Boring or penetrating the earth – Miscellaneous
Patent
1991-11-08
1993-01-26
Bui, Thuy M.
Boring or penetrating the earth
Miscellaneous
175 67, E21B 1000
Patent
active
051815788
ABSTRACT:
A wellbore jetting tool has a novel packer assembly which enables the tool to be raised, lowered and rotated while operating, a nozzle which automatically raises to extend radially from the tool, and a flow system for returning slurry in an inner tube of cross section. The packer assembly is hydraulically actuated, and traps fluid to provide lubrication, which enables raising, lowering and rotation during operation while substantially maintaining the necessary sealing. The nozzle is raised by a torque generated by vanes disposed within the nozzle head reacting to fluid flow, and also by thrust from the cutting jet. The nozzle discharges this jet at an angle, thus biasing the nozzle appropriately. A breakaway feature allows abandonment of the nozzle if it jams when it is extended, ensuring that the pipestring may always be retrieved. The return of slurry through its own conduit reduces chances of a particle lodging in the slurry return line.
REFERENCES:
patent: 3030086 (1962-04-01), Donaldson et al.
patent: 3142339 (1964-07-01), Brown et al.
patent: 4027407 (1977-06-01), Kiss
patent: 4077481 (1978-03-01), Bunnelle
patent: 4140346 (1979-02-01), Barthel
patent: 4534427 (1985-08-01), Wang et al.
patent: 4919204 (1990-04-01), Baker et al.
Bui Thuy M.
Litman Richard C.
LandOfFree
Wellbore mineral jetting tool does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wellbore mineral jetting tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wellbore mineral jetting tool will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1408157