Matrix acidizing high permeability contrast formations

Details Matrix acidizing high permeability contrast formations Matrix acidizing high permeability contrast formations

2008-01-15

2008-01-15

Suchfield, George (Department: 3676)

Wells

Processes

Specific low fluid loss feature for fluid attacking formation

C166S297000, C166S300000, C166S307000, C507S244000, C507S245000, C507S933000

Reexamination Certificate

active

07318475

ABSTRACT:
A method for stimulating thick or multilayered heterogeneous or homogeneous formations in a single trip without packers involves perforating with tubing conveyed perforation, then injecting a self-diverting acid, then moving the tubing string and perforating at a new location, and then injecting additional self-diverting acid. The sequence may be repeated. The acid is preferably a viscoelastic diverting acid. The self-diverting acid may be alternated with conventional treatment fluid. The job is designed to treat the least permeable zone(s) first and maximizes acid efficiency.

REFERENCES:
patent: 2756828 (1956-07-01), Deily
patent: 5322122 (1994-06-01), Jennings, Jr.
patent: 5551516 (1996-09-01), Norman et al.
patent: 6140277 (2000-10-01), Tibbles et al.
patent: 6258859 (2001-07-01), Dahayanake et al.
patent: 6394184 (2002-05-01), Tolman et al.
patent: 6667280 (2003-12-01), Chang et al.
patent: 6828280 (2004-12-01), England et al.
patent: 6929070 (2005-08-01), Fu et al.
patent: 6938693 (2005-09-01), Boney et al.
patent: 7008908 (2006-03-01), Chan et al.
patent: 7066260 (2006-06-01), Sullivan et al.
patent: 2002/0092650 (2002-07-01), Tolman et al.
patent: 2003/0119680 (2003-06-01), Chang et al.
patent: 2003/0139298 (2003-07-01), Fu et al.
patent: 0278540 (1992-08-01), None
patent: 2004/020788 (2004-03-01), None
Choosing a Perforation Strategy—Charlie Cosad, Oilfield Review, Oct. 1992.

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