海洋物探地震数据采集与记录系统
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摘要
设计了一种基于CPCI总线、二级分布式海洋地震拖缆数据采集与记录系统,包括水下采集与传输系统、船载记录系统。系统的主要特点是单检波器、道间距为3.125m、24位ADC。系统主要指标动态范围为115dB,谐波畸变为-106dB,系统容量支持单缆1920道、1ms采样间隔,可同时连接4缆。系统经过海试,采集了地震数据,绘出了地震剖面图,各项技术指标达到了要求。
Paper designs a kind of ocean seismic data acquisition and recording system based on CPCI bus and two-staged distribution architecture.The system includes underwater data sampling and communication subsystem and on shipboard recording subsystem.The main characteristic is single hydrophone,3.125m channel distance and 24 bit ADC.Its dynamic range achieves 115 dB,THD-106 dB.It supports 1920 channels per cable,1ms sampling interval,connecting 4 streamers at one time.The system has been tested on the sea,it could collect seismic data,plot a profile graph,achieved all technical target.This is the first near ten thousand channels ocean seismic survey equipment which China owns the intellectual property.
Paper designs a kind of ocean seismic data acquisition and recording system based on CPCI bus and two-staged distribution architecture.The system includes underwater data sampling and communication subsystem and on shipboard recording subsystem.The main characteristic is single hydrophone,3.125m channel distance and 24 bit ADC.Its dynamic range achieves 115 dB,THD-106 dB.It supports 1920 channels per cable,1ms sampling interval,connecting 4 streamers at one time.The system has been tested on the sea,it could collect seismic data,plot a profile graph,achieved all technical target.This is the first near ten thousand channels ocean seismic survey equipment which China owns the intellectual property.
引文
[1]陆基孟.地震勘探原理[M].北京:中国石油大学出版社,2006.
[2]曹平,宋克柱.海洋石油勘探数据采集与记录系统主控软件设计与实现[J].中国科学技术大学学报,2006,36(3):258-263.Cao Ping,Song Ke-zhu.Design and realization of system node software on the offshore oil prospect data acquisition and recording system[J].Journal of University of Science and Technology of China,2006,36(3):258-263.
[3]王超,宋克柱,唐进.高性能水下地震数据采集系统设计与实现[J].吉林大学学报:工学版,2007,37(1):168-172.Wang Chao,Song Ke-zhu,Tang Jin.High per-formance data acquisition system marine seismic sur-vey[J].Journal of Jilin University(Engineering and Technology Edition),2007,37(1):168-172.
[4]程敬原,宋克柱,杨俊峰.时移地震数据采集和记录系统中的单缆测试系统设计[J].吉林大学学报:工学版,2006,36(2):237-241.Cheng Jing-yuan,Song Ke-zhu,Yang Jun-feng.Sin-gle-cable checking systemfor time-lapse marine seis-mic data acquisition and recording system[J].Jour-nal of Jilin University(Engineering and Technology Edition),2006,36(2):237-241.
[5]伍尚坤,宋克柱,吴义华.高谱纯度低频信号源的设计与实现[J].核电子学与探测技术,2006,26(6):936-938.Wu Shang-kun,Song Ke-zhu,Wu Yi-hua.A high-performance wave-generator based on DAC[J].Nu-chear Electronics&Detection Technology,2006,26(6):936-938.
[6]陈佳,宋克柱,曹平.分布式海洋石油勘探系统主控软件关键算法[J].计算机工程与应用,2006,42(8):230-232.Chen Jia,Song Ke-zhu,Cao Ping.Pivotal algorithms of console software on the distributed offshore oil prospect system[J].Computer Engineering and Ap-plications,2006,42(8),230-232.
[7]Anon.Model for4C/4D-seismic-data acquisition[J].Journal of Petroleum Technology,2000,52(1):32-33.
[2]曹平,宋克柱.海洋石油勘探数据采集与记录系统主控软件设计与实现[J].中国科学技术大学学报,2006,36(3):258-263.Cao Ping,Song Ke-zhu.Design and realization of system node software on the offshore oil prospect data acquisition and recording system[J].Journal of University of Science and Technology of China,2006,36(3):258-263.
[3]王超,宋克柱,唐进.高性能水下地震数据采集系统设计与实现[J].吉林大学学报:工学版,2007,37(1):168-172.Wang Chao,Song Ke-zhu,Tang Jin.High per-formance data acquisition system marine seismic sur-vey[J].Journal of Jilin University(Engineering and Technology Edition),2007,37(1):168-172.
[4]程敬原,宋克柱,杨俊峰.时移地震数据采集和记录系统中的单缆测试系统设计[J].吉林大学学报:工学版,2006,36(2):237-241.Cheng Jing-yuan,Song Ke-zhu,Yang Jun-feng.Sin-gle-cable checking systemfor time-lapse marine seis-mic data acquisition and recording system[J].Jour-nal of Jilin University(Engineering and Technology Edition),2006,36(2):237-241.
[5]伍尚坤,宋克柱,吴义华.高谱纯度低频信号源的设计与实现[J].核电子学与探测技术,2006,26(6):936-938.Wu Shang-kun,Song Ke-zhu,Wu Yi-hua.A high-performance wave-generator based on DAC[J].Nu-chear Electronics&Detection Technology,2006,26(6):936-938.
[6]陈佳,宋克柱,曹平.分布式海洋石油勘探系统主控软件关键算法[J].计算机工程与应用,2006,42(8):230-232.Chen Jia,Song Ke-zhu,Cao Ping.Pivotal algorithms of console software on the distributed offshore oil prospect system[J].Computer Engineering and Ap-plications,2006,42(8),230-232.
[7]Anon.Model for4C/4D-seismic-data acquisition[J].Journal of Petroleum Technology,2000,52(1):32-33.
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