Comments on: Simplified model clarifies connection between MPD well control equipment, safety barriers /simplified-model-clarifies-connection-between-mpd-well-control-equipment-safety-barriers-22533 Get the latest oil drilling news with Èý•NÌåÓý Tue, 14 May 2013 13:54:53 +0000 hourly 1 https://wordpress.org/?v=6.1.1