利用地热能提高稠油油藏采收率的探索与实践  

Exploration and practice of using geothermal energy to improve recovery of heavy oil reservoir

作　　者：陈秋月 王中华 王婷 路强 马占旗 CHEN Qiuyue;WANG Zhonghua;WANG Ting;LU Qiang;MA Zhanqi(CNOOC Energy Development Co.,Ltd.,Engineering Technology Branch,Tianjin 300452,China)

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：《石油化工应用》2022年第6期43-47,共5页Petrochemical Industry Application

摘　　要：为有效利用油区地热资源,分析了P油田利用地热能驱油的可行性,探索采用“自源闭式能量补充”方式将深层地热流体注入浅层稠油油藏,提高稠油油藏采收率。驱油效率实验表明,随温度的升高,最终驱油效率提高了14.72%;油藏数值模拟研究预测地热驱采收率比常规水驱采收率提高6.62%。现场试验表明,采用地热驱油技术,在降低原油黏度、提高采收率的同时,节约了平台注水设备投资,以经济、环保的方式开采稠油油藏,为类似稠油油藏开发提供了借鉴。In order to effectively utilize geothermal resources in oil area,the feasibility of using geothermal energy to replace crude oil was analyzed in P oilfield.Deep geothermal fluid is injected into shallow heavy oil reservoir by means of self-source closed energy supplement to improve recovery of heavy oil reservoir.The experiment showed that the final oil displacement efficiency was increased by 14.72% with the increase of temperature.Numerical simulation of the reservoir predicts that the recovery of geothermal flooding is 6.62% higher than that of conventional water flooding.Field test showed that geothermal flooding technology can reduce crude oil viscosity and improve oil recovery,while saving the investment of platform water injection equipment.In this way,heavy oil reservoirs can be exploited in an economic and environmental way,which provides a reference for similar heavy oil reservoirs.

关 键 词：稠油油藏 地热能 驱油实验 采收率 

分 类 号：TE357.45[石油与天然气工程—油气田开发工程]