Near-Bit Drilling Geological & Dynamics Monitor System
The Near-Bit Drilling Geological & Dynamics Monitor System integrates a drilling dynamics monitoring module into the receiver sub, enabling simultaneous acquisition of azimuthal gamma and inclination data alongside measurement and recording of RPM, weight on bit, torque, internal and annular pressure, and vibration. The system provides operators with a quantified assessment of downhole drilling conditions to improve drilling efficiency or prevent tool failures.
Product Specifications
Product Specifications
Features
● Highly integrated design for real-time multi-parameter measurements
● Real-time vibration and stick-slip monitoring at the bit
● Wireless communication between measurement sub and MWD for ease of operation
● Electromagnetic wave transmission ensures operation under various mud conditions
Application
● Shale Reservoir Development (SRD) and Coal Bed Methane (CBM) Drilling
● Horizontal, ERD, and Directional Drilling
● Downhole Drilling Risk Monitoring
Specification
Near-bit Inclination | 0 - 180°, ±0.3° |
Gamma Measurement | 0 - 1,000 API, ±10% |
Memory | 64 Mbit |
Rotation Speed | 30 - 450 rpm |
Vibration | 0 - 40 g, ±1 g |
Weight on Bit | ±300 kN (±67,400 lbs), ±5%F.S |
Torque | ±30 kN·m (±22,100 ft-lbs), ±5%F.S |
Bore Pressure | 120 MPa (17,500 psi), ±1%F.S |
Annular Pressure | 120 MPa (17,500 psi), ±1%F.S |
Max. Temperature | 150°C (302°F) |
Max. Pressure | 120 MPa (17,500 psi) |
Tool OD | Φ172 mm (6.75') |
Battery Life | ≥200h |
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