海洋勘探震源系统数据传输及异常分析

Data Transmission and Anomaly Analysis of Ocean Exploration Source System

葛丰

GE Feng

中石化海洋石油工程有限公司上海物探分公司，上海　200020

Shanghai Geophysical Branch, SINOPEC Offshore Oilfield Services Company, Shanghai 200020, China

海洋地震勘探中使用的数字震源控制系统具有传输距离长、抗干扰能力强、数据量大等优点。然而，在使用过程中常常会遇到GFSM（集成传感器单元）故障和受到感应噪声影响的近场数据等问题，针对这些问题，该文结合数据总线构成、数字系统时分复用传输方式、数据奇偶校验方式、线间干扰和串电感应等实际问题展开分析，通过Python程序分析GFSM数据的奇偶校验方式，提高系统故障判断的准确度；通过分析电容、电感和电阻的耦合感应，得出了电感应对数据准确性的影响较小的结论。通过上述方法，可以快速解决GFSM故障引起的问题，减少对施工效率和产品质量的影响。

The digital source control system used in marine seismic exploration has the advantages of long transmission distance, strong anti-interference ability and large data volume. However, problems such as GFSM (integrated sensor unit) faults and near-field data affected by inductive noise always come with the using process. Aiming at this situation, this paper combined problems such as bus composition, digital system TDM transmission mode, data parity check mode, inter-line interference and series induction, analyzed the parity check mode of GFSM data through Python program. Then improved the accuracy of system fault judgment. By analyzing the coupling induction of capacitance, inductance and resistance, it is concluded that inductance has little influence on data accuracy. In conclusion, methods above are capable of resolving the problems caused by GFSM faults and reducing the impacts on construction efficiency and product quality.

https://doi.org/10.3969/j.issn.1008-2336.2023.03.018