Throwing chain on a drilling rig

To flip the spinning chain up from a tool joint box so that the chain wraps around the tool joint pin after it is stabbed into the box. The stand or joint of drill pipe is turned or spun by a pull on the spinning chain from the cathead on the drawworks. [pdf]

Drilling rig throwing chain

To flip the spinning chain up from a tool joint box so that the chain wraps around the tool joint pin after it is stabbed into the box. The stand or joint of drill pipe is turned or spun by a pull on the spinning chain from the cathead on the drawworks. [pdf]

Directional drilling rig pricelist

Directional boring costs $10 to $30 per linear foot or $1,000 to $9,000 total on average. Underground directional boring or horizontal directional drilling prices depend on the location and ground conditions. [pdf]