METHOD FOR TREATING DOWN-HOLE ZONE OF BED Russian patent published in 1998 - IPC

Abstract RU 2106488 C1

FIELD: oil and gas production industry. SUBSTANCE: this relates to treating down-hole zone of bed by injecting muriatic acid with various additives which delays reaction of muriatic acid with bed components and thus increasing depth of acid action upon bed. According to method, injected into bed is solution of muriatic acid and acid reaction inhibitor with rock mass. Used as reaction inhibitor is water-compatible mineralized brine liquid of density not less than 1.05 g/cm³ which is needed for dilution of concentrated muriatic acid to required concentration before injection into bed. This method is advantageous as it allows for increase of treating depth at substantial reduction of expenses. It also solves ecological problem of utilizing brine water. EFFECT: high efficiency. 1 dwg, 1 tbl

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RU 2 106 488 C1

Authors

Glumov I.F.

Ibatullin K.R.

Ibatullin R.R.

Sergeev S.S.

Fassakhov R.Kh.

Dates

1998-03-10—Published

1997-02-06—Filed