Downhole fluid supercharger
This patent describes a tool positioned intermediate a section of drill string and a drill bit, for assisting in downhole drilling, the tool comprising: a. a tool body having a longitudinal fluid flow bore substantially therethrough for providing fluid to the drill bit; b. means contained within the tool body for rotating a portion of the tool body to a first position interrupting fluid flow to the drill bit; c. means positioned substantially exterior to the tool body in fluid communication with the fluid flow bore for allowing fluid flow to be jetted and diffused through the wall of the tool body when the portion of the tool body is in the first position; and d. means contained within the tool body for further rotating the portion of the tool body to a second position resuming the fluid flow to the drill bit and interrupting the fluid flow to the wall of the tool body.
- Assignee:
- NOV; EDB-87-037182; NOV-87-042435
- Patent Number(s):
- US 4633958
- OSTI ID:
- 6909081
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
42 ENGINEERING
420206 -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
COMPRESSORS
DIFFUSION
DRILL BITS
DRILL PIPES
DRILLING
DRILLING EQUIPMENT
EQUIPMENT
FLUID FLOW
MOTION
OIL WELLS
PIPES
POSITIONING
ROTATION
SUPERCHARGERS
WALLS
WELL DRILLING
WELLS