Wells – Processes – Chemical inter-reaction of two or more introduced materials
Patent
1980-03-24
1981-05-19
Novosad, Stephen J.
Wells
Processes
Chemical inter-reaction of two or more introduced materials
166307, 166308, E21B 4326, E21B 4327
Patent
active
042678870
ABSTRACT:
Subterranean formations having temperatures above about 250.degree. F. are acidized by introducing a substantially anhydrous foamed treating fluid through a well and into the formation. The treating fluid contains a gas, a nonionic substantially hydrophobic foaming agent and an acid precursor which is normally liquid halogenated hydrocarbon having one or two carbon atoms per molecule. The acid precursor hydrolyzes in situ to generate a hydrohalic acid.
REFERENCES:
patent: 1916122 (1933-06-01), Grebe
patent: 2059459 (1936-11-01), Hund
patent: 2124530 (1938-07-01), Loomis et al.
patent: 2259428 (1941-10-01), Shelly
patent: 2265923 (1941-12-01), Normand
patent: 2300393 (1942-11-01), Ayers
patent: 2358665 (1944-09-01), Shapiro
patent: 2663689 (1953-12-01), Kingson et al.
patent: 2765851 (1956-10-01), Bond
patent: 3215199 (1965-11-01), Dilgren
patent: 3288216 (1966-11-01), Blickensderfer et al.
patent: 3297090 (1967-01-01), Dilgren
patent: 3307630 (1967-03-01), Dilgren et al.
patent: 3379249 (1968-04-01), Gilchrist et al.
patent: 3481398 (1969-12-01), Prats
patent: 3561533 (1971-02-01), McKinnell
patent: 3572440 (1971-03-01), Hutchison et al.
patent: 3605899 (1971-09-01), Tate et al.
patent: 3695354 (1972-10-01), Dilgren et al.
patent: 3828854 (1974-08-01), Templeton et al.
patent: 3868998 (1975-03-01), Lybarger et al.
patent: 3937283 (1976-02-01), Blauer et al.
patent: 3938593 (1976-02-01), Friedman
patent: 4027731 (1977-06-01), Smith et al.
patent: 4044833 (1977-08-01), Volz
Thomas et al., "Matrix Treatment Employs New Acid System for Stimulation and Control of Fines Migration in Sandstone Formations", Paper SPE 7566, Oct., 1978.
Clark, H. B. et al., "The Use of Fluorochemical Surfactants in Non-aqueous Stimulation Fluids", Paper SPE 7894, Jan., 1979.
3M Technical Information Sheet on FLUORAD.RTM. Brand Well Stimulation Additive FC 740, 6/79.
"New Hydrocarbon Foamer Improves Well Stimulation", World Oil, Aug., 1979.
Farrell Daniel R.
Novosad Stephen J.
Sandford Dean
Suchfield George A.
Union Oil Company of California
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