The invention discloses a double-main-wellhead drilling system of a semi-submersible drilling platform. The double-main-wellhead drilling system is arranged at the center, corresponding to two wellheads, of a main deck of a ship body of the semi-submersible drilling platform; the double-main-wellhead drilling system comprises a moon pool which is arranged at the middle part of the main deck; the larboard of the moon pool is provided with a Christmas tree treatment system; the starboard of the moon pool is provided with a blowout preventer treatment system; a drilling platform is arranged abovethe moon pool; the drilling platform is correspondingly provided with an instrument/driller's station, a winch pry unit and a duplex derrick; the position of the duplex derrick corresponds to the twowellheads; the top of the duplex well rack is provided with an overhead crane; the double-main-wellhead drilling system further comprises a pipe column stock dump, a water isolating pipe treatment system and a pipe column conveying system, wherein the pipe column stock dump, the water isolating pipe treatment system and the pipe column conveying system are arranged on the main deck; and the Christmas tree treatment system, the blowout preventor treatment system, the water isolating treatment system and the pipe column conveying system are correspondingly distributed in left, right, front andrear directions of the drilling platform. The double-main-wellhead drilling system disclosed by the invention improves the efficiency of drilling operation and improves the safety of an operator.

    本发明公开了一种半潜式钻井平台双主井口钻井系统,设置在与两个井口对应的半潜式钻井平台船体的主甲板中心上,包括设置在主甲板中部的月池,月池的左舷侧设置有采油树处理系统,月池的右舷侧设置有防喷器处理系统,月池上方设置有钻台,钻台上分别设置有仪表/司钻台、绞车撬、双联井架,双联井架位置与两个井口对应,双联井架顶部设置有天车,还包括设置在所述主甲板上的管柱堆场、隔水管处理系统和管柱输送系统,采油树处理系统、防喷器处理系统、隔水管处理系统和管柱输送系统分别分布在钻台的左右前后四个方向。本发明提高了钻井作业效率,提高操作人员的安全性。


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    Titel :

    Double-main-wellhead drilling system of semi-submersible drilling platform


    Weitere Titelangaben:

    一种半潜式钻井平台双主井口钻井系统


    Beteiligte:
    WANG WEIXU (Autor:in) / YANG XIUJU (Autor:in) / ZHANG BIN (Autor:in) / HU NAN (Autor:in) / LI YUNPENG (Autor:in)

    Erscheinungsdatum :

    2020-04-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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