Flow range | 4.7-10 l/s, outer diameter of the drill collar - 89.0 mm
6.3-19 l/s, outer diameter of the drill collar - 120.7 mm 9.5-38 l/s, outer diameter of the drill collar - 165.0 mm 25.2-75.7 l/s, outer diameter of the drill collar - 209.6 mm |
Pressure difference | 6.9 bar at 25.2 l/s |
Data transfer | Positive impulses |
Positive impulses | Lithium battery operating at temperature of up to +150°C or +175°C. Operation time from 175 to 200 hours/set of batteries. |
Operational modes | Sequence and set of transmitted data fully selected by the operator, as well as programming capabilities of the MWD from the surface. Flexible operation software. Possibility to choose resolution capability and update rate - all parameters. |
Maximum error of horizontal offset | 0.8m / 300m or tapered error of ±0.15° maximum |
Accuracy of channel measurement | ±0,1° |
Accuracy of measuring front mark position | ±0,5° |
Accuracy of measuring magnetic inclination | ±0,1° |
Impurity concentration | 40-50 parts per billion, any size |
Measurement range of zenith angle | 0° - 180° |
Measurement accuracy of zenith angle | ±0,1° |
Measurement range of azimuth | 0° - 360° |
Measurement accuracy of azimuth | ±1.0°(Angle>10, Dip<70°) |
Measurement accuracy of
the deviator position (gravitational) | ±1.0°(Angle>10) |
Measurement accuracy of
the deviator position (magnetic) | ±2.25°(Dip<70°) |
Gamma-ray logging sensor
(optional) | Calibrated in API units, range of 0 - 180 API ±5% at 300°F (150°C)±10% at 350°F (175°C) (with standard conversion coefficient in API 1.35 API counts/sec) |
Inclinometer | Triaxial magnetometer, Quartz accelerometers° |
Gamma-ray logging sensor
(optional) | Scintillation detector with photo-electronic multiplier |