Progress and Thinking of Ultra-deep Well Overflow Monitoring Equipment and Well Press Technology
As the exploration and development move towards ultra-deep layers,the well control risks faced by engineering operations are becoming increasingly prominent.With the increase of the risk of kick and loss and the difficulty of well killing in the drilling process,how to improve the timeliness of detection and the success rate of well killing is an on-site problem that needs to be solved urgently.This article investigates the research progress of kick and loss detection equipment and well killing technology in ultra-deep well drilling process,elaborates on the research and development status of kick and loss detection and well control equipment,including precise monito-ring technology for large displacement outlet flow rate,automatic fill-up during tripping and kick and loss detec-tion technology,continuous monitoring technology for annular liquid level,and digital monitoring technology for circulating tank volume.It also discusses the research progress of well killing theory and technology in ultra-deep wells.It is discussed about the development trend of AI drilling kick and loss detection system,downhole early kick and loss monitoring technology,automatic and intelligent well kill technology,etc.The downhole-surface kick and loss detection equipment for the whole drilling process has been formed,and the early warning software and the complex well condition kill simulation system based on multi-source data fusion developed,which further improves the timeliness and accuracy of detection,improves the success rate of complex well killing,and pro-vides technical support for the safety well control of ultra-deep well.
ultra-deep wellskick and loss detectionwell killing technologytechnical statusdevelopment trend