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2 172 401

(13)

(51)

IPC

(21) (22)

Application

99121493/03, 1999-10-11

(24)

Start date

1999-10-11

(22)

Actual filing date

1999-10-11

(45)

Published

2001-08-20

(72)

Inventor

Orlov G.A.Musabirov M.Kh.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Tatarskij Nauchno-Issledovatel'Skij I Proektnyj Institut Nefti

METHOD OF ACID TREATMENT OF OIL FORMATION Russian patent published in 2001 - IPC

Abstract RU 2172401 C2

FIELD: oil producing industry, more precisely, methods of intensification of oil recovery from producing formation tapped by wells with horizontal wellbores. SUBSTANCE: method of acid treatment of oil formation tapped by well with horizontal wellbore includes lowering of continuous pipe string to bottom hole, injection of acid through pipe and its forcing into formation. Acid is injected into formation with uniform motion of string of continuous pipe over axis of wellbore in treated interval of producing formation with rotary motion of acid flow imparted at its leaving of pipe. EFFECT: uniform supply of acid, increased productivity of oil producing horizontal wells. 2 dwg, 1 ex

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RU 2 172 401 C2

Authors

Orlov G.A.

Musabirov M.Kh.

Dates

2001-08-20—Published

1999-10-11—Filed