发明名称 DRILLING SYSTEM
摘要 Disclosed is a drilling system which has a blow-out preventer (BOP) installed in a sea bottom. The drilling system comprises: a riser which has a side surface opened and closed; an opening and closing door which is installed on the side surface of the riser to open and close the riser; a first mud cutoff device which is horizontally installed inside the riser and cuts off mud flowing downward; and a second mud cutoff device which is horizontally installed inside the BOP and cuts off mud flowing upward. Therefore, the present invention allows equipment to enter the inside of the riser and performs work inside the riser.
申请公布号 KR20160036259(A) 申请公布日期 2016.04.04
申请号 KR20140128233 申请日期 2014.09.25
申请人 DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD. 发明人 BAE, JAE RYU;CHOO, GYO SIG;KIM, IN SOO;LEE, SOO HO;KIM, JIN KANG;JANG, UNG KWON;LEE, KYOO SEOG;KIM, GUN HO;KWON, JUNG HAN;KIM, SUNG SOO
分类号 E21B17/01;E21B41/00 主分类号 E21B17/01
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