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2 168 602

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IPC

(21) (22)

Application

99127579/03, 1999-12-23

(24)

Start date

1999-12-23

(22)

Actual filing date

1999-12-23

(45)

Published

2001-06-10

(72)

Inventor

Ibragimov N.G.Zaljatov M.Sh.Zakirov A.A.Fadeev V.G.Takhautdinov R.Sh.Kurmashov A.A.Rajanov M.M.

(73)

Holder

Neftegazodobyvajushchee Upravlenie Oao

JOINT OF POLISHED ROD WITH SUCKER-ROD STRING Russian patent published in 2001 - IPC

Abstract RU 2168602 C1

FIELD: operation of oil wells with well sucker-rod pumps. SUBSTANCE: upper end of connected and adjusted in length sucker rod has thread for nut. Thread is installed for simultaneous contact with catching member under nut and compression spring located above nut. Working internal surface with angular position is organized on removable bushing installed in body lower end. In the case, body internal cavity is filled with lubricating oil and is isolated from environment. EFFECT: provided catching mechanism joining polished rod with sucker-rod string and ensuring reliable direct catching of rod body and efficient operation of pump plant within rated load. 1 dwg

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RU 2 168 602 C1

Authors

Ibragimov N.G.

Zaljatov M.Sh.

Zakirov A.A.

Fadeev V.G.

Takhautdinov R.Sh.

Kurmashov A.A.

Rajanov M.M.

Dates

2001-06-10—Published

1999-12-23—Filed