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Patent Searching and Data


Title:
NOZZLE FOR JET DRILLING AND ASSOCIATED METHOD
Document Type and Number:
WIPO Patent Application WO2003087522
Kind Code:
A3
Abstract:
A jet nozzle (60) is provided for drilling holes through the earth. The nozzle (60) may include orifices (68) for discharging fluid to drive the nozzle forward and includes a disk (70) or other device having orifices (80) to produce a swirling motion to fluid in the body of the nozzle. Swirling fluid is discharged from a front orifice (74) and an extension (76) is placed forward of the front orifice to confine the swirling fluid in a radial direction.

Inventors:
BUCKMAN WILLIAM G SR (US)
DOTSON THOMAS L (US)
MCDANIELS MICHAEL D (US)
BELL WENDELL S (US)
Application Number:
PCT/US2003/010813
Publication Date:
July 15, 2004
Filing Date:
April 09, 2003
Export Citation:
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Assignee:
BUCKMAN JET DRILLING INC (US)
BUCKMAN WILLIAM G SR (US)
DOTSON THOMAS L (US)
MCDANIELS MICHAEL D (US)
BELL WENDELL S (US)
International Classes:
E21B7/08; E21B7/18; (IPC1-7): E21B7/18; E21B7/08
Foreign References:
US4787465A1988-11-29
US5853056A1998-12-29
US6263984B12001-07-24
US5862871A1999-01-26
Other References:
See also references of EP 1499789A4
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