BSR PROBE FOR SMALL WELLS

(设备/材料)

型号编号: BSR

状态: New

位置或存放国家: Russia

服务工程支持: Yes

保证: No

价钱: 要求价格

描述:

Standalone 4-component bottom-based recorder

概观:

Digital module:
- BSR probe (Borehole Seismic Receiver Array)
- 24-bit ADC x 4-channel in each "shuttle"
- The ultra-low noise ADC allows recording low-amplitude microseismic events, 3D-VSP, seismic interwell transmission, etc.
- Probe with an outer diameter of 1.6 inches (<41 mm) for small wells
- Mutually perpendicular 3C sensors
- High Performance OMNI-2400 Geophones
- The turned stainless steel case minimizes resonance for recording with high resolution and frequency
- Separate modules are interconnected by an armored cable or rigid connecting rods with stranded conductors
- Flexible or rigid connectors can expand to increase module spacing
- Maximum distance between modules - 100 meters
- Maximum temperature - 150 oC
- The maximum pressure is 20,000 psi. inch
- Ability to place up to 480 3-component modules in the well
- Placement in vertical, deviated and horizontal wells
- The design of the housing may vary depending on the specific application.

Main technical specifications:

Parameter

Value

Outside diameter

4.064 cm

Length

40.64 cm

Projectile weight

2.27 kg

Anchor device

Mechanical in each module

Casing centering

Cemented

Anchor to Weight Ratio

7: 1 (passive spring)

Anchor Range

Adapters of various sizes on request

Contact points

5 points, including the axis opposite the clamp

Earthquakes

3-C with OMNI-2400 geophones arranged mutually perpendicular

3-C with OMNI-2400 geophones

Connection options

Rigid pipe (stainless steel)

Flexible armored cable

Standard lengths

3, 6, 9 m (option - pipe)

9, 12, 15, 20 m (option - cable)

According to customer requirements, lengths up to 100 m

Maximum temperature

150 s

Maximum pressure

20,000 psi

Specifications 24-bit ADC x 4 channels

Sampling steps

1/4, 1/2, 1, 2, and 4 ms

Pre-amplification

0 dB

8 dB

19 dB

31 dB

Equivalent input noise @ 2 ms (RMS)

1.830 uV

0.774 uV

0,304 mkv

0.202 uV

Maximum input signal (RMS)

1,590 V

0.635 V

0.187 V

0.045 V

Gain accuracy

<1%

frequency range

from 3 to 1600 Hz

Smoothing filter

80% Nyquist

Instant dynamic range

119 dB

Channel interference

> 90 dB

THD

0.0018%

System Timing Accuracy

Better 1 PPM

公司简介

LLC "Geospace Technologies Eurasia"

地点: Russia / Ufa

主要产品/服务: Production and sale of geophysical equipment

成立年: 1990