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2 366 795

(13)

(51)

IPC

E21B21/14(2006-01-01)

(21) (22)

Application

2008142244/03, 2008-10-27

(24)

Start date

2008-10-27

(22)

Actual filing date

2008-10-27

(45)

Published

2009-09-10

(72)

Inventor

Ibragimov Nail' GabdulbarievichTaziev Mirgazijan ZakievichZakirov Ajrat FikusovichGaraev Rafaehl' RasimovichAsljamov Ajrat IngelevichSinchugov Nikolaj Sergeevich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Im. V.D. Shashina

METHOD OF WELL CONSTRUCTION Russian patent published in 2009 - IPC E21B21/14

Abstract RU 2366795 C1

FIELD: oil and gas production.

SUBSTANCE: invention refers to oil industry and can be implemented at construction of well. The disclosed method of well construction consists in destruction of rock, in direct flushing with drill agent via a drill string, and in removal of drilled rock to day surface into an absorbing zone. During removal of drilled rock into the absorbing zone flushing is carried out with foam produced by foaming of 1.5-2.5 % solution of surface active substances ML-81B in water to the degree of aeration of 5-10%.

EFFECT: maintaining collecting properties of producing reservoir.

3 ex

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RU 2 366 795 C1

Authors

Ibragimov Nail' Gabdulbarievich

Taziev Mirgazijan Zakievich

Zakirov Ajrat Fikusovich

Garaev Rafaehl' Rasimovich

Asljamov Ajrat Ingelevich

Sinchugov Nikolaj Sergeevich

Dates

2009-09-10—Published

2008-10-27—Filed