ROBERTSON GEOPHYSICAL LOGGING EQUIPMENTS
- Functions: For geophisical logging to serve the basic geological investigation of minerals, mineral exploration and assessment, hydrogeology, engineering geology, geological catastrophe..
- Manufactured by: ROBERTSON – Uk
- Year of production: 2014
- Webiste: https://www.robertson-geo.com
- SPECIFICATIONSMicrologger
Micrologger
Logging Supports Robertson Geo and many third-party probes
USB high-speed link to PC Compatible with most winches/cables
Real-time data display and printing Supports WindowsTM printers
Data output in LAS and Robertson Geo formats
Modular construction for easy field maintenance
Weigth: 3,05 Kg
Battery: 12 V DC
Temperature: 0 ÷ 50oC
Winch
Capacity: 2030m (6658’) 3/16” 4-core cable 1030m (3378’) 1/4” coaxial cable
Speed: 0 – 30m/min (0 – 99ft/min)
Motor: 2hp (1.5kW) at 110/220VAC
Size: 605(w) x 1060(l) x 735(h) mm
Weight: 142kg excluding cable
Sonde/Prober
* Sidewall Density and Sidewall Density/Guard Probe
Measurements
Bulk density
High-resolution density (HRD), Bed-resolution density (BRD)
Natural gamma
Caliper
Guard resistivity,
Specifications
Diameter: 50mm
Weight: 20kg
Temperature: 0-70⁰C .
Max. pressure: 20MPa
Density range : 1.1 to 2.95g/cc
Caliper range: 50mm to 300mm
Resistivity range: 1 – 2,000 ohm
* Verticality Probe (I002141, SN 9530)
Measurements
Borehole inclination
Borehole direction
Borehole drift
True vertical depth
Natural gamma
Specifications
Diameter: 42mm
Weight: 7kg
Temperature: 0-70⁰
Max. pressure: 20MPa
Inclination range: Horizontal +/- 90°
Azimuth range: 0 to 360°
* Temperature/Conductivity Probe (I018742)
LOG APPLICATIONS
- Monitoring water flow
- Temperature compensation of other logs
- Calculation of borehole fluid density
PHYSICAL SPECIFICATIONS
- Length 1.48 metres
- Diameter 38mm
- Pressure Rating 3000PSI
- Temperature Rating 0–70°C
- Power Supply 60–100V DC, 100mA
- Pressure 0-3000PSI
- Temperature 0-70°C
*Neutron Probe ( I002029)
Measurements
Compensated porosity (Dual-neutron tool only)
Natural gamma
Specifications
Dual Neutron Single Neutron
Diameter: 60mm 38mm
Length of sonde: 1.94m 2.08m
Weight: 18.8kg 8kg
Temperature: 0-70⁰C (extended ranges available)
Max. pressure: 20MPa
Range: 0 to 60% apparent sandstone porosity
* High Resolution Acoustic Televiewer (I002184)
Measurements
The HRAT provides a continuous
high-resolution oriented ultrasound
image of the borehole wall.
Specifications
Diameter: 42mm
Length: 1.62m
Transducer type: 1.5MHz piezo-composite
Rotation rate: 5 – 20rev/s
Sample rate: up to 360/rev
* Full-waveform Sonic Probe (I002128)
Measurements
Formation velocity (slowness)
Shear (S) velocity (where shear wave exists)
Full waveform
Time of first arrival (delta-t)
Amplitude of first arrival (CBL)
Integrated transit time.
Operating Conditions Borehole type:
Sonic: open-hole, water-filled
CBL: cased-hole, water-filled
Centralisation: required
Specifications
Diameter: 60mm
Weight: 24kg
Temperature: 0-70⁰C
Max. pressure: 20MPa
- Some projects, used this equipment by the Geophysical Division:
– Government Project “Investigation, overall assessment of coal resources in the mainland, Red River basin”;
– Project: “Geological mapping and mineral investigation at scale 1/50,000 of Kon PLong map sheets group”.
– Component projects: Mineral geological mapping at the scale of 1: 50,000 of Con Cuong 1 map sheets group; Investigation and assessing gold and minerals associated in the southwestern part of the Red River fault (except Nghe An province); Investigation and evaluating tin – wolfram ores and associated minerals in the southwestern part of the Red River fault; Investigation and assessing copper, nickel and associated minerals in the Northwest region under the Project “General investigation of minerals and completing geological maps at scale 1:50,000 in the Northwest area for planning and sustainable development socio-economic”.
And many other works.
Source: Geophysical Division./.
