Well bore cleaning tool
This is a well-bore cleaning tool for cutting away, breaking down and removing undesirable accumulations or deposits of sand and other objectionable matter from a well bore. The tool consists of a number of axially connected tubes or casings, at the lower end of which is a hollow, internally tapered cutting bit which cuts away and breaks down deposits of sand, rock, or other foreign matter when the tool is vertically reciprocated in the well bore. The hollow interior of the tool provides a chamber into which the loosened accumulations may be drawn by the suction of a piston-like pump. A 1-way valve is placed between the drill bit and the hollow chamber. The pump is operated by a weighted plunger moved within the well bore by a cable. This plunger has stems which slide through passages in suction sleeves, whose outer surfaces slide along the inner surface of the hollow chamber. Ports or passages in the stems operate to pass fluid during the lowering and pumping operations. (8 claims)
- Assignee:
- TUL; EDB-81-025634
- Patent Number(s):
- US 3164209
- OSTI ID:
- 7056790
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
ALKANES
CLEANING
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROCARBONS
MAINTENANCE
NATURAL GAS
NATURAL GAS WELLS
OIL WELLS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PARAFFIN
PETROLEUM
REMOVAL
SAND
SURFACE CLEANING
SURFACE FINISHING
WAXES
WELL CASINGS
WELLS