SIB-RElectromagnetic wave propagation resistivity tool
Real-Time Formation Evaluation and Geosteering
Certificate of conformity reg.No.4IDY101.RU.C02359 CODE OK 034-2014 (KPES 2008) 28.92.1
Certificate of approval of the type of measuring instruments reg.No.4IDY101.RU.C02359 CODE OK 034-2014 (KPES 2008) 28.92.1
Tool specifications
| Nominal OD | UOM | 4 3/4" | 6 3/4" |
|---|---|---|---|
| Tool architecture | Collar-mounted | Collar-mounted | |
| Maximum OD (antennas and wear bands) | in (mm) | 5.24 (133) | 7.48 (190) |
| Minimum tool length | ft (m) | 10.14 (3.1) | 11.81 (3.6) |
| Tool connections | API | NC-38 | 5 1/2 FH |
| Maximum flow rate | gpm (lps) | 380 (24) | 890 (56) |
| Power source | MWD turbine or battery sub | MWD turbine or battery sub | |
| Maximum operating temperature | °F (°С) | 257(125) | 257(125) |
| Maximum operating pressure | psi (MPa) | 14500 (100) | 14500 (100) |
| Maximum sand content | % | 4%, recommended <1% | 4%, recommended <1% |
| Maximum LCM tolerance | No restrictions on volume | No restrictions on volume | |
| Maximum DLS, rotating / sliding | °/100ft (30m) | 15 / 30 | 10 / 15 |
| Memory capacity | Mb | 1024 (~1000 hrs @ 2s update rate) | 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%.