Kelly Hose

When connecting the standpipe to the swivel joint, a kelly hose is a flexible, 3 to 5-inch diameter hose protected with two layers of plated steel cables that can withstand 5,000 psi of functioning pressure.

The kelly hose is appended to the goose-neck on the swivel at the top of the oilfield kelly rig. This hose allows free vertical motion like being lifted or loosened while drilling effluents are pumped up through the drill string. The concurrent lowering of the drill string while controlling the petroleum product release is favorable in sustaining oil drilling activity.

Kelly Hose