岩石扩容技术在海上油田增产增注的研究及应用  

Research and application of rock expansion technology to increase production and injection of offshore oilfield

作　　者：张斌斌 马宇奔 莘怡成 袁征[1] 郭宏峰[1] 夏金娜 谭家文 ZHANG Binbin;MA Yuben;XIN Yicheng;YUAN Zheng;GUO Hongfeng;XIA Jinna;TAN Jiawen(Oilfield Production Department,China Oilfield Services Limited,Tianjin 300459,China)

机构地区：[1]中海油田服务股份有限公司油田生产事业部,天津300459

出　　处：《石油化工应用》2023年第11期72-77,共6页Petrochemical Industry Application

摘　　要：针对海上油田注采井组间连通性差、注采井间受效困难、储层非均质性强、储层污染等因素导致的注采井低产低效等问题,提出了岩石扩容+暂堵转向技术。分析了技术在海上油田完井中的适用性,基于数值模拟等手段对岩石扩容技术开展了优化研究,并进行了矿场应用。结果表明:岩石扩容+暂堵转向技术的改造半径可达60~90 m,储层渗透率提高2~3倍,可有效解决井间连通性差、储层污染;优化储层纵向上的应力分布,改善储层非均质性。矿场试验表明应用井组增产增注量在2倍左右。研究及应用成果为解决此类海上油田低产低效问题提供了有力的技术借鉴。Aiming at the problems of poor connectivity between injection and production well groups in offshore oilfields,difficulty in efficiency between injection-production wells,strong reservoir heterogeneity,low production and low efficiency of injection and production wells caused by reservoir pollution and other factors,a rock expansion+temporary plugging steering technology is proposed.The applicability of the technology in offshore oilfield completion is analyzed.Based on numerical simulation,the expansion of rock is optimized and applied in the mine.The results show that the radius of rock expansion+temporary plugging diversion technology can reach 60~90 m,and the reservoir permeability can be increased by 2~3 times,which can effectively solve the problems of poor connectivity between wells and reservoir pollution.Vertically,the stress is uniformly distributed and the reservoir heterogeneity is significantly improved.The stimulation and injection rate of the applied well group is about 2 times.The research and application results provide a powerful technical reference for solving the problems between injection and production well groups in such offshore oilfields.

关 键 词：岩石扩容 海上油田 注采井组 增产增注 物理解堵 

分 类 号：TE357.12[石油与天然气工程—油气田开发工程]