The present invention relates to a drillship having a unit-type derrick structure. The drillship of the present invention has a turn table-type derrick structure and enables drilling operations to be carried out outside both sides of the ship since the derrick structure is rotated at 90 degrees during the real drilling operation. Since a separate moonpool structure and a hole in a bottom shell plate are not required, efficiency in the aspect of hull resistance can be improved, and simplification of a mooring system and saving of the capacity of the main engine can be expected. There has been some decreases in productivity caused by interference when a hull and the derrick structure are built in conventional ways. However, according to the present invention, since most of drilling equipment are made into units and installed in the derrick structure, the interface problem can be solved. Especially, interface points can be significantly reduced since the turn table-type derrick structure includes piping-related equipment such as a mud system.

    본 발명은 유니트화된 데릭 구조를 갖는 드릴십에 관한 것으로, 턴 테이블(TURN TABLE)화 된 데릭 구조를 구비함으로써, 실제 시추 운전시에는 데릭 구조물을 90°로 회전하여 사용함으로써, 선체 양측 밖에서 시추 작업이 이루어짐에 따, 별도의 문풀 구조를 가지지 않아도 되어 선저 외판에 홀을 형성할 필요가 없어 선체 저항 측면에서 효율 향상을 가져오며, 무어링 시스템(MOORING SYSTEM)의 간소화는 물론 메인 엔진의 캐퍼시티 절감을 예상할 수 있다. 또한, 종래에는 선체와 데릭 구조물을 탑재할 때에, 많은 간섭으로 인하여 생산성 저하의 원인이 되고 있지만, 본 발명의 기술을 도입할 경우 대부분의 시추 장비를 데릭 구조물에 유니트화 하여 설치함으로써, 인터페이스 문제를 해결할 수 있으며, 특히 머드 시스템 등의 배관 관련 장비를 턴 테이블화 된 데릭 구조물에 포함함으로써, 인터페이스 포인트를 대폭 줄일 수 있다.


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    Title :

    DRILL SHIP HAVING UNIT TYPE DERRICK STRUCTURE AND DRILLING METHOD USING THE UNIT TYPE DERRICK STRUCTURE


    Additional title:

    유니트화된 데릭 구조를 갖는 드릴십 및 그 유니트화된 데릭 구조를 이용한 시추 방법


    Contributors:
    MOON SANG WON (author) / KIM JONG LIB (author) / LEE MU YEOL (author) / LEE SOO HO (author) / KIM SUNG SOO (author)

    Publication date :

    2015-07-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

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



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