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今年9月，青岛北海船厂与胜利石油管理局井下作业公司签订了建造“作业三号”修井作业平台合同。“作业三号”是一座齿轮齿条升降的三腿自升式修井作业平台，由平台主体、桩腿、升降系统三部分组成。该平台的作业范围是渤海湾水深5～25m内泥砂质海底的海域或相类似海域。平台的
In September of this year, Qingdao Beihai Shipyard and Shengli Petroleum Administration Underground Operation Company signed a contract for the construction of “Operation No. 3” workover platform. “Job No. 3” is a three-legged self-elevating workover platform with rack and pinion ascending and descending. It consists of platform body, leg and lifting system. The operating range of this platform is the sea area or similar sea area of muddy seafloor in the depth of 5 ~ 25m in Bohai Bay. Platform