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2 168 612

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IPC

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Application

2000126313/03, 2000-10-19

(24)

Start date

2000-10-19

(22)

Actual filing date

2000-10-19

(45)

Published

2001-06-10

(72)

Inventor

Vishnjakov A.N.Efimkin A.A.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Firma

METHOD OF PROVISION AND MAINTENANCE OF SERVICEABILITY CONDITION OF TUBING FLOW AREA IN DEVELOPMENT WELL AND CLEANING DEVICE Russian patent published in 2001 - IPC

Abstract RU 2168612 C1

FIELD: oil and gas production; applicable in operation of development wells. SUBSTANCE: method includes checking of flow area value of tubing string in presence of minimal circulation through it; step change of maximum size in cross-section of rotating heads with cutting members of cleaning device. This size is brought to value not exceeding the size of tool of tubing string gagging. Cleaning is carried out by axial motion of cleaning device. EFFECT: provided maximum possible production rate of wells of one ore other parts of deposit or entire deposit. 15 cl, 2 dwg

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RU 2 168 612 C1

Authors

Vishnjakov A.N.

Efimkin A.A.

Dates

2001-06-10—Published

2000-10-19—Filed

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