Kelly hose
Encyclopedia
A Kelly hose is a flexible, steel reinforced, high pressure hose
that connects the standpipe
to the kelly
(or more specifically to the goose-neck on the swivel above the kelly
) and allows free vertical movement of the kelly
while facilitating the flow of drilling fluid
through the system and down the drill string
.
Hose (tubing)
A hose is a hollow tube designed to carry fluids from one location to another. Hoses are also sometimes called pipes , or more generally tubing...
that connects the standpipe
Rig standpipe
A rig standpipe is a solid metal pipe attached to the side of a drilling rig's derrick that is a part of its drilling mud system. It is used to conduct drilling fluid from the mud pumps to the kelly hose. Bull plugs, pressure transducers and valves are found on the rig standpipe....
to the kelly
Kelly drive
A kelly drive refers to a type of well drilling device on an oil drilling rig that employs a section of pipe with a polygonal or splined outer surface, which passes through the matching polygonal or splined kelly bushing and rotary table...
(or more specifically to the goose-neck on the swivel above the kelly
Kelly drive
A kelly drive refers to a type of well drilling device on an oil drilling rig that employs a section of pipe with a polygonal or splined outer surface, which passes through the matching polygonal or splined kelly bushing and rotary table...
) and allows free vertical movement of the kelly
Kelly drive
A kelly drive refers to a type of well drilling device on an oil drilling rig that employs a section of pipe with a polygonal or splined outer surface, which passes through the matching polygonal or splined kelly bushing and rotary table...
while facilitating the flow of drilling fluid
Drilling fluid
In geotechnical engineering, drilling fluid is a fluid used to aid the drilling of boreholes into the earth. Often used while drilling oil and natural gas wells and on exploration drilling rigs, drilling fluids are also used for much simpler boreholes, such as water wells. Liquid drilling fluid...
through the system and down the drill string
Drill string
A drill string on a drilling rig is a column, or string, of drill pipe that transmits drilling fluid and torque to the drill bit. The term is loosely applied as the assembled collection of the drill pipe, drill collars, tools and drill bit...
.