SIB-RElectromagnetic wave propagation resistivity tool

Real-Time Formation Evaluation and Geosteering

Certificate of conformity reg.№ ROSS RU.31621.04PSHN4.ОS.05.S00964 17.04.2026

Instrument Features SIB-R

  • 12 dual-frequency compensated resistivity measurements for real-time decision making
  • Flexible BHA configurations
  • Optimal design for low cost of ownership
  • Drilling efficiency optimization
  • Seamless BHA integration & upscaling to triple-combo logging suite
  • Phase shift and attenuation resistivity measurements for realtime decision making
  • The tool can be placed anywhere in the BHA because of wetstab electrical connections on both ends
  • Collar-mounted retrievable chassis along with the battery-less design for reduced running costs
  • Near-bit inclination and PWD measurements close to the bit
  • Full compatibility with SLB and Geofit downhole tools, surface systems and software

Basic configuration

Inclination sensor

Annular pressure sensor

Wear band

Transmitter

Receiver

Receiver

Transmitter

Transmitter

Wear band


Applications

  • Effective wireline replacement in various drilling environments
  • Real-time formation evaluation and geosteering
  • High-speed drilling and logging operations

Tool specifications

Nominal OD UOM 4 3/4" 6 3/4" 8 1/4"
Tool architecture Collar-mounted 
Maximum OD (antennas and wear bands) in (mm) 5.24 (133) 7.48 (190) 9.09 (231)
Minimum tool length ft (m) 10.14 (3.1) 11.81 (3.6) 13.12 (4)
Tool connections API NC-38 5 1/2 FH 6 5/8 FH
Maximum flow rate gpm (lps) 380 (24) 890 (56) 1395 (88)
Power source MWD turbine 
Maximum operating temperature °F (°С) 257(125)
Maximum operating pressure psi (MPa) 14500 (100) 
Maximum sand content % 4%, recommended <1% 
Maximum LCM tolerance No restrictions on volume
Maximum DLS, rotating / sliding °/100ft (30m) 15 / 30 10 / 15 7 / 12
Memory capacity Mb 1024 (~1000 hrs @ 2s update rate) 

Measurement specifications

Resistivity Measurement Type Range Accuracy
Phase shift, 1800 kHz 0.2 ... 50 Ω*m
50 ... 2000 Ω*m 		±2 %
±0.5 mS/m
Phase shift, 400 kHz 0.1 ... 10 Ω*m
10 ... 100 Ω*m 		±2 %
±2 mS/m
Attenuation, 1800 kHz 0.2 ... 20 Ω*m
20 ... 50 Ω*m 		±3 %
±2 mS/m
Attenuation, 400 kHz 0.1 ... 3 Ω*m
3 ... 10 Ω*m 		±3 %
±10 mS/m
Resistivity Measurement Type Frequency Antenna Spacing Depth of Investigation Vertical Resolution
Phase shift / Attenuation 1800 kHz 407 mm (16")
560 mm (22")
864 mm (34") 		0.40 m / 0.74 m
0.50 m / 0.91 m
0.66 m / 1.08 m 		0.30 m / 0.99 m
0.31 m / 1.25 m
0.35 m / 1.11 m
Phase shift / Attenuation 400 kHz 407 mm (16")
560 mm (22")
864 mm (34") 		0.48 m / 1.18 m
0.63 m / 1.46 m
0.85 m / 1.65 m 		0.35 m / 1.41 m
0.38 m / 1.76 m
0.44 m / 2.10 m

Depth of Investigation calculations are based on the model with Rt=10 Ω*m and Integrated Geometric Factor of 50%.

Full catalog