Core Function: Encodes downhole MWD/LWD data (inclination/azimuth/gamma/temperature, etc.) into mud pressure pulse signals for real-time transmission to surface systems.
1. High-Reliability Data Transmission
Adaptive Encoding Technology:
Dual-mode FSK (Frequency Shift Keying) and PSK (Phase Shift Keying) encoding automatically optimizes signal frequency (3-12 bit/s) based on mud density to prevent attenuation.
Transmission depth >8,000 meters (Field case: 8,500m ultra-deep well in Tarim Basin).
Anti-Interference Design:
Dual-redundant valve structure (primary + backup) maintains signal integrity at >12% sand content or gas invasion.
Vibration compensation algorithm eliminates pulse distortion from severe drillstring vibration (error rate <0.1%).
2. Extreme Condition Adaptability
Parameter | Geolink Performance | Industry Standard |
Operating Temperature | -20°C ~ 175°C | Typical <150°C |
Pressure Rating | 207 MPa (30,000 psi) | Generally <172 MPa |
Mud Compatibility | OB/SB/WBM Full Adaptation | Most Compatible w/1-2 Types |
3. Drilling Efficiency Enhancement
Real-Time Trajectory Control:
Transmission delay <15 seconds, ensuring TVD error within ±0.3m in horizontal wells (e.g., shale "sweet spot" drilling).
Preventing Unplanned Downtime:
MTBF >300 hours, reducing trips due to tool failure (saves ~$180k per trip).
4. Geosteering Integration
Azimuthal Gamma Synergy:
Simultaneously transmits formation GR and azimuth data for real-time trajectory adjustment (boosts reservoir contact by 25%+).
Risk Early Warning:
Detects abnormal downhole vibrations/temperature spikes to warn of stuck pipe or wellbore instability risks.
Industry Applications
Shale Oil/Gas Wells: Longmaxi Formation in Sichuan Basin (>2,000m lateral)
Offshore ERD Wells: Yinggehai Project, South China Sea (WVR >3.0)
Sour Gas Fields: Sulfur-resistant alloy valves for Middle East Khuff Formation (H₂S >20%)
Breakthrough Technology: Geolink's Dual-Frequency Redundant Transmission (SPE-205432) achieved 99.8% data success rate in Iraq's Majnoon Field - 12% higher than imported equipment.
