METHOD FOR TREATMENT OF BOTTOM-HOLE FORMATION ZONE Russian patent published in 1995 - IPC

Abstract SU 1704514 A1

FIELD: gas producing industry. SUBSTANCE: method for treatment of bottom-hole formation zone includes successive injection through tubing of acid solution and displacing gas-liquid mixture. Wellbore pressure is stabilized to pressure not less than the formation pressure by means of additional injection of air to bottom-hole formation zone after injection of gas-liquid mixture. Gas-liquid mixture is injected in form of condensate-air mixture. Acid solution is injected in volume not less than inner volume of tubing. Acid solution-to-condensate ratio is 2:1. EFFECT: reduced time for development following the treatment of well opened formation with abnormally low formation pressure. 1 tbl

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SU 1 704 514 A1

Authors

Chernov N.I.

Klubnichkin S.P.

Il'Kovskij A.I.

Dates

1995-09-20Published

1989-04-11Filed