Research Progress on Well Control Risk Management Technology for Deep Sea and Ultra-deep Water Drilling
The development of offshore oil and gas has broad prospects,but also faces enormous risks and chal-lenges,such as the deep water depth,long distance from platform to land,harsh environmental conditions and so on.An accident such as a blowout explosion on the platform could lead to very serious consequences including casualties,environmental pollution and diplomatic disputes.Therefore,the development of well control risk man-agement technology in deep water is particularly important.Based on theoretical research and independent techno-logical innovation,CNOOC has initially established a system of the basic theory and key technologies to tackle the challenges of far-reaching sea and ultra-deep water.This system incorporated several key theories and technologies including the mechanism of formation and evolution of major accidents in deep-water drilling and accident scenar-io re-construction technology,the co-existence mechanism of kick and lost circulation for deep sea drilling and in-telligent control technology for well pressure,intelligent monitoring and warning technology for deep-water drill-ing,and ultra-deep water drilling emergency response technology.On the basis of summarizing the research pro-gress of the above key technologies for well control emergency response,this paper puts forward the following de-velopment suggestions:continuous pursuit of well control safety,strengthening emergency response ability build-ing,accelerating the localization of key well control software and equipment,and continuously enhancing the intel-ligence of deep water well control and emergency response technology,etc,which can further promote the devel-opment and progress of far-reaching offshore well control technology.
deep sea and ultra-deep wateroffshore oil and gaswell control risksafety emergency
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