Method of obtaining increased production in wells

Details Method of obtaining increased production in wells Method of obtaining increased production in wells

1975-05-08

1976-01-06

Novosad, Stephen J.

Wells

Processes

Chemical inter-reaction of two or more introduced materials

166302, 166307, 166308, 166312, E21B 4326, E21B 4327

Patent

active

039305392

ABSTRACT:
In order to increase the productivity of oil and gas wells, hydrochloric acid and phosphoric acid are pumped into the well. Thereafter, aqueous ammonia is forced into the bottom of the well by nitrogen under pressure. This produces a violent exothermic reaction in the formation around the bottom of the well which emulsifies the paraffin and disintegrates the limestone, so as to open the formation by forming large passages and cavities over large areas and distances, permitting the oil or gas to flow freely through the formation to the well bore.

REFERENCES:
patent: 139010 (1873-05-01), Looney
patent: 1806499 (1931-05-01), Ranney et al.
patent: 2747672 (1956-05-01), Simm
patent: 3529666 (1970-09-01), Crowe
patent: 3593793 (1971-07-01), Kelseaux
patent: 3630281 (1971-12-01), Fast et al.
patent: 3702635 (1972-11-01), Farr
patent: 3776312 (1973-12-01), Ban et al.
patent: R26466 (1968-09-01), Closmann

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