Outline
- Introduction
- Acquisition Platform
- Methodology
- Results and Discussion
Introduction
- Verification of Existing Legacy Well Locations
- Major study compared over 10,000 well locations from commercial vendor with surveys GPS locations
- 95% confidence is 200 feet
- Recommendaton: Assume 200 ft uncertainty for well locations that have not been verified
- Identification of Unreported Wells for Collision Avoidance
- Lack of historical reporting of well locations
- Incomplete well database- state and/or commercial vendors
- Results in drilling hazard
Acquisition Platform
- Specifications
- QuSpin Total Field Magnetometer
- High Sensitivity rubidium vapor
- Reading at 50 Hz and up to 400 Hz (3 readings per meter at 50 Hz)
- DJI Matrice 600 Pro
- Flight speed of 15 m/s
- Flight time around 20 minutes on one set of batteries
- Carbon Fiber Dragon Housing
- Built in house at MagVAR
- QuSpin Total Field Magnetometer
Methodology
- Survey Design Flight Specifications
- Drone altitude of 35 meters AGL
- Sensor altitude of 30 meters AGL
- Main Lines flown North-South at 15 meter spacing
- Tie Lines flown West-East at 75 meter spacing
...
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Drone Magnetic Site Surveys To Verify Wellhead Locations
David M. Velozzi