NBM-19A Near Bit Inclination Module
The Near Bit Orientation Module is the latest in a range of Azimuth sensors specifically aimed at advancing the technology of downhole directional measurements for the MWD market.
This sensor provides accurate and repeatable Inclination measurements using the latest in proprietary Azimuth MEMS Accelerometer technology. Packaged robustly in a small footprint (0.75” x 6.0” nom.), the sensor is designed to withstand the rigours of Near Bit shock and vibration.
The Near Bit Module is qualified to 150DegC (302F), and tested under the same rigorous conditions expected of all Azimuth sensors. Available in both ‘Static Inc’ and ‘Continuous Inc’ forms, the module provides accurate Inclination measurements close to the bit, in a form which can be easily accommodated in annular type subs.
MEMS Accelerometers
Ultra-small Form
Reduced Capital Cost
Designed for Near Bit
- Ultra-small form
- Continuous INC option
- Low power consumption
- High-shock and vibe specification
- Robust MEMS Accelerometers
- Accurate, repeatable Inclination measurements
- Calculated INC output
- Serial Communication
- Programmable filters
- Full 3-Axis Accelerometers
- 24-Bit Resolution
- Constant data ‘Streaming’ option
- Increased robustness near bit
- Reduced cost
- Reduced ‘downtime’
- Precision measurements close to bit
- Ease of implementation (form)
- Near Bit Systems
- Rotary Steerable Systems
- Instrumented Motor Implementations
| Value | Units | Comments | |||
|---|---|---|---|---|---|
| Inclination Accuracy | 125ºC | +/-0.15º | Deg. | ||
| 150ºC | +/-0.2º | Deg. | |||
| Inclination Repeatability | +/-0.05 | Deg. | |||
| TF/Rotation at >5° Inc - Accuracy | +/-0.5 | Deg. | |||
| TF/Rotation at >5° Inc - Repeatability | +/-0.05 | Deg. | |||
| Continuous INC | TBA | Deg. |
| Value | Units | Comments | |||
|---|---|---|---|---|---|
| Operating Voltage | +12 to +40 | Volts | |||
| Power Consumption | 0.21 | Watts | Nominal | ||
| ADC Resolution | 24 | Bit | Fully parrallel 3-Axis | ||
| Interface | Serial TTL | 3.3V or 5.0V Option | |||
| Baud Rate | 9600 - 153600 | Baud | |||
| Operating Modes | Master-Slave, Express Survey or Streaming | ||||
| Output | INC, Temp, Raw Fields, Gt | ||||
| Connector | 7-Pin Circular MDM |
| Value | Units | Comments | |||
|---|---|---|---|---|---|
| Length | 6.05 (153.67) | Inches (mm) | |||
| Diameter | 0.75 (19.05) | Inches (mm) | |||
| Weight | 0.18 (0.08) | lbs (Kg) |
| Value | Units | Comments | |||
|---|---|---|---|---|---|
| Operating Temperature | -25 to 150 | °C | |||
| Survival Temperature | -40 to 175 | °C | |||
| Vibration | 30 | g pk | 50 – 1000Hz | ||
| 20 | g rms | 50 – 1000Hz |
We provide a responsive repair, calibration and product support service. Our highly experienced and knowledgeable personnel are available to troubleshoot or repair equipment, and provide general product technical assistance.
If you need effective sensor support for your business contact
support@azimuthmwd.com for more information.