Equipment & Software for Geophysical Surveys: Design, Manufacture, Support, Supply

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Geophone array GStreamer

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$2,100
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Main features:
  • Remote spring snapping
  • Lowering the cable without load
  • Compatibility with linear seismic recording systems

The borehole seismic array with three-component clamping geophone modules GStreamer is designed for multiwave crosshole seismic testing and VSP. The number of modules on the cable can vary from 1 to 8. The interval between modules is determined by the customer.

Three normally oriented geophones with a natural frequency of 12.5 Hz are deployed in each module. The module clamping is achieved by a semi-active spring system with the possibility of remote snapping in the well. The load for the lowering the cable into borehole is not required.

The use of array with clamping modules along with borehole source of SH- waves SHock and Jack energy source allows multiwave observations with registration of SH- and P- waves at distances between wells up to 30 m.

The geophone array can be supplied on a reel with slip ring, which allows to leave the equipment plugged into it while winding and unwinding the cable.

Example of field data for VSP on P- waves, obtained with usage of GStreamer geophone array:
The vertical (Z-) component. The distance between the borehole and the source (sledgehammer) is 5 m. The trace spacing is 1 m, the depth range: 5–124 m.
Example of field data for VSP on P- waves, obtained with usage of GStreamer geophone array Example of field data for VSP on P- waves, obtained with usage of GStreamer geophone array
Example of field data for VSP on S- waves, obtained with usage of GStreamer geophone array:
Summary seismogram of oriented horizontal component after subtraction of “right” and “left” blows. The distance between the borehole and the source (sledgehammer, horizontal blows) is 0.6 m. The trace spacing is 1 m, the depth range: 1–120 m.
Example of field data for VSP on S- waves, obtained with usage of GStreamer geophone array
Example of field data for VSP on SH- waves, obtained with usage of GStreamer geophone array:
The distance between the borehole and the source (sledgehammer, horizontal blows) is 0.6 m. The trace spacing is 1 m, the depth range: 1–120 m.
Example of field data for VSP on SH- waves, obtained with usage of GStreamer geophone array

Number of modules in array 1 - 8 pc
Number of channels in module 3 pc
Compensation coupled geophones yes
Natural frequency of geophones 12.5 Hz
Maximum operating pressure 15 atm.
Interval between modules in array 1 - 10 m
Maximum diameter of module 60 mm
Borehole diameter range 70 - 150 mm
Clamping force range 1:7 - 1:11
Remote snapping of springs yes
Operation without plummet in the well yes
Compatible with linear seismic stations yes

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on request
Item ID: radexpro__Start

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Price:

€2,800
Item ID: zondst2d

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Price:

€2,600
Item ID: zondst3d

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