Deployment | Borehole |
---|---|
Log Name | DEV, AZIM |
Measured Property | Deviation angles from the true vertical depth trajectory |
Sensor Type | Accelerometer |
Units | |
SI | ° (degree) |
Oil Metric | ° (degree) |
Oil Field | ° (degree) |
\cos \theta(l) = \frac{dz}{dl}, \quad \tan \phi(l) = \frac{dy^*}{dx^*} |
where
– along-hole measured depth
– is deviation from true vertical depth
– azimuth in tangent plane.