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2 500 878

(13)

(51)

IPC

E21B33/08(2006-01-01)

(21) (22)

Application

2012114065/03, 2012-04-10

(24)

Start date

2012-04-10

(22)

Actual filing date

2012-04-10

(45)

Published

2013-12-10

(72)

Inventor

Zhulaev Valerij PetrovichUrazakov Kamil RakhmatullovichBakhtizin Ramil' NazifovichSmol'Nikov Sergej Vasil'EvichDavletov Marat Shajkhenurovich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Neftjanoj Tekhnicheskij Universitet"

HARDWARE SYSTEM FOR PREPARATION AND PERFORMANCE OF WELL SERVICING Russian patent published in 2013 - IPC E21B33/08

Abstract RU 2500878 C1

FIELD: oil and gas industry.

SUBSTANCE: hardware system for preparation and performance of well servicing contains pump and tank installed at the ground level. Casing string and tubing string are installed in the well. Additional pipe column with two limit switches connected to pump by control line is run into space between casing string and tubing string. Float installed between casing string and additional pipe column moves between limit switches.

EFFECT: preventing siphon water spilling from the well during tripping operations, reducing time for well servicing and energy costs.

1 dwg

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RU 2 500 878 C1

Authors

Zhulaev Valerij Petrovich

Urazakov Kamil Rakhmatullovich

Bakhtizin Ramil' Nazifovich

Smol'Nikov Sergej Vasil'Evich

Davletov Marat Shajkhenurovich

Dates

2013-12-10—Published

2012-04-10—Filed