Self-diverting foamed system

Details Self-diverting foamed system Self-diverting foamed system

2006-12-12

2006-12-12

Tucker, Philip C. (Department: 1712)

Earth boring, well treating, and oil field chemistry

Well treating

Contains organic component

C507S260000, C507S267000, C507S277000, C507S933000, C166S300000, C166S307000

Reexamination Certificate

active

07148184

ABSTRACT:
A method is given for diverting acids in matrix acidizing and acid fracturing. The acids are diverted with a diverting agent that is an energized or foamed acidic viscoelastic surfactant system that contains a viscoelastic surfactant that gels and increases in viscosity when the acid in the foamed acidic viscoelastic surfactant system is spent. The method provides a synergistic combination of the diverting capabilities of foams and the diverting capabilities of viscoelastic gel systems. The resistance to flow of the gelled foamed viscoelastic surfactant system is greater than expected from a foam or a viscoelastic gel system alone.

REFERENCES:
patent: 3724549 (1973-04-01), Walter
patent: 4324669 (1982-04-01), Norman et al.
patent: 4591447 (1986-05-01), Kubala
patent: 4695389 (1987-09-01), Kubala
patent: 4807703 (1989-02-01), Jennings, Jr.
patent: 5979557 (1999-11-01), Card et al.
patent: 6035936 (2000-03-01), Whalen
patent: 6148917 (2000-11-01), Brookey et al.
patent: 6248699 (2001-06-01), Subramanian et al.
patent: 6258859 (2001-07-01), Dahayanake et al.
patent: 6306800 (2001-10-01), Samuel 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 et al.
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: 6929070 (2005-08-01), Fu et al.
patent: 2002/0004464 (2002-01-01), Nelson et al.
patent: 2002/0023752 (2002-02-01), Qu et al.
patent: 2002/0033260 (2002-03-01), Lungwitz et al.
patent: 2002/0147114 (2002-10-01), Dobson, Sr. et al.
patent: 2003/0019627 (2003-01-01), Qu 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 et al.
patent: 2004/0152604 (2004-08-01), Qu et al.
patent: 2004/0176478 (2004-09-01), Dahayanake et al.
patent: 2005/0067165 (2005-03-01), Cawiezel et al.
patent: 2005/0107265 (2005-05-01), Sullivan 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: 01/29369 (2001-04-01), None
patent: 03/054352 (2003-07-01), None
patent: 03/093641 (2003-11-01), 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., Feb. 1998.
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., Feb. 2003.
U.S. Appl. No. 10/370,633, titled, “Self-Diverting Pre-Flush Acid for Sandstone”.

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