Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Reexamination Certificate
2011-03-29
2011-03-29
Kugel, Timothy J. (Department: 1765)
Earth boring, well treating, and oil field chemistry
Earth boring
Contains organic component
C507S239000, C507S240000, C507S248000
Reexamination Certificate
active
07915202
ABSTRACT:
A clay stabilizer which is capable of inhibiting swelling in a wide variety of clay types and is also capable of restoring permeability in formations which have previously been damaged by clay swelling. Amine salts of differing molecular weights configurations and ionic strength are combined to provide transport into micropores, mesopores and macropores in the formation and to effect cationic change therein. A poly quaternary amine having a high to very high charge density is added along with lower molecular weight amine salts to substantially permanently exchange cations with the clay in the formation.
REFERENCES:
patent: 3710863 (1973-01-01), Webster et al.
patent: 5342530 (1994-08-01), Aften et al.
patent: 5771971 (1998-06-01), Horton et al.
patent: 5887653 (1999-03-01), Bishop et al.
patent: 7067460 (2006-06-01), Summerhill
patent: 0118147 (2001-03-01), None
Schlemmer et al.; “Progression of water-based fluids based on amine chemistry—Can the road lead to true oil mud replacements?”; 2003 American Association of Drilling Engineers Technical Conference Paper AADE-03-NTCE-36.
Daffin Michael D
Oswald Darin
Smith Clayton
Goodwin Sean W.
Kugel Timothy J.
Thompson Linda M.
Weatherford Engineered Chemistry Canada Ltd.
LandOfFree
Clay control additive for wellbore fluids does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Clay control additive for wellbore fluids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clay control additive for wellbore fluids will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2700737