Vibration source of seismic signals SVS-30/150

Vibration source of seismic signals SVS-30/150

The vibration source meets all the requirements of modern seismic prospecting, reliability, safety and has high performance. Designed to excite seismic longitudinal waves with a given amplitude and frequency with a peak force of 300,6 кН (67580 lbs) in the geological environment, by mechanical vibration effects on the surface of the soil during seismic exploration.

Applicable scope of the unit is seismic exploration of oil and gas fields, mainly in the northern regions in off-road conditions, virgin snow and wetlands.

The unit is mounted on a self-propelled snow and swamp chassis with a hydrostatic drive. The chassis has a caterpillar thread on rubber caterpillar track and has a high cross in hard-to-reach places, which allows for field work in a variety of geological and climatic conditions and transitional zones, with an ambient temperature of 233 K (minus 40 ° C) to 313 K (plus 40 ° C) and a relative humidity of not more than 80% at 293 K (20 ° C).

Technical characteristics

Exciter model:

SV-30

Peak force:

300,6 kN (67 580lbs)

Piston area:

145,3 cm² (22,53 sq.in.)

Reaction mass:

5045 kg

Maximum amplitude of reaction mass motion:

110 mm

Extreme frequency range:

1 to 250 Hz

Servo valve type:

Atlas 240H with pilot MOOG 760С928А and servo doctor

Control block type:

GDS-1+ (ООО «GDS»), VE-432 («Sercel»), FORS III, or equivalent

Hydro-pneumatic accumulators of reaction mass:

2 х 5l (1,3 gl) mass collector

Stroke of hydraulic cylinders of lifting and lowering:

100 cm ( 38,5 inches)

Reaction mass weighting method:

Air bellows

Method of vibration dampening for the machine operator:

Air bellows

Hydraulic system:

Closed-type

Hydraulic system pump:

Denison P-14, 229 cm³ (14 inches³)

Max. pump delivery:

7,5 х 10ˉ³ m³/sec (450l/min)

Hydraulic system filters:

3 micron on servo valve and high pressure line, 5 micron on low pressure line

Hydro-pneumatic accumulators:

4 х 10l

Working fluid temperature in the hydraulic system:

 

-rated

323⁺⁵°К (50°⁺⁵°С)

-maximun

397⁺⁵°К (90°⁺⁵°С)

Hydraulic system working fluid:

 

-winter at ambient t° range from -40°С to +10°С

Oil Shell TELLUS S2 V32 (or equivalent)

-summer at ambient t° range from +10°С up

Масло Shell TELLUS S2 V46

Baseplate area:

2,5m² (3,864 inches)

Baseplate weight:

1970kg

 

Transport base

Chassis type

SHSG

Engine

YaMz-7511.10.

Power

400 h.p. capacity at 1900 rpm

Qty of tracks

2

Track width, mm

1100

Tread, mm:

2700

Suspension

oscillating beam type

Qty of supporting wheels

8

Distance between axles of two adjacent wheels, mm:

1400

Tires

air 12,00-20, Model IYa-241

Tire air pressure:

750±25 kPa(7,5±0,25 2 kgf/cm²)

Max. gradability angle

60% (31°)

Max. side movement angle at sidehill

10°

Max.speed, km/h:

At 1st gear

At 2nd gear

 

3

15

Working fluid pressure:

In discharge line of hydrostatic transmission circuit

In return line

 

38 MPa (380 kgf/cm²)

2,8 MPa (28 kgf/cm²)

Source weight with air tires, max, kg

31500

Overall dimensions, mm:

length

width

height (at the level of the engine exhaust pipe)

 

8690

3800

3800

 

Vibration source of seismic signals SVS-30/150

Vibration source of seismic signals SVS-30/150