system and method for well control during drilling

摘要

"system and method for drilling an underwater well". The present invention relates to an underwater mud pump that can be used to return heavy drilling fluid to the surface. In order to provide a less stringent requirement for such a pump and to better manage downhole recession in the event of a gas kick or well control event, the gas must be separated from the drilling fluid before the drilling fluid. enter the subsea mud pump and the pressure inside the separation chamber. The suction of the mud pump shall be controlled and maintained at or below ambient seawater pressure. This can be achieved within the undersea bop cavities by a system arrangement and methods explained. This function can be used with or without a drill lift by connecting the underwater bop to a drill unit above the body of water.