Drill bit having replaceable nozzles directing drilling fluid at a predetermined angle
A rotary drill bit is described for drilling a well bore. The bit consists of: a bit body adapted to be detachably secured to a drill string for rotating the bit, and to receive drilling fluid under pressure from the drill string, the bit body having depending legs at its lower end, each leg being spaced from the other legs, and nozzle means for exit of the drilling fluid from the bit body; and roller cutters, one for each leg, each roller cutter comprising a generally conical cutter body rotatably mounted on the respective leg and a plurality of cutting elements on the cutter body engageable with the bottom of the well bore; each of the nozzle means comprising a bore extending up from the underside of the bit body, an elongate nozzle member fitted in the bore, and means for detachably securing the nozzle member in the bore.
- Assignee:
- Reed Rock Bit Co., Houston, TX
- Patent Number(s):
- US 4582149
- OSTI ID:
- 5516871
- Country of Publication:
- United States
- Language:
- English
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Drill bit having angled nozzles for improved bit and well bore cleaning
Drill bit having angled nozzles
Related Subjects
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
DESIGN
DRILL BITS
DRILLING
DRILLING EQUIPMENT
DRILLING FLUIDS
DRILLS
EQUIPMENT
FASTENERS
FLUID FLOW
FLUIDS
INCIDENCE ANGLE
MOTION
NATURAL GAS WELLS
NOZZLES
OIL WELLS
PRESSURE EFFECTS
ROTARY DRILLING
ROTARY DRILLS
ROTATION
WELL DRILLING
WELLS