Wells – Processes – Chemical inter-reaction of two or more introduced materials
Patent
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.
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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
Novosad Stephen J.
Suckfield George A.
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