Method for scale removal and scale inhibition in a well penetrat

Wells – Processes – Material placed in pores of formation to treat resident...

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Details

166244C, 166307, 166312, 252 855B, E21B 4327, E21B 4328

Patent

active

044858744

ABSTRACT:
Step declines in the production rate from a well following an acid treatment, and a scale inhibitor treatment are reversed by use of an EDTA treatment.

REFERENCES:
patent: 3481400 (1969-12-01), Kerver et al.
patent: 3482636 (1969-12-01), Crowe
patent: 3483925 (1969-12-01), Slyker
patent: 3633672 (1972-01-01), Smith et al.
patent: 3688829 (1972-09-01), Jones
patent: 3913678 (1975-10-01), Blount et al.

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