Xu Jian, Yang Dexing, Qin Chuan, Jiang Yajun, Sheng Leixiang, Jia Xiangyun, Bai Yang, Shen Xiaohong, Wang Haiyan, Deng Xin, Xu Liangbin, Jiang Shiquan
Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China.
The Key Laboratory of Space Applied Physics and Chemistry, School of Science, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China.
Sensors (Basel). 2015 Nov 24;15(11):29648-60. doi: 10.3390/s151129648.
To meet the requirements of riser safety monitoring in offshore oil fields, a new Fiber Bragg Grating (FBG)-based bundle-structure riser stress monitoring sensor has been developed. In cooperation with many departments, a 49-day marine test in water depths of 1365 m and 1252 m was completed on the "HYSY-981" ocean oil drilling platform. No welding and pasting were used when the sensor was installed on risers. Therefore, the installation is convenient, reliable and harmless to risers. The continuous, reasonable, time-consistent data obtained indicates that the sensor worked normally under water. In all detailed working conditions, the test results show that the sensor can do well in reflecting stresses and bending moments both in and in magnitude. The measured maximum stress is 132.7 MPa, which is below the allowable stress. In drilling and testing conditions, the average riser stress was 86.6 MPa, which is within the range of the China National Offshore Oil Corporation (CNOOC) mechanical simulation results.
为满足海上油田立管安全监测的要求，开发了一种新型的基于光纤布拉格光栅（FBG）的束状结构立管应力监测传感器。与多个部门合作，在“海洋石油981”海洋石油钻井平台上完成了在1365米和1252米水深的49天海上试验。传感器安装在立管上时无需焊接和粘贴。因此，安装方便、可靠，对立管无害。所获得的连续、合理、时间一致的数据表明传感器在水下正常工作。在所有详细工况下，测试结果表明该传感器在反映应力和弯矩的大小和方向方面都表现良好。测得的最大应力为132.7兆帕，低于允许应力。在钻井和测试条件下，立管平均应力为86.6兆帕，在中国海洋石油总公司（中海油）力学模拟结果范围内。
