Short Period
The S-200 seismic sensor
The S-200 seismic sensor
Overview
This type of sensor has been designed for microseismic events recording during hydraulic fracturing reservoir experiments. The sensor body has been designed to house double geophone strings at each axis. The orientation follows the three-axis principle. This sensor has an external diameter of 50mm, allowing it to be installed into small and shallow boreholes, hence reducing the installation cost. Using a single geophone element per axis, the electronic noise floor becomes a limiting factor for this type of acquisition. Increasing the gain and minimizing the sensor’s noise floor all us to record even smaller events.
+ Features
- Three-axis, 4.5-240Hz seismic sensor
- High Sensitivity 184 V/m/sec.
- Velocity signal output.
- Minimum recording signal 2.6nm/sec.
- Damping 0.57
- Borehole Type, up to 100m (Shallow Borehole).
- Only 50mm diameter
- Elastic packer mounting.
- Ideal for Hydraulic Fracturing Recording (Tested)
- Operating temperature -40 to +200oC
- Matching with GEOThree & GEOSix digitizers / recorders
- Wideband 1sec / 1500V/m/s available
The S-400 seismic sensor (hydraulic fracturing sensor)
Overview
This type of seismometer has been designed for microseismic events recording during hydraulic fracturing reservoir experiments. It uses quad geophone strings per axis to maximize sensitivity and minimize noise levels, ideally when paired with our GEOThree or GEOSix digitizer/recorder.
+ Features
- 3-axis, 4.5-240Hz seismic sensor
- High Sensitivity 368 V/m/sec.
- Velocity signal output.
- Minimum recording signal 1.3nm/sec.
- Damping 0.57
- Borehole Type, up to 100m (Shallow Borehole).
- Only 50mm diameter
- Elastic packer mounting.
- Ideal for Hydraulic Fracturing Recording (Tested)
- Operating temperature -40 to +200oC
- Matching with GEOThree & GEOSix digitizers / recorders
- Optional 1Hz / 3000V/m/s available