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Moon pool and drillship comprising same

A drilling ship and moon pool technology, applied in the field of moon pool drilling ships, can solve the problems of complex structure, not widely used, high cost of installation and maintenance of movable opening/closing devices, and achieve the goal of reducing the range of motion and increasing the overall length Effect

Inactive Publication Date: 2011-09-21
SAMSUNG HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition in said moon pool is complex in comparison with its effect, and because the installation and maintenance cost of the movable opening / closing device is very high, it is not widely used

Method used

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  • Moon pool and drillship comprising same
  • Moon pool and drillship comprising same
  • Moon pool and drillship comprising same

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Embodiment Construction

[0046] Next, specific embodiments of the present invention will be described with reference to the drawings.

[0047] figure 1 is a top view of the moon pool according to the first embodiment of the present invention, figure 2 is along figure 1 Cutaway view when looking at II-II.

[0048] refer to figure 1 and figure 2 , the moon pool 5 according to the first embodiment of the present invention is formed between the bow and the stern of the drilling ship 1, and includes a first space 10 for performing drilling operations and adjacent to the first space 10 forms the second space 20 .

[0049] The first space 10 is formed by penetrating the upper deck 2 from the bottom surface 3 of the drill ship 1 . In this case, the first space 10 may be formed vertically from the bottom surface 3 of the drill ship 1 , the first space 10 may be formed by inner walls 51 , 52 , 53 , 54 , 55 extending vertically in the hull 50 of the drill ship 1 . limit.

[0050] refer to figure 1 , t...

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Abstract

The present 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.

Description

technical field [0001] The present invention relates to a moon pool and a drilling ship with the moon pool, more particularly to a moon pool and an improved moon pool structure to reduce the damage caused by the flow of seawater in the moon pool during the navigation of the drilling ship. Swing and drag of the moon pool's drill ship. Background technique [0002] With the rapid development of industry and manufacturing on a global scale, the use of fossil fuels such as petroleum has increased, and international oil prices have soared steadily. Accordingly, stable production and supply of crude oil has become an increasingly important issue. [0003] For this reason, small-scale deep-water oil fields, which have been neglected until recently because drilling is technically difficult and economically unfeasible, have received little attention until recently. With the development of resource development technology, ships with drilling rigs suitable for developing oil fields I...

Claims

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Application Information

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IPC IPC(8): B63B35/44E21B15/02B63B3/00
CPCB63B3/14B63B1/00B63B9/00B63B2003/147B63B71/00B63B3/00B63B11/00B63B35/44E21B15/02
Inventor 孙惠钟金洙亨
Owner SAMSUNG HEAVY IND CO LTD
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