海底电缆地震勘探综合导航系统设计与研制

The Design and Research of OBC Seismic Integrated Navigation System

海底电缆(ocean bottom cable,OBC)地震勘探是浅海石油地震勘探的主要勘探方法。首先,分析了当前OBC地震勘探作业采用的导航系统存在的问题,并提出了一种新的不仅包含放缆导航作业、电缆定位及野外地震资料采集能力,还满足安全管理需要的系统总体设计和多船分布式设计方案。阐明了系统应包含的中央集中控制和远程控制,地震同步采集控制等主要功能。通过野外应用表明:研制完成的新系统提高了野外作业同步采集精度,实现了船队内部的数据共享和可视化管理,满足了统一生产指挥及安全管理的需要。

OBC seismic exploration is the main shallow seismic exploration method. At the beginning, the new system design based on the multi-vessels distributed architecture was delivered based on the analysis of the OBC fleet operation and management in field, it is not only includes the deployment navigation, the second positioning of OBC cable and the synchronized seismic acquisition, but also it meet the requirement of filed operation management and HSE management. Then the main functions of integrated system are presented. The field application shows that the new system improves the accuracy of synchronous acquisition and achieves a fleet internal data sharing and visualization to meet the needs of production and safety management in the field.