摘要
渤海某注水开发油田经历多年的开发生产,进入高含水采油阶段,综合含水达到71%,面临储层压力亏空、油层水淹严重等问题,剩余油的分布呈现局部富集的特点。在综合调整阶段,通过优化加密井网,提高单井控制程度。在完井作业中采取储层保护、优化射孔参数、合理选择负压值、一趟多层砾石充填工艺等针对性技术措施,有效改善了水驱开发效果,提高了采收率,为进一步发掘高含水油田潜力、提高整体动用程度的开发工作提供借鉴和指导。
Through years of development and production, a waterflooded oilfield of Bohai has entered into the stage of high water cut oil production, with comprehensive water cut reached 71%, facing many serious problems such as reservoir pressure depletion and oil layer being water flooded. The remaining oil distribution became local enrichment. In comprehensive adjustment phase, by opti- mizing the well pattern, degree of single well control has been improved. During the completion operations, by means of reservoir protection, perforation parameters optimization, choice of reasonable negative pressure value, a trip to multi-layer gravel packing technology and other specific technical measures, the oilfield development effects and recovery by water flooding have been im- proved effectively, which provided reference and guidance for further exploring the potential of high water cut oilfield and improving the overall degree of development.
出处
《海洋石油》
CAS
2016年第3期88-92,113,共6页
Offshore Oil
关键词
注水开发
压力亏空
水淹
高含水
采收率
Waterflooding development
reservoir pressure depletion
water flooded reservoir
high water cut
oil recovery
