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2 114 288

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Application

97111687/03, 1997-07-10

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Actual filing date

1997-07-10

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Published

1998-06-27

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Inventor

Starkova N.R.Abaturov S.V.Shpurov I.V.Ramzanov D.Sh.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Neftjanaja Kompanija

METHOD FOR INCREASED EMBRACING OF NONUNIFORM BEDS BY FLOODING Russian patent published in 1998 - IPC

Abstract RU 2114288 C1

FIELD: oil and gas production industry. SUBSTANCE: according to method, alkali solution is pumped into injection well. Then, injected is water solution of dual-valence metal chloride and again alkali solution in proportion of 2:1 at equal concentration of solutions. Application of method allows for increasing oil recovery from beds with reduction of flooding oil to be extracted due to stability of plugging sediment with respect to bed fluids and oil-isolating ability of injected solutions. EFFECT: higher efficiency. 2 cl, 2 tbl

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RU 2 114 288 C1

Authors

Starkova N.R.

Abaturov S.V.

Shpurov I.V.

Ramzanov D.Sh.

Dates

1998-06-27—Published

1997-07-10—Filed

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