In offshore drilling systems, the equipment localization rate is less than 20%, and the monopoly of a few foreign conglomerates over the equipment is intensifying. To break this monopoly, active technology development and market entry strategies are required. In a drillship or a floating production, storage, and offloading unit, the distance from the tank top to the upper deck is approximately 30–40 m. Therefore, the pressure loss problem inside the vertical pipe from the tank to the deck should be considered. To transport the bulk at the target transport rate without clogging, the pressure loss inside the vertical pipe should be optimized. Moreover, the operating pressure, air volume, and transport rate accuracy determine the system and operating costs. Hence, system optimization is necessary. In this study, pressure loss modeling and simulation of the bulk transfer system are performed to prevent frequent pipeline clogging. The proposed simulation model is verified using real test data. The bulk transfer system is verified through a simulation, indicating an error rate of 4.27%. In addition, the number of air boosters required to minimize the pipeline’s pressure loss and the optimal distance between the boosters are obtained using a genetic algorithm. With the optimized air booster, pressure loss for approximately 0.54 bar was compensated. The improved bulk transfer system is expected to reduce uncertainty and minimize maintenance and repair costs during operation. Moreover, it can contribute to high-value fields such as construction, commissioning, installation, maintenance, and equipment localization improvement.

中文翻译：

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优化压力损失以减少海上钻机散装运输系统中的管道堵塞

在海上钻井系统中，设备的本地化率不到20％，少数外国企业集团对设备的垄断正在加剧。为了打破这种垄断，需要积极的技术开发和市场进入策略。在钻井船或浮动生产，存储和卸货单元中，从罐顶到上甲板的距离约为30-40 m。因此，应考虑从油箱到甲板的垂直管内部的压力损失问题。为了以目标运输速率运输散装货物而不会发生堵塞，应优化垂直管内部的压力损失。此外，工作压力，空气量和运输速率的准确性决定了系统和工作成本。因此，系统优化是必要的。在这个研究中，为了防止频繁的管道堵塞，对整体传输系统进行了压力损失建模和仿真。使用实际测试数据验证了所提出的仿真模型。通过仿真验证了批量传输系统，表明错误率为4.27％。此外，使用遗传算法可以获得最小化管道压力损失所需的空气增压器数量以及这些增压器之间的最佳距离。使用优化的空气增压器，可以补偿大约0.54 bar的压力损失。改进后的散装运输系统有望减少不确定性，并在运行期间将维护和维修成本降至最低。而且，它可以为高价值领域做出贡献，例如建设，调试，安装，维护和设备本地化。