Wells – Processes – Material placed in pores of formation to treat resident...
Patent
1990-01-04
1991-11-12
Suchfield, George A.
Wells
Processes
Material placed in pores of formation to treat resident...
166300, 166304, 166307, 252 8553, E21B 4327
Patent
active
050639978
ABSTRACT:
The invention discloses a process for reducing sludging during acid treatment of an oil well by adding phosphinic acid or a soluble salt thereof and a source of cupric or cuprous ion. The addition of an iodide ion source to this combination aids its effectiveness in stronger acids.
REFERENCES:
patent: 3021279 (1962-02-01), Scanley
patent: 3773465 (1973-11-01), Keeney et al.
patent: 3816322 (1974-06-01), Griffin et al.
patent: 3865435 (1975-02-01), Sareen et al.
patent: 4096914 (1978-06-01), McLaughlin et al.
patent: 4137972 (1979-02-01), McLaughlin et al.
patent: 4679631 (1987-07-01), Dill et al.
patent: 4683954 (1987-08-01), Walker et al.
patent: 4752404 (1988-06-01), Burns et al.
patent: 4823874 (1989-04-01), Ford
patent: 4871024 (1989-10-01), Cizek
Paper No. 85-36-38, "Recent Studies Into Iron/Surfactant/Sludge Interactions in Acidizing", by J. R. Delorey, R. S. Taylor, Petroleum Society of Canadian Institute of Mining, Edmonton, Jun. 1985.
"Iron/Surfactant/Crude Interactions--New Considerations in Acidizing", by John Delorey, Robert Taylor, 3rd Brazilian Congress of Petroleum, Oct. 5-10, 1986.
Delorey John R.
Pachla Sylvia K.
Taylor Robert S.
Nowsco Well Service Ltd.
Suchfield George A.
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