摘要
海上油田多采用强注强采开采方式,储层非均质性进一步加剧,导致大孔道的形成,水驱效果明显变差,因此开展大孔道识别及相应调剖调驱技术研究是海上油田稳产的关键。大孔道的识别主要有生产动态监测法、试井资料法、示踪剂监测法、测井资料法、综合评价法等,应综合应用各种技术实现大孔道半定量-定量识别。目前海上油田针对大孔道主要有冻、凝胶、聚合物微球、深部液流转向、分级组合等调剖调驱技术,具有各自特点和适用条件,应根据不同的油藏特点及经济效果预测,选择有针对性的体系,实现堵、调、洗、驱有机结合。
The reservoir heterogeneity of offshore oilfield is aggravated because of intensive injection and production,thus leading to the formation of large channels and the water flooding effect was deteriorated.Therefore, big channel recognition and the corresponding profile control and flooding technology research is the key to stable offshore oilfield production.The main big channel recognition techniques are summarized as follows,production performance monitoring,well testing,well tracer testing,well logging and comprehensive evaluation method.Various techniques should be integrated to realize semi-quantitative and quantitative identification of big channel.Many profile control and flooding techniques for big channel are developed in recent years,thus as gel,polymer microspheres,deep fluid diversion and classified combination.Each technique has its own characteristics and application condition, specific system should be selected according to different reservoir characteristics and economic pre-diction results, thus to integrate the process of blocking,profile modification, oil washing and flooding.
出处
《石油化工应用》
CAS
2016年第5期1-4,共4页
Petrochemical Industry Application
关键词
海上油田
大孔道识别
示踪剂监测
调剖调驱
offshore oilfield
high capacity channel recognition
tracer monitoring
profile control and flooding
