The invention discloses an offshore installation process for a deepwater semi-submersible platform. The offshore installation process comprises the following steps that signal chains, signal ropes and rigging are pre-distributed on the semi-submersible platform; the four towing wheels are used for limiting the semi-submersible platform; a pre-laid mooring anchor leg is fished by an engineering ship and is close to the semi-submerged platform, and the signal chain is transmitted to the engineering ship from the semi-submerged platform; the signal chain is connected with the mooring anchor leg; transferring the load of the mooring anchor leg from the working chain to the signal chain; the anchor gear of the semi-submersible platform recycles the signal chain, the mooring anchor leg is pulled and locked at the anchor gear chain stopper, and tie-back work of one mooring anchor leg is completed; and the steps are repeatedly completed, and after tie-back work of other mooring anchor legs is completed in sequence, installation of the semi-submersible platform is completed. The method is reasonable and efficient in design, and smooth offshore installation of the deepwater semi-submersible platform is ensured.

    本发明公开了深水半潜平台海上安装工艺,包括以下步骤:半潜平台进行信号链、信号绳和索具预布;四条拖轮对所述半潜平台进行限位;工程船打捞预铺的系泊锚腿并靠近所述半潜平台,将所述信号链从所述半潜平台传递至所述工程船;将所述信号链与所述系泊锚腿进行连接;将所述系泊锚腿载荷从所述工作链转移至所述信号链;所述半潜平台的锚机回收所述信号链,将所述系泊锚腿抽拉并锁止在锚机止链器处,完成一条所述系泊锚腿的回接工作;重复完成上述步骤,依次完成其他所述系泊锚腿的回接工作后,完成所述半潜平台的安装。本发明设计合理高效,确保深水半潜平台海上安装顺利实施。


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    Title :

    Offshore installation process for deepwater semi-submersible platform


    Additional title:

    深水半潜平台海上安装工艺


    Contributors:
    GAO CHAO (author) / LIN SHOUQIANG (author) / YE YONGBIAO (author) / WANG ZHIFENG (author) / LIU ZUOYU (author) / CHEN CHI (author) / HE FOLIN (author) / LIU WENTAO (author) / LIU SHUSHENG (author) / QIU HAOWEI (author)

    Publication date :

    2022-09-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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