METHOD FOR ISOLATION OF WATER-PERMEABLE BED Russian patent published in 1998 - IPC

Abstract RU 2124124 C1

FIELD: oil production industry. SUBSTANCE: this relates to isolation of water-saturated intervals of oil bed and also to isolation of absorbing beds in process of drilling bore-holes at presence in beds of low-mineralized brine water. According to method, injected into bed is solution of sodium polysilicate and gel-creating agent. Used as sodium polysilicate is sodium polysilicate with silicate modulus of 4.2-6.5 in concentration of 1-10 mass%. In function of gel-creating agent usable is sulphamic acid or muriatic acid or calcium chloride. Application of aforesaid method simplifies isolation procedure and increases oil bed treating efficiency. EFFECT: higher overall efficiency. 1 cl, 1 tbl

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RU 2 124 124 C1

Authors

Pesternikov G.N.

Maksjutin A.S.

Sviridov S.I.

Puchkov S.P.

Obukhova V.B.

Poddubnyj Ju.A.

Djabin A.G.

Filippov V.P.

Muslimov R.Kh.

Nenarokov S.Ju.

Jusupov I.G.

Dobroskok B.E.

Kubareva N.N.

Musabirov R.Kh.

Dates

1998-12-27Published

1997-06-05Filed