North Seeking gyro - Common tools description
Desription of typical North Seeking gyro: Seeker (Baker Hughes Inteq), Wellbore surveyor (gyro/data), Finder (SDI), GCT (Schlumberger ), G2 (Sperry-Sun)
Seeker (Baker Hughes Inteq) 1 directional drilling survey tool description
The Seeker from Baker Hughes Inteq is a single axis gyro tool, i.e. the gyro has one sensing axis in the cross-borehole plane. As stated before, it applies gyrocompassing (low inclination) to determine azimuth. For that purpose four measurements at 90° toolface differences are performed. With two pairs of measurements at 180° apart toolface angle, gyro bias . . .