高频磁耦合有缆钻杆信道的联合仿真设计

doi:10.7623/syxb201904009

石油学报 ›› 2019, Vol. 40 ›› Issue (4): 475-481.DOI: 10.7623/syxb201904009

高频磁耦合有缆钻杆信道的联合仿真设计

胡永建, 黄衍福, 刘岩生

中国石油集团工程技术研究院有限公司北京 102206

收稿日期:2018-07-18 修回日期:2019-02-21 出版日期:2019-04-25 发布日期:2019-05-07
通讯作者: 胡永建,男,1970年5月生,1992年获西安交通大学学士学位,1995年获北京大学硕士学位,现为中国石油集团工程技术研究院有限公司高级工程师,主要从事石油钻井井下仪器及通讯设备研制。Email:huyongjian32788@163.com
作者简介:胡永建,男,1970年5月生,1992年获西安交通大学学士学位,1995年获北京大学硕士学位,现为中国石油集团工程技术研究院有限公司高级工程师,主要从事石油钻井井下仪器及通讯设备研制。Email:huyongjian32788@163.com
基金资助:
国家科技重大专项（2016ZX05020-005-001）资助。

Joint simulation design of the channel of high-frequency magnetic coupling wired drill pipe

Hu Yongjian, Huang Yanfu, Liu Yansheng

CNPC Engineering Technology R & D Co., Ltd., Beijing 102206, China

Received:2018-07-18 Revised:2019-02-21 Online:2019-04-25 Published:2019-05-07

摘要/Abstract

摘要：

为了延长高频磁耦合有缆钻杆的无中继传输距离，使用电磁结构仿真与线性仿真的联合仿真技术对信道建模并仿真。高频磁耦合有缆钻杆信道是重复的基本单元的级联，基本单元包含磁耦合线圈副与同轴电缆。对磁耦合线圈副，电路理论建模需要通过测量样品等得到元件参数，有些参数不易测量，有些结构及材料参数不易体现在模型中，而电磁结构仿真能够解决这些问题。对于同轴电缆这类大尺寸模型，电磁结构仿真耗时长，使用线性仿真可以保证仿真精度、缩短仿真时间。联合仿真技术弥补了单一仿真的缺陷，经实验验证，仿真结果与实际测量结果一致。通过联合仿真研究了基本单元级联数量、有缆钻杆尺寸、铁氧体磁芯磁导率及隔离隙等对谐振峰载波频点和衰减的影响，完成了高频磁耦合有缆钻杆信道的阻抗匹配和优化设计，使无中继传输距离达到了300 m以上，有效减少了中继器的使用数量，在降低成本的同时提高了信道可靠性，并完成了现场试验。

关键词: 磁耦合有缆钻杆, 智能钻杆, 信息钻杆, 信道建模, 电磁结构仿真, 线性仿真, 联合仿真

Abstract:

To extend the no-relay transmission distance of high-frequency magnetic coupling wired drill pipe, the joint simulation technology involving both the electromagnet structure simulation and linear simulation are used for channel modeling and simulation. The channel of high-frequency magnetic coupling wired drill pipe is a cascade of duplicate basic units which consists of a magnetically coupled coil pair and coaxial cables. For the magnetically coupled coil pair, the modeling based on circuit theory needs the measurements of sample to obtain element parameters. Some parameters are not easy to measure, and some structural and material parameters are not easily reflected in the model. The electromagnet structure simulation can solve these problems. For large size models such as coaxial cable, the electromagnetic structure simulation takes a long time. The simulation accuracy and less simulation time can be guaranteed by linear simulation. The joint simulation technology makes up for the defects of single simulation, and the simulation results are consistent with the actual measurement results. The influences of the cascade number of basic units, size of the wired drill pipe, permeability of the ferrite core, as well as isolation gap on the frequency point and attenuation of resonant peak carrier are studied by joint simulation. On this basis, the impedance matching and optimal design for the channel of high-frequency magnetic coupling wired drill pipe is completed. The no-relay transmission distance is more than 300 meters to effectively reduce the number of repeaters. The reliability of channel is improved and the onsite test is completed at a low cost.

Key words: magnetic coupling wired drill pipe, IntelliPipe, InforPipe, channel modeling, electromagnet structure simulation, linear simulation, joint simulation

中图分类号:

TE931

胡永建, 黄衍福, 刘岩生. 高频磁耦合有缆钻杆信道的联合仿真设计[J]. 石油学报, 2019, 40(4): 475-481.

Hu Yongjian, Huang Yanfu, Liu Yansheng. Joint simulation design of the channel of high-frequency magnetic coupling wired drill pipe[J]. Acta Petrolei Sinica, 2019, 40(4): 475-481.

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高频磁耦合有缆钻杆信道的联合仿真设计

Joint simulation design of the channel of high-frequency magnetic coupling wired drill pipe

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