A Kelly Hose is a high-pressure, flexible hose used in oilfield drilling operations to connect the standpipe to the swivel joint at the top of a drilling rig. It is designed to handle pressures up to 5,000 psi and allows safe transfer of drilling fluids, petroleum, or other effluents.
Kelly hoses are critical for maintaining continuous drilling operations while enabling the vertical movement of the drill string. The hose is reinforced with two layers of plated steel cables, providing durability and protection against harsh drilling conditions.
Key Features of Kelly Hoses
- Flexible 3 to 5-inch diameter hose
- Two layers of plated steel cables for reinforcement
- Capable of handling 5,000 psi functioning pressure
- Allows free vertical movement of the drill string
- Ensures safe transfer of drilling effluents
How It Works
The kelly hose is attached to the gooseneck on the swivel at the top of the rig. It allows the drill string to be raised or lowered while pumping drilling fluids up through the drill string. This ensures safe handling of petroleum products and continuous operation during drilling.
Applications
- Oilfield drilling rigs
- Drilling fluid transfer
- High-pressure petroleum operations
- Rig effluent handling
A Kelly Hose is a flexible, high-pressure hose connecting the standpipe to the swivel on a drilling rig, allowing safe transfer of drilling fluids.
Kelly hoses are designed to function at pressures up to 5,000 psi.
Two layers of plated steel cables provide durability, prevent kinking, and protect the hose from high-pressure drilling conditions.
It allows vertical movement of the drill string while maintaining a safe and continuous flow of drilling fluids and petroleum products.
It is used on oilfield drilling rigs, for effluent transfer, and in high-pressure petroleum operations.
