Foremost DR-40 SHD Lower Drive

Sunrise and another day of troubleshooting. Sometimes hydraulic systems don’t behave quite as anticipated. This lower-drive is designed to set casing up to 40 inch diameter, vertically or slant-drilling, to a depth/distance of thousands of metres. Two hydraulic motors drive planetary driven pinions which in turn drive the spindle (540,000 ft-lb). Another two hydraulic motors and pinions control the internal chuck-lock mechanism used to grip the casing. A separate top drive can also be used to simultaneously drill

Done