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US 8,298,428 B2Granted
Cleaning magnet device for cleaning drilling fluid
AssigneeInnovar Engineering AS
InventorKarluf Hagen
Life of this patent
Estimating the term…
Abstract
A cleaning magnet device (1a-1c) for cleaning drilling fluid, the cleaning magnet (1a-1c) being disposed in a liquid flow, and the cleaning magnet (1a-1c) being provided with a removable material (6) which is arranged to prevent magnetic bodies from accumulating directly on the cleaning magnet (1a-1c).
Claims10
A cleaning apparatus for removing magnetic bodies from a liquid flow of drilling fluid, said apparatus comprising:
- a fluid channel for containing the liquid flow of drilling fluid;
- and
- at least one cleaning magnet attached to the fluid channel for engaging the liquid flow, and for attracting magnetic bodies in the liquid flow when flowing through the fluid channel;
- wherein said cleaning magnet projects upwards in the fluid channel and has a free upper end portion;
- wherein the cleaning magnet is provided with a removable material forming a closed stocking surrounding the magnet and being open at a lower end portion thereof, thereby allowing for easy mounting of the stocking onto the magnet, thereby also allowing for easy removal of the stocking from the magnet upon accumulation of magnetic bodies thereon, said open and lower end portion is provided with a bail projecting above the cleaning magnet;
- and
- wherein said open and lower end portion of the removable stocking is surrounded, at least partly, by a weight mass for holding the stocking in place in the fluid channel and in said liquid flow when operational.
4 more elements
A method of removing magnetic bodies from a liquid flow of drilling fluid, said method comprising:
- attaching at least one cleaning magnet to a fluid channel;
- arranging said cleaning magnet to project upwards in the fluid channel and to have a free upper end portion;
- providing the cleaning magnet with a removable material forming a closed stocking surrounding the magnet and being open at a lower end portion thereof;
- providing the open and lower end portion of the removable stocking with a weight mass surrounding, at least partly, said lower end portion, thereby weighing down the stocking and, hence, holding the stocking in place when operational;
- passing said liquid flow of drilling fluid through the fluid channel so as to engage said cleaning magnet in the fluid channel, thereby allowing the cleaning magnet to attract magnetic bodies in the liquid flow, thereby also allowing the magnetic bodies to accumulate on the removable stocking surrounding the cleaning magnet;
- and
- removing the stocking from the cleaning magnet, thereby also removing magnetic bodies accumulated on the stocking.
4 more elements
Dependencies are inferred from the claim text.