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2 206 716

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C2

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IPC

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Application

2001121356/03, 2001-07-30

(24)

Start date

2001-07-30

(22)

Actual filing date

2001-07-30

(45)

Published

2003-06-20

(72)

Inventor

Krauin'Sh P.Ja.Smajlov S.A.Ioppa A.V.Mojzes B.B.Kornev M.V.

(73)

Holder

Tomskij Politekhnicheskij Universitet

DEVICE FOR CLEANING OF WELLS FILLED WITH FLUID Russian patent published in 2003 - IPC

Abstract RU 2206716 C2

FIELD: devices for cleaning of oil and gas wells from various deposits. SUBSTANCE: device has working chamber with supporting bushing, stepped piston, means for freeing of stepped piston and movable sleeve. Working chamber is suspended from rope through geophysical cap and located on body other end. Stepped piston is located inside chamber lower part. Device has limiting bushing, hinged plug and diffuser. Stepped piston has clearance with working chamber body and plug. Movable sleeve rests on limiting bushing. Hinged plug is located in movable sleeve. Means for freeing of stepped piston is made in form of diffuser, stop nut and deformed washer which holds stepped piston with respect to working chamber. EFFECT: higher efficiency of well cleaning simplified design of device. 2 dwg

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RU 2 206 716 C2

Authors

Krauin'Sh P.Ja.

Smajlov S.A.

Ioppa A.V.

Mojzes B.B.

Kornev M.V.

Dates

2003-06-20—Published

2001-07-30—Filed

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