海上稠油油田热水复合增效适应性初步探索  

Preliminary exploration on adaptability of hot water flooding combined flooding in offshore heavy oilfields

作　　者：袁玉凤 戎凯旋 李田靓 魏鹏 张颖[1,2] 高杰 赵心茹[1,2] YUAN Yufeng;RONG Kaixuan;LI Tianliang;WEI Peng;ZHANG Ying;GAO Jie;ZHAO Xinru(Production Optimization R&D Institute,China Oilfield Services Limited,Tianjin 300450,China;Laboratory of Testing and Analysis of State Key Laboratory of Ocean Efficient Development,Tianjin 300450,China)

机构地区：[1]中海油田服务股份有限公司油田生产研究院,天津300450 [2]海洋高效开发国家重点实验室试验与分析室,天津300450

出　　处：《石油化工应用》2023年第9期61-66,共6页Petrochemical Industry Application

摘　　要：渤海油田稠油资源丰富,黏度低于350 mPa·s的普通稠油油藏,通常采用常规水驱开发,但由于油水黏度差异明显,流度差异大,水驱过程中易产生指进现象,导致含水率上升快,严重影响开发效果;单纯的热水携带热量有限,热能利用率低,在热水的基础上复合化学剂、辅助气体,进一步提高驱油效率,扩大波及体积,有效改善水驱开发效果,因此,开展热水复合驱适应性研究,对海上稠油油田的高效开发具有重要的意义,本文通过室内实验的手段,开展热水复合驱增产机理研究,在此基础上,开展油藏参数、注采参数等适应性分析,初步提出适用热水复合驱开发的油藏参数界限,同时开展注采参数优化,为后续海上稠油油田的高效开发提供有利借鉴。The Bohai oilfield is rich in heavy oil resources,and the conventional heavy oil reservoirs with viscosity lower than 350 mPa·s are usually developed by conventional water flooding.However,due to the obvious difference in oil-water viscosity and fluidity,it is easy to produce pointing phenomenon in the process of water flooding,which leads to the rapid rise of water cut and seriously affects the development effect.Simple hot water carries limited heat and has a low utilization rate of heat energy.Combining chemical agents and auxiliary gases on the basis of hot water can further improve the oil displacement efficiency,expand the sweep volume and effectively improve the development effect of water flooding.Therefore,it is of great significance to carry out the adaptability research of hot water composite flooding for the efficient development of offshore heavy oil reservoirs.The stimulation mechanism of hot water composite flooding was studied.On this basis,the adaptability analysis of reservoir parameters and injection-production parameters was carried out,and the limit of reservoir parameters applicable to hot water composite flooding development was preliminarily proposed.Meanwhile,the injection-production parameters were optimized,which provided a favorable reference for the efficient development of the subsequent offshore heavy oil reservoir.

关 键 词：稠油油田 热水复合驱 室内实验 增效机理 适应性分析 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]