Overview:
- Challenges to MWD in the Arctic include escalating level of solar activity and unmodeled crustal anomalies
- Advances in geomagnetic referencing provide a viable alternative and can meet the challenge with precise real-time wellbore positioning with MWD and using Nikaitchuq experience as blueprint for success in other challenging environments
Geomagnetic Referencing At High Latitudes:
- Smaller horizontal component in the Arctic means increased impact from crustal and drillstring magnetic interference
- Important to cover entire wavelength spectrum:
- Satellite data for long wavelengths, ≥ 250 km
- Local aeromagnetic surveys for shorter wavelength
- Strong emphasis on quality control and validation
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View the entire Presentation:
Improve Geomagnetic Referencing in the Arctic Environment
Benny Poedjono et. al. - Wellbore Surveying at Schlumberger