海上低渗超低渗气藏产能释放增产技术  

Productivity release and production increase technology for offshore low permeability and ultra-low permeability gas reservoirs

作　　者：王巍 刘喜亮[2] 杨洪烈[2] 任坤峰 WANG Wei;LIU Xi-liang;YANG Hong-lie;REN Kun-feng(Zhanjiang Branch, CNOOC China Limited, Zhanjiang 524057, China;Zhanjiang Branch, China Oil Field Services Limited, Zhanjiang 524057 , China;Hubei Oilfield Chemical Industry Technology Research Institute, Jingzhou 434000, China)

机构地区：[1]中海石油(中国)有限公司湛江分公司,广东湛江524057 [2]中海油田服务股份有限公司湛江分公司,广东湛江524057 [3]湖北省油田化学产业技术研究院,湖北荆州434000

出　　处：《精细与专用化学品》2019年第7期26-29,共4页Fine and Specialty Chemicals

摘　　要：海上低渗超低渗油气藏由于自然产能较低,需要采用一定的储层改造措施来释放油气井产能。通过对目前国内外低渗透储层常用的压裂增产技术进行调研,并分析其应用于海上低渗透油气储层的可行性。结果表明,海上低渗超低渗气藏由于受完井方式、作业空间以及经济成本的影响,不适合采用大型酸化压裂措施。常规酸化解堵措施以其增产效果好、施工方便以及成本低等特点,比较适合海上低渗透油气藏的增产改造需求。调研并分析了海上油气田常用的酸化解堵产能释放增产体系,并重点分析了自生酸体系、复合酸体系以及完井产能释放液体系的应用效果。提出了海上低渗超低渗气藏产能释放增产技术的发展趋势。Due to the low natural productivity of offshore low permeability and ultra-low permeability reservoirs, it is necessary to adopt certain reservoir modification measures to release the productivity of oil and gas wells. By investigating the fracturing stimulation technology commonly used in low permeability reservoirs at home and abroad, and analyzing the feasibility of its application in offshore low permeability reservoirs, the results show that the offshore low permeability and ultra-low permeability gas reservoirs are not suitable for large-scale acidizing fracturing because of the influence of completion mode, operation space and economic cost. Conventional acidizing plugging removal measures are more suitable for offshore low permeability reservoirs because of their good stimulation effect, convenient construction and low cost. This paper investigates and analyses the commonly used acidizing plugging removal productivity release and stimulation systems in offshore oil and gas fields, and emphatically analyses the application effects of authigenic acid system, composite acid system and completion productivity release fluid system. The development trend of productivity release and stimulation technology for offshore low permeability and ultra-low permeability gas reservoirs is put forward.

关 键 词：低渗透气藏 产能释放 压裂增产 酸化解堵增产 

分 类 号：TE53[石油与天然气工程—油气田开发工程]