海上注水井温度剖面预测模型研究  

Study on the Temperature Profile Prediction Model of Offshore Water Injection Well

作　　者：张玺亮 左凯 李昂 刘传刚 吴杰 杨铁梅 Zhang Xiliang;Zuo Kai;Li Ang;Liu Chuangang;Wu Jie;Yang Tiemei(Engineering Technology Branch of CNOOC Energy Development Co.,Ltd.,Tianjin,300452)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300452

出　　处：《当代化工研究》2024年第17期59-61,共3页Modern Chemical Research

摘　　要：由于目前对海上注水井温度剖面影响规律认识不足,使基于分布式光纤温度监测(DTS)定量诊断海上注水井吸水剖面仍十分困难。本文建立了考虑微量热效应和储层非等温渗流的海上注水井温度剖面预测模型,模拟分析了注水量变化对注水井温度剖面的影响规律,并通过正交试验分析评价出不同因素对注水井温度剖面的影响程度,依次为:注水温度>注水时间>注水速度>井筒直径>地层导热系数>井眼轨迹>注入层渗透率(T_(inj)>t>Q_(inj)>D>K_(t)>θ>k),明确了影响注水井温度剖面的主控因素为注水温度、注水时间和注水速度。本文研究成果为海上注水井吸水剖面定量解释及注水优化奠定了模型基础。Due to the lack of knowledge on the influence law of the temperature profile of offshore water injection wells,it is still highly chal-lenging to quantitatively diagnose the water injection profile of offshore water injection wells using distributed optical fiber temperature sensing(DTS).In this paper,a temperature profile prediction model for offshore water injection wells has been developed with taking into account the micro thermal effect and non-isothermal reservoir seepage.The influence of water injection rate on the temperature profile of water injection wells is simulated and analyzed.Through orthogonal experiment analysis,the degree of influence of different factors on the temperature profile of injection wells has been addressed,namely water injection time>water injection rate>wellbore diameter>formation thermal conductivity>wellbore trajectory>formation permeability(T_(inj)>t>Q_(inj)>D>K_(t)>θ>k),water injection temperature,water injection time,and water injection rate are the dominant parameters impacting the temperature profile of water injection wells.The results of this paper provide a model foundation for the quantitative evaluation of wa-ter injection profile and water injection optimization for the offshore water injection wells.

关 键 词：温度剖面预测模型 海上注水井 温度剖面影响规律 正交试验 DTS 

分 类 号：TE353[石油与天然气工程—油气田开发工程]