Overview:
- Azimuth uncertainty reduced at high inclination and E/W directions
- Gross error detection
- Outrun multi-shot data provides definitive surveying information
- In-hole referencing of magnetics
- Field data confirms GWD90™ successful for horizontal applications
Going Beyond 70 deg Inc
- Use of a dual MXY™ sensor array
- 3 orthogonal axes measuring Earth Rate
- New mechanization controlling bias in all 3 axes
- CAP™ system correcting g-sensitive errors in 3 axes
- Significant reduction in azimuth errors related to high inclination and East/West direction
- Very robust quality control
GWD90™ Run History
- Most wells drilled starting from vertical to 78 degrees of inclination
- Several over 90 degrees inclination
- Well profiles varied from due North/South to due East
- Varying latitudes up to 60 degrees
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View the entire Presentation:
Steve Mullin - Gyrodata Inc.