DRILLING SYSTEM CAPABLE OF FACILITATING INSTALLATION IN A DRILLING WORK

摘要

PURPOSE: A drilling system is provided to facilitate the adjustment of the inner pressure of a drilling hole by the adjustment of the height of a fluid column by drilling fluid inside a riser.;CONSTITUTION: A drilling system(100) comprises a platform(110), a drill string(120), a riser(130), a pump unit(150), and a pressure adjustment unit(140). The platform stores drilling fluid(126). The drill string supplies drilling fluid stored in the platform to a drilling hole(124). The riser provides a path in which drilling fluid provided to the drilling hole is collected from the drilling hole. The pump unit transfers the drilling fluid of the riser inside to the platform. The pressure adjustment unit controls the inner pressure of the drilling hole.;COPYRIGHT KIPO 2011