基于POT模型的油田地面生产油气损耗高值点环节自动识别方法  

An automatic method based on a POT model for the identification of high-value points of oil and gas loss in the process of oilfield surface production

作　　者：袁子上 万勇[1] 展梓豪 范路[2] 戴永寿[1] YUAN Zishang;WAN Yong;ZHAN Zihao;FAN Lu;DAI Yongshou(College of Ocean and Space Informatics,China University of Petroleum,Qingdao 266580,China;Technical Inspection Center,SINOPEC Shengli Oilfield Company,Dongying 257000,China)

机构地区：[1]中国石油大学(华东)海洋与空间信息学院,山东青岛266580 [2]胜利油田技术检测中心,山东东营257000

出　　处：《山东科学》2025年第2期100-108,共9页Shandong Science

基　　金：国家自然科学基金项目(42274159)。

摘　　要：在“双碳”目标下石油化工等高碳排放企业进行低碳转型,降低碳排放已成为重要发展趋势,其中油气损耗在石化行业总能耗中占比较大。针对目前方法无法依据油气损耗数据变化规律自动识别高值点环节的问题,提出了一种基于过阈值模型的油气损耗高值点环节自动识别方法。对胜利油田某采油区的35个环节进行油气损耗核算。依据核算数据尖峰厚尾的分布特征,利用过阈值模型分割油气损耗数据中的尾部数据并拟合其概率分布函数,依据3σ原则识别概率分布函数中对应的油气损耗高值点环节。结果确定高值点阈值为869.34 m 3/d,高值点环节识别准确率为0.986,相较于其他传统方法,该方法识别结果更准确,有利于损耗治理工作的高效展开。∶Under the“dual carbon”goals,high carbon emitting enterprises in industries,such as petrochemicals,are undergoing a low-carbon transformation and are reducing their carbon emissions,which have grown to become an important development trend.Oil and gas losses account for a large proportion of the total energy consumption in the petrochemical industry.In this study,focusing on the inability to automatically identify the high-value points of loss because of the change in the law of oil and gas loss data,a method for automatically identifying the high-value points of oil and gas loss based on the peak over threshold(POT)model is proposed.First,accounting of oil and gas losses was conducted in 35 links of an oil producing reservoir in Shengli Oilfield.Second,according to the leptokurtic distribution characteristics of the accounting data,the oil and gas loss tail data were segmented using the POT model and fitted with its probability distribution function(PDF).The corresponding high-value points of oil and gas losses in the PDF were identified according to the 3σprinciple.Finally,the results determine the threshold of high-value points to be 869.34 m 3/d,and the identification accuracy of high-value points to be 0.986,accuracy greater than other traditional methods.Therefore,the proposed method is conducive to the efficient development of loss control methods.

关 键 词：油田 油气损耗 POT模型 高值点识别 

分 类 号：TE85[石油与天然气工程—油气储运工程]