Kelly hose
mud hose
rotary hose

It is used to conduct drilling fluid from the mud pumps to the kelly hose.

At this time the swivel seized, rotating the blocks, bails, kelly hose and wrapping the drill line.

Kelly hose was installed and well was circulated while the drilling line, blocks, hook, bails, slips, pipe spinner and elevators were all changed out.

Gas Processors Assoicaiton:www.gasprocessors.com Q: Looking for legislation or specifications in Alberta on Pressure Testing on kelly hoses.

Employers must ensure that all rig chiksans, kelly hoses and other overhead circulating equipment have a safety chain or cable attached to an elevator bale to act as a fall arrest for equipment which is suspended 2 meters or more above the rig floor.

The kelly hose is the flexible, high-pressure hose connected from the standpipe to a gooseneck pipe on a swivel above the kelly and allows the free vertical movement of the kelly while facilitating the flow of the drilling fluid down the drill string.