SUBSEA WELLBORE OPERATIONS VESSEL |
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| 申请号 | US15865821 | 申请日 | 2018-01-09 | 公开(公告)号 | US20180127065A1 | 公开(公告)日 | 2018-05-10 |
| 申请人 | ITREC B.V.; | 发明人 | Joop ROODENBURG; Diederick Bernardus WIJNING; | ||||
| 摘要 | A method for assembly of a riser string onboard a vessel that is adapted to perform subsea wellbore related operations involving said riser string, said riser string being configured to extend between a subsea wellbore and the vessel in a wellbore related operation, wherein the vessel including a hull, a riser storage adapted to store therein, in horizontal orientation, multiple pre-assembled riser stands and/or multiple individual riser stand, a deck structure having an elongated transfer opening above said riser storage, a transfer elevator, wherein multiple pre-assembled riser stands, each being pre-assembled from multiple riser sections connected end-to-end and each having a length of at least 150 ft. (45.72 m), and/or multiple individual riser sections each having a length of at least 150 ft. (45.72 m), are stored, in said horizontal orientation, in the riser storage, wherein the method comprises a riser transfer step wherein the transfer elevator is operated so as to raise a single one of said pre-assembled riser stands and/or individual riser sections in the horizontal position thereof from the riser storage, through the transfer opening, to a position above the deck structure. | ||||||
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