海上地震勘探拖缆定位数据处理系统设计与实现  

Design and realization of a precise positioning system for offshore towed-streamer seismic exploration

作　　者：吴佩达 张昊楠[2,3] 阮福明 胡广浩[2,3] 匡翠林 余文坤[1] Wu Peida;Zhang Haonan;Ruan Fuming;Hu Guanghao;Kuang Cuilin;Yu Wenkun(School of Geosciences and Info-physics,Central South University,Changsha 410083,China;China Oilfield Services Limited Geophysical Division,Tianjin 300451,China;National Engineering Laboratory for Offshore Oil Exploration,Beijing 100028,China)

机构地区：[1]中南大学地球科学与信息物理学院,长沙410083 [2]中海油田服务股份有限公司物探事业部,天津300451 [3]海洋石油勘探国家工程实验室,北京100028

出　　处：《工程勘察》2021年第4期62-65,共4页Geotechnical Investigation & Surveying

摘　　要：拖缆定位数据处理系统是海上拖缆地震勘探综合导航系统的核心,为满足拖缆高精度定位应用需求,根据DGPS、RGPS、声学距离、罗经鸟方位角等多种导航定位传感器数据的特点,研究了拖缆高精度定位平差处理算法与处理流程等关键技术,设计了基于滑动窗口的观测数据存储结构和基于国际标准数据格式P2/94的类结构,使用C++语言开发实现了拖缆定位数据处理系统。海试结果表明,该系统的定位精度和性能达到了国际先进海上地震勘探导航定位产品的水平。The streamer positioning data processing system is the core of the integrated navigation system for offshore towed-streamer seismic exploration.To meet the requirements of precise positioning,according to the characteristics of DGPS,RGPS,acoustic distance,compass azimuth,and other navigation and positioning sensor data,the key technologies such as the streamer high-precision positioning adjustment algorithm and data processing flow are studied,the observation data storage structure based on sliding window and the class structure based on the international standard data format P2/94 are designed,and the streamer positioning data processing system is developed using C++.The sea trial results show that the positioning accuracy and performance of the system have reached the level of international advanced marine seismic exploration navigation and positioning products.

关 键 词：海上拖缆地震勘探 定位导航 数据处理 系统设计 

分 类 号：P631.4[天文地球—地质矿产勘探]