Foamed viscoelastic surfactants

Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C507S260000, C507S261000, C507S264000, C507S266000, C507S267000, C166S270100, C166S308600, C166S309000

Reexamination Certificate

active

07345012

ABSTRACT:
A method for increasing the foam stability of foams made with cationic, zwitterionic, and amphoteric viscoelastic surfactant fluid systems by adding an effective amount of an amphiphilic polymeric foam stabilizer containing at least one portion that is a partially hydrolyzed polyvinyl ester or partially hydrolyzed polyacrylate. The foam stabilizer allows foams to be used at temperatures at which the unfoamed fluids would not have stable viscosity, and allows use of lower viscoelastic surfactant concentrations in the liquid phase. Preferred surfactants are betaines and quaternary amines. The fluids are useful in oilfield treatments, for example fracturing and gravel packing.

REFERENCES:
patent: 3302711 (1967-02-01), Dilgren
patent: 3724549 (1973-04-01), Dill
patent: 3880764 (1975-04-01), Donham
patent: 4324669 (1982-04-01), Norman et al.
patent: 4591447 (1986-05-01), Kubala
patent: 4664818 (1987-05-01), Halliday et al.
patent: 4695389 (1987-09-01), Kubala
patent: 4807703 (1989-02-01), Jennings, Jr.
patent: 5147907 (1992-09-01), Rinch et al.
patent: 5574120 (1996-11-01), Heidel et al.
patent: 5617920 (1997-04-01), Dovan et al.
patent: 5760154 (1998-06-01), Krauze et al.
patent: 5979557 (1999-11-01), Card et al.
patent: 6035936 (2000-03-01), Whalen
patent: 6063737 (2000-05-01), Haberman et al.
patent: 6133204 (2000-10-01), Newhouse et al.
patent: 6148917 (2000-11-01), Brookey et al.
patent: 6207780 (2001-03-01), Stockhausen et al.
patent: 6258859 (2001-07-01), Dahayanake et al.
patent: 6306800 (2001-10-01), Samuel et al.
patent: 6348436 (2002-02-01), Langlois et al.
patent: 6367548 (2002-04-01), Purvis et al.
patent: 6399546 (2002-06-01), Chang et al.
patent: 6435277 (2002-08-01), Qu et al.
patent: 6482866 (2002-11-01), Dahayanake et al.
patent: 6497290 (2002-12-01), Misselbrook
patent: 6569814 (2003-05-01), Brady et al.
patent: 6605570 (2003-08-01), Miller et al.
patent: 6637517 (2003-10-01), Samuel et al.
patent: 6667280 (2003-12-01), Chang et al.
patent: 6703352 (2004-03-01), Dahayanake et al.
patent: 2002/0004464 (2002-01-01), Nelson et al.
patent: 2002/0033260 (2002-03-01), Lungwitz et al.
patent: 2002/0147114 (2002-10-01), Dobsen, Sr. et al.
patent: 2003/0119680 (2003-06-01), Chang et al.
patent: 2003/0134751 (2003-07-01), Lee et al.
patent: 2003/0139298 (2003-07-01), Fu et al.
patent: 2004/0009880 (2004-01-01), Fu
patent: 2004/0176478 (2004-09-01), Dahayanake et al.
patent: 2005/0059555 (2005-03-01), Dusterhoft et al.
patent: 2005/0067165 (2005-03-01), Cawiezel et al.
patent: 2005/0107265 (2005-05-01), Sullivan et al.
patent: 2005/0137095 (2005-06-01), Cawiezel et al.
patent: 2006/0111248 (2006-05-01), Lee et al.
patent: 2006/0128598 (2006-06-01), Chen et al.
patent: 1109356 (1981-09-01), None
patent: 2012837 (1979-08-01), None
patent: 2354541 (2001-08-01), None
patent: 2372058 (2002-08-01), None
patent: WO 9856497 (1998-12-01), None
patent: 0129369 (2001-04-01), None
patent: 03054352 (2003-07-01), None
patent: 03056130 (2003-07-01), None
patent: 03093641 (2003-11-01), None
patent: 2005071038 (2005-08-01), None
SPE 56529—Case study of a novel acid-diversion technique in carbonate reservoirs—F. F. Chang, T. Love, C.J. Affeld, J.B. Blevins III, R.L. Thomas and D.K. Fu.
SPE 80274—Application of Novel Diversion Acidizing Techniques to Improve Gas Production in Heterogeneous Formation. By Xugang Wang, Honglan Zou, Jun Tian, Fuxiang Zhang, Xingsheng Cheng and Suzhen Li.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Foamed viscoelastic surfactants does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Foamed viscoelastic surfactants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Foamed viscoelastic surfactants will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2813764

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.