EXGEO provides advanced borehole seismic tools and tools for shallow buried arrays for long term or temporary deployments according to the requirements of reliability and budget of the project.
Borehole Tool
ExGeo borehole rugged waterproof tool can withstand pressures of up to 10,000 psi and temperatures up to 200 °C. It can be configured for single and multi-component applications, including 3C and 4C, using single or dual sensors for each component.
Shallow Buried Array
Sigma, REFTEK and iMSR-24 acquires microseismic data to provide the widest aperture and highest sampling. Designed with TI's chip to get the ultra-high resolution ADC with PGA for Seismic and Energy Exploration. While the iMSR-24 is a 24-bit digital data acquisition system. The standard configuration includes an oyo-geospace geophone providing three channels of geophone data. Each channel employs an exceptionally low noise 4th-order Delta-Sigma modulator together with a programmable digital filter. This gives an effective noise-free resolution greater than 23 bits at 250 samples per second.
It is capable of running its own GPS module and saving up to 32 GB of data on a non-volatile flash internal memory. The GPS module generates one pulse per second that is used to time stamp each data reading with a precision of better than 1 us. It also can be equipped with an internal rechargeable battery to avoid any interruption of data acquisition during power outage, which provides a stable platform that may be easily deployed in harsh environments.
- ADC Resolution: 24 bits
- Sample Frequency: 0.25, 0.5, 1, 2 ms
- Noise: <0.25 uv/Hz^0.5
- Synchronous Mode: GPS
- Timer Error: <1 us
- Temperature: <50℃
- Bandwith: 0.1~1000 Hz
- Sensitivity: 4800 v/m/s
- Dynamic Range: 120 dB
- Components: up to 4
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