MOON POOL AND DRILLSHIP COMPRISING SAME

WIPO Patent Application WO/2010/050680

A2

The invention relates to a moon pool and to a drillship comprising same. The moon pool is formed in the drillship, and comprises a first space penetrating through an upper deck from the bottom surface of the drillship to enable drilling, and a second space which is formed at the side portion of the first space in the lengthwise direction of the drillship, and which has a bottom surface opened toward the lower side of the drillship. As the second space of the moon pool is formed at the side portion of the first space of the moon pool in the lengthwise direction of the drillship, the moon pool has an elongate effective length, to thereby vary the vertical movement of the seawater in the moon pool and reduce resistance of the drillship during sailing. Further, a separation wall is arranged such that a top surface thereof is located at a predetermined height between the first space and the second space, to reduce the amplitude of sloshing movement of the seawater in the moon pool, and reduce resistance caused by the sloshing movement. Further, the opening opened toward the lower side of the first space keeps the transverse width thereof at a constant level in the direction of the stern of the drillship, and then is gradually tapered, thereby relatively reducing the amount of seawater flowing into the first space and reducing resistance of the drillship.

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SON HYE-JONG (KR)
KIM SU-HYUNG (KR)

PCT/KR2009/005703

May 06, 2010

October 06, 2009

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SAMSUNG HEAVY IND (KR)
SON HYE-JONG (KR)
KIM SU-HYUNG (KR)

B63B35/44; B63B35/00; E21B15/02

US6397770B1	2002-06-04
KR20000004704A	2000-01-25

YOO JAEHOON ET AL.: 'Performance of Drillship with Moonpool and Azimuth Thrusters' JOURNAL OF THE SOCIETY OF NAVAL ARCHITECTS OF KOREA vol. 41, no. 6, 01 December 2004, ISSN 1225-1143 pages 33 - 39
KIM, DO JEONG ET AL.: 'An Experimental Study on the Moonpool Characteristics of a Cleaning Ship for Ocean Environment Purification' JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY vol. 20, no. 2, 01 April 2006, ISSN 1225-0767 pages 46 - 51

EZ INTERNATIONAL PATENT & TRADEMARK LAW OFFICE (KR)
특허법인이지 (KR)

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