a single well is the main reason that affects the overall production of the oilfield.For this reason,the gray correlation analysis method is used to analyze the factors affecting the decline of oil well production,and to find out the reasons for the decline of oil well production in the N oilfield.The research results show that the factors affecting the production of a single well are different in the well area with different fluid and reservoir physical properties.For heavy oil reservoirs,the main influencing factors are crude oil viscosity,permeability,perforation thickness and interlayer interference.The main factors affecting the production of oil wells in the N oilfield are formation energy,reservoir connectivity and perforation thickness.

关 键 词：灰色关联度 油井产量 影响因素 评价 

分 类 号：TE357.14[石油与天然气工程—油气田开发工程]