Wells – Processes – Placing fluid into the formation
Patent
1986-09-05
1987-08-04
Suchfield, George A.
Wells
Processes
Placing fluid into the formation
166308, 166902, E21B 43267, E21B 4327
Patent
active
046839542
ABSTRACT:
A method and composition for stimulating subterranean formations containing iron deposits. The composition comprises an admixture of (i) at least one member selected from the group consisting of hydroxylamine hydrochloride, hydroxylamine hydrobromide, hydroxylamine sulfate, hydrazine monohydrochloride, hydrazine dihydrochloride, hydrazine sulfate, hydrazine monobromide, hydrazine dibromide, hydrazine monoiodide, hydrazine diiodide and hydroquinone together with (ii) at least one member selected from the group consisting of gluconodeltalactone, citric acid, salts of citric acid, ethylenediaminetetraacetic acid, salts of ethylenediamianetetraacetic acid, nitrilotriacetic acid, salts of nitrilotriacetic acid, hydroxyethylethylenediaminetriacetic acid, and salts of hydroxyethylethylenediaminetriacetic acid and (iii) a catalytic amount of a solubilized salt of a compound capable of providing cupric, cuprous, nickel, zinc ions or mixtures thereof. The method comprises contacting the subterranean formation in an appropriate manner with the above-described composition present in an amount sufficient to sequester iron. When the treating fluid used in stimulating the subterranean formation is substantially non-acidic, the compounds of group (ii), above, can be omitted from the above-described composition and iron still is sequestered.
REFERENCES:
patent: 2175079 (1939-10-01), Dow
patent: 2175081 (1939-10-01), Grebe
patent: 2175095 (1939-10-01), Stoesser
patent: 3142335 (1964-07-01), Dill et al.
patent: 3752233 (1973-08-01), Svaldi et al.
patent: 4151098 (1979-04-01), Dill et al.
patent: 4167214 (1979-09-01), Street, Jr.
patent: 4213866 (1980-07-01), Ashby et al.
patent: 4317735 (1982-03-01), Crowe et al.
patent: 4574050 (1986-03-01), Crowe et al.
patent: 4585065 (1986-04-01), Penny et al.
Dill Walter R.
Ford William G. F.
Gdanski Ricky D.
Walker Michael L.
Halliburton Company
Kent Robert A.
Suchfield George A.
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