Method and apparatus for jet-fluid abrasive cutting

Details Method and apparatus for jet-fluid abrasive cutting Method and apparatus for jet-fluid abrasive cutting

2008-07-24

2009-06-16

Bagnell, David J (Department: 3676)

Wells

Processes

Perforating, weakening, bending or separating pipe at an...

C166S053000, C166S055700, C175S024000, C175S025000

Reexamination Certificate

active

07546876

ABSTRACT:
A method and apparatus for down hole abrasive jet-fluid cutting, the apparatus includes a jet-fluid nozzle and a high pressure pump capable of delivering a high-pressure abrasive fluid mixture to the jet-fluid nozzle, an abrasive fluid mixing unit capable of maintaining and providing a coherent abrasive fluid mixture, a tube to deliver the high pressure coherent abrasive mixture down hole to the jet-fluid nozzle, a jetting shoe adapted to receive the jet-fluid nozzle and directing abrasive jet-fluid mixture towards a work piece, a jetting shoe controlling unit that manipulates the jetting shoe along a vertical and horizontal axis and a central processing unit having a memory unit capable of storing profile generation data for cutting a predefined shape or window profile in the work piece and coordinating the operation of various subsystems.

REFERENCES:
patent: 5857530 (1999-01-01), Gronseth
patent: 6189629 (2001-02-01), McLeod et al.
patent: 6964303 (2005-11-01), Mazorow et al.

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