浅谈双层二层台技术在海洋钻修井机上的作用
Brief Analysis of the Role of Double-Deck Technology in Ocean Drilling and Workover Rig

本文介绍了双层自动二层台排管装置在石油天然气海洋模块钻修井机上起下钻作业过程中的作用。该双层自动二层台排管装置利用安装在井架上的上层自动二层台和下层自动二层台，将容易发生弯曲的管柱立根进行位置限定，防止管柱立根变形过大，确保二层台排管机械手能百分之百地捕捉到管柱立根，从而解决了管柱立根易发生中间弯曲现象以及管柱立根在排管过程中被排放的位置具有随意性，导致排管机械手捕捉管柱时捕捉率较低，作业过程中需要人工操作排管机械手捕捉管柱立根的问题。使起下钻作业的一键化操作能够完全实现，排管系统的自动化程度也得到进一步的提高，降低作业司钻人员和人工操作的劳动强度，也大大降低了二层台排管作业事故的发生频率。同时使用双层自动二层台也可以实现三单根小直径管柱立根在钻修井机上进行起下钻作业，相较于两单根立柱起下钻作业，减少了一半的拆接管柱次数，大大降低了作业故障率，使作业效率提高了50%。
This paper introduces the role of the double-layer automatic monkey-board device in the tripping operation of the oil and gas offshore module drilling and workover rig. The double-layer automatic monkey-board pipe arrangement device uses the upper automatic monkey-board and the lower automatic monkey-board installed on the derrick to limit the position of the pipe string riser that is prone to bending, to prevent the pipe string riser from excessive deformation, and to ensure that the monkey-board pipe arrangement manipulator can catch the pipe string riser 100%, thus solving the problem that the pipe string riser is prone to intermediate bending and the position of the pipe string riser is arbitrary during the pipe arrangement process. This leads to the low capture rate when the pipe arranging manipulator captures the pipe string, and the problem that it is necessary to manually operate the pipe arranging manipulator to capture the pipe string in the process of operation. The one-key operation of tripping operation can be fully realized, and the automation degree of the pipe arrangement system has also been further improved, reducing the labor intensity of the operation driller and manual operation, and greatly reducing the frequency of pipe arrangement accidents on the monkey-board. At the same time, the use of double-layer automatic monkey-board can also realize the tripping operation of three single small-diameter pipe strings on the drilling and workover rig. Compared with the tripping operation of two single columns, it reduces the number of pipe string dismantling by half, greatly reduces the operation failure rate, and increases the operation efficiency by 50%.