Wells – Processes – Parallel string or multiple completion well
Reexamination Certificate
2006-05-23
2006-05-23
Bagnell, David (Department: 3672)
Wells
Processes
Parallel string or multiple completion well
C166S372000, C166S106000, C166S105000
Reexamination Certificate
active
07048057
ABSTRACT:
A protection system for an artificial lift device including but not limited to electrical submersible pump (ESP) and an electrical submersible progressing cavity pup (ESPCP). The artificial lift device is suspended on a tubing string into a wellbore where the artificial lift device contacts well fluids. The artificial lift device is provided with a barrier such as an intake barrier or output barrier that deters an ingress of well fluids into the artificial lift device. As a result, the artificial lift device may remain idle and submerged within well fluids for an extended period of time without experiencing degradation of the artificial lift device internals. The intake barrier may include a plug, burst disk, dissolvable material, a selectively openable barrier such as a sleeve or a spring biased member or other member that is capable of providing a suitable barrier. The barrier may be removed once the artificial lift device is ready for operation. The artificial lift device may be filled with a protective fluid. An optional pressure sensor may be provided that is in communication with the interior of the backup unit for communicating with a compressor that may be activated to maintain a positive pressure within the artificial lift device to prevent well fluids from entering the unit. The protection system of the invention is desirable for protecting an idle artificial lift device, including when the artificial lift device is a backup unit in a multi-artificial lift device deployment.
REFERENCES:
patent: 2674194 (1954-04-01), Arutunoff
patent: 2783400 (1957-02-01), Arutunoff
patent: 3318386 (1967-05-01), Garrett et al.
patent: 3741298 (1973-06-01), Canton
patent: 4934458 (1990-06-01), Warburton et al.
patent: 5099920 (1992-03-01), Warburton et al.
patent: 5404943 (1995-04-01), Strawn
patent: 5975209 (1999-11-01), McCorry
patent: 6046521 (2000-04-01), Heinig
patent: 6089322 (2000-07-01), Kelley et al.
patent: 6092599 (2000-07-01), Berry et al.
patent: 6119780 (2000-09-01), Christmas
patent: 6201327 (2001-03-01), Rivas
patent: 6250390 (2001-06-01), Narvaez et al.
patent: 6497278 (2002-12-01), Norris
patent: 6508308 (2003-01-01), Shaw
patent: 6595295 (2003-07-01), Berry et al.
patent: 0 909 872 (1999-04-01), None
Bearden John L.
Rider Jerald R.
Bagnell David
Baker Hughes Incorporated
Fellers Snider Blankenship Bailey & Tippens, P.C.
Smith Matthew J.
LandOfFree
Protection scheme and method for deployment of artificial... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Protection scheme and method for deployment of artificial..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Protection scheme and method for deployment of artificial... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3558342