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System for acoustic data
collection BOX
The ВОХ system is designated for acoustic
data registration to be used as a seismic-prospecting and seismological
instrument.
Main functional and
engineering designation of the system:
1. Getting seismic data
required for:
- tackling of
regional geotectonic problems;
- geological
zoning in the course of hydrocarbon material search;
- detailed
study of structures for making exploratory wells;
- finding
solutions for engineering-geological and geo ecological tasks.
The depth of investigation
will depend only on the depth and frequency spectrum of the well.
2. Work in any terrain and
climatic conditions including swamps, river basins, lakes and seas with depths
up to 30 m. It allows performance of “seamless” survey in different
environments, coordinate survey work in adjacent regions, for example, on-sea
and on-land and link the surveys to existing wells (work in transit
zones).
3. Performance of
comprehensive 2D and 3D works of any minuteness and configuration in
accordance with geological tasks and terrain conditions.
4. It is a telemetric
system ensuring high mobility and cost effectiveness of site survey.
5. The system software
(mathematical tools) include three programs:
- OMNI is for
optimization of survey planning based on geological tasks, terrain conditions,
hardware and financial resources. Details of the initial parameters to be advised
by a client in the course of programming.
- ВОХ is for survey performance:
installation, correction and removal of reception lines; identification of a
survey routine; drive line shooting; collection of data in real-time mode (if
necessary it is possible to store information in modules or radio relay data
onto the station – from module to module); on-line testing of the received
material quality.
- APEX, VISTA
are for development and fulfilment of numerous sequences (flows) of field
material processing; they include: geometric input, editing of seismic records,
all kinds of filtration, deconvolution, input of static and kinetic
corrections, velocity analysis, stacking, migration, etc.
The system structure
The system consists of the
following major elements:
- Registration station mounted on a ship, car,
or a stationery base.
- A set of self-contained telemetric modules
ВОХ which
constitute the receiving assembly.
Each module consists of a
radio buoy and one or two mini-cables with seismic detectors connected to the
buoy – up to eight channels per module. Both hydrophones and groups of
geophones can be used as seismic detectors including within the limits of one
mini-cable.
Modern equipment, work techniques,
expertise of the personnel allow the Sevmorgeo company to work in different geological
conditions using both on-land and marine seismic devices as well as to
efficiently plan its work and express-processing of field materials, and
besides it allows geodetic correlation of received material.
Collection of seismic data in real-time mode from
on-land and marine installations 
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