Wells – Processes – Placing fluid into the formation
Reexamination Certificate
2007-05-22
2007-05-22
Feely, Michael J. (Department: 1712)
Wells
Processes
Placing fluid into the formation
C166S302000, C166S901000, C206S303000, C206S524100, C507S203000, C507S235000, C507S237000, C507S239000, C507S240000, C507S242000, C507S261000, C507S265000, C507S266000, C507S267000, C507S269000
Reexamination Certificate
active
10695916
ABSTRACT:
A packer fluid is provided for use with a wellbore fluid in an annulus or casing bore, having an aqueous portion which contains additives for preventing corrosion, microbiological activity, salt and scale deposition, and an environmentally-acceptable capping fluid which resides at a top of the wellbore to act as freeze protection and as thermal insulation in a the frost penetration layer. The additives in the packer fluid are particularly selected to exist in the aqueous additive fluid and in the wellbore fluid and to be substantially immiscible with the capping fluid and thereby prevent significant migration of the additives into the capping fluid which would compromise its environmental acceptability.
REFERENCES:
patent: 3728277 (1973-04-01), Foley
patent: 4046197 (1977-09-01), Gruesbeck, Jr. et al.
patent: 4258791 (1981-03-01), Brandt et al.
patent: 4528104 (1985-07-01), House et al.
patent: 4738897 (1988-04-01), McDougall et al.
patent: 5607901 (1997-03-01), Toups, Jr. et al.
patent: 5807810 (1998-09-01), Blezard et al.
patent: 5837655 (1998-11-01), Halliday et al.
patent: 6017854 (2000-01-01), Van Slyke
patent: 6054415 (2000-04-01), Gee et al.
patent: 6080704 (2000-06-01), Halliday et al.
patent: 6096700 (2000-08-01), Weir et al.
patent: 6100221 (2000-08-01), Poelker et al.
patent: 6234183 (2001-05-01), Chan et al.
Skibinski Dan
Smith Clayton
Feely Michael J.
Goodwin Sean W.
Innovative Chemical Technologies Canada Ltd.
Thompson Linda M.
LandOfFree
Packer fluid does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Packer fluid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Packer fluid will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3752296