发明名称 A METHOD AND SYSTEM FOR FACILITATING ASSEMBLY OF A DRILLING RIG
摘要 A method and system for facilitating assembl y of a dr illing rig, the method comprising the steps of assembling a substructure (20) of a drilling rig, wherein the substructure compris es a lower structure (14) arranged on the ground and an upper structure (12) arranged thereabove and connected thereto characte rised in that said upper structure (12) ha s an upper open space, the lower structure has a lower open space, at least a portion of the upper open space above the lower open space, moving with a vehicle (Tg,Th) on the ground a floor section (19) into at lea st a portion of said upper and lower space and securing the floor section (19) to the substructure.
申请公布号 CA2716749(A1) 申请公布日期 2009.09.03
申请号 CA20092716749 申请日期 2009.02.27
申请人 NATIONAL OILWELL VARCO, L.P. 发明人 DONNALLY, ROBERT BENJAMIN;REN, CHUNQIAO;LIU, XILIN;SHENG, HUI CHUN;YU, YAN;MCCURDY, STUART ARTHUR LYALL
分类号 E21B15/00;E21B7/02 主分类号 E21B15/00
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