双船配合作业模式下导管架海上安装方法研究

Research on the Offshore Jacket Installation Method Between Two Floating Cranes

海洋平台导管架海上安装是海洋油气田开发的重要环节之一,往往采用1条主作业船进行海上作业。对于安装工期紧张、作业窗口窄的项目,双主作业船配合完成作业以缩短安装工期具有积极意义。针对传统作业模式和双主作业船作业模式对导管架安装工期和船天投入进行定量分析研究,并通过工程实例印证双主作业船模式可显著缩短安装工期,具有一定的推广价值。

Jacket offshore installation is one of the most important parts in offshore oil and gas fields development. In general, one floating crane is used for offshore operation. For the project with tight installation period and narrow operating window, it is of positive significance to adopt two floating cranes for joint works to shorten the installation period. In view of the traditional operation mode and the joint mode of two floating cranes for jacket offshore installation, quantitative analysis and study have been carried out for installation duration and ship / days, and through the engineering practice, it is confirmed that the joint mode of two floating cranes can significantly shorten the installation duration and has a certain promotional value.