海洋地震仪GOBS简介及技术参数

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海洋地震仪GOBS简介
Group Ocean Bottom Seismometer
主要用途
组合式海底地震仪GOBS(Group Ocean Bottom Seismometer)是一种小型化的地震数据采集站,主要利用人工震源探查海底沉积层和深部地质构造。

由于各个节点能够独立进行采集作业,可适应海底起伏剧烈的复杂地形,针对海洋油气资源和滨海区地质调查,实现高密度的节点式布放和高分辨率的三维地震勘探。

Application:
GOBS(Group Ocean Bottom Seismometer)is a miniaturization seismic data acquisition station, mainly use the artificial seismic source to investigate the Seabed sediments and deep geological structures. Since each node can acquire the data independently, adapting to the complex seabed ups and downs, investigating for ocean oil & gas resources and coastal area geological survey, achieving high density node layout and high resolution 3D seismic are available.
主要特点
1、各采集节点可独立采集4分量的地震信号,适应多种海底地形;
2、各采集节点由软性线缆进行连接,便于施工布设;
3、耐压水深最大1500m,可以勘探需要定制,如100m 500m 700m 1000m等;
4、留海工作时长大于30天;
5、工作频带范围达到10s-300HZ;
6、可实现多台采集节点同时数据传输和快速充电;
Main features:
1.Each acquisition node can independently acquire 4 channels seismic signal, adapt
to a variety of submarine terrain;
2.The acquisition node is connected by the soft cable, convenient for the layout
3.The max. operating depth is 1500m, and it can be customized such as 100m 500m
700m 1000m;
4.Continuously working for more than 30 days in the sea;
5.Working frequency range is 10s-300HZ;
6.Multiple acquisition nodes data transmission and fast charging at the same time
are available.
技术参数:
各采集节点由软性线缆进行连接,高密度布放,适用于二维、三维复杂海底地震勘探;
仪器尺寸:φ300mm×150mm;
耐压水深:1500 m(可定制,如G100、G700、G1000、G2000等);
通道数:四通道(3分量速度检波器、1通道水听器);
连续工作时长:30天;
检波器频带:1 ~ 300Hz;
采样率1000,500,250,100 sps;
内置高精度时钟: OCXO, 0.01 PPM@4℃;
自存储容量:32GB(可扩充更大容量SD卡);
仪器状态设置:TCP/IP协议、以太网接口;
地震数据传输:TCP/IP协议、以太网接口;
仪器重量:23kg(耐压水深不同,外壳材质有所差异,故仪器重量略有差异);
可改制为沉浮式GOBS,配浮桶、沉耦架和声学释放器。

GOBS Combined Ocean bottom seismometer
The sampling point is connected with soft cable, high density array, used for 2D/ 3D complicated ocean bottom exploration.
GOBS Size:φ300mm×150mm;
Operating depth(Max):1500 m (could customize, like G100、G700、G1000、G2000)Channels:Four(3 aixs geophone ,1 channel hydrophone);
Working time:1 months;
Geophone frequency:1 ~ 300Hz;
Dynamic range:>120 dB;
Sample rate:1000, 500,250,100 sps;
Inbuilt Built in high precision clock:OCXO, 0.01 PPM@4℃;
Storage:32 GB;
OBS statement setting:TCP/IP protocol, Ethernet interface
Data transmission:TCP/IP protocol, Ethernet interface
GOBS weight:22kg(weight will be a little difference for the material differences);
Could changed to sink-floating GOBS, configuration with float, dead weight and Acoustic releaser .。

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