Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature
Patent
1997-05-02
2000-12-05
Dang, Hoang
Wells
Means for perforating, weakening, bending or separating pipe...
With disparate below ground feature
166 50, 166 551, 166222, E21B 2900, E21B 2906
Patent
active
061553433
ABSTRACT:
The present invention provides a downhole cutting tool for cutting materials at a worksite in a wellbore. The cutting tool includes a cutting end that is adapted to discharge a high pressure fluid therefrom. A power unit in the tool includes a plurality of serially arranged pressure stages, wherein each such stage increases the fluid pressure above its preceding stage until the desired high pressure has been obtained. The high pressure fluid is discharged through the cutting end to effect cutting of a material. A pulsar in the tool is provided to pulse the fluid before it is discharged through the nozzle, which enables the use of lower pressure compared to the pressure required without pulsation of the fluid. A control unit controls the position and orientation of the cutting end relative to the material and may be programmed to cut the material according a predetermined pattern provided to the control unit. An imaging device may be included in the downhole cutting tool to obtain images of the worksite prior to and after the cutting operations.
REFERENCES:
patent: 4978260 (1990-12-01), Lynde et al.
patent: 5381631 (1995-01-01), Raghavan et al.
patent: 5445220 (1995-08-01), Gurevich et al.
patent: 5499678 (1996-03-01), Surjaatmadja et al.
patent: 5509480 (1996-04-01), Terrel et al.
patent: 5715891 (1998-02-01), Graham
patent: 5730221 (1998-03-01), Longbottom et al.
patent: 5791417 (1998-08-01), Haugen et al.
patent: 5924489 (1999-07-01), Hatcher
Lynde Gerald D.
Nazzal Gregory R.
Baker Hughes Incorporated
Dang Hoang
LandOfFree
System for cutting materials in wellbores does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for cutting materials in wellbores, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for cutting materials in wellbores will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-952417