North Seeking Gyro Survey Tool vs. Reference Gyro Tool vs ...
· When it comes to downhole survey tools, a gyro tool will always be the most accurate. Now, there are many types of downhole gyro survey tools, but it is widely accepted that north seeking, solidstate tools are the most accurate system s in the market.. The GyroMaster ™ leads the pack thanks to its unique truly continuous mode, which collects data points at every c entimeter along the ...