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(19)

(11)

2 490 416

(13)

(51)

IPC

E21B12/02(2006-01-01)

(21) (22)

Application

2012101005/03, 2012-01-11

(24)

Start date

2012-01-11

(22)

Actual filing date

2012-01-11

(45)

Published

2013-08-20

(72)

Inventor

Aleksandrov Stanislav SergeevichAleksandrova Svetlana MikhajlovnaDistanova Ljubov' Stanislavovna

(73)

Holder

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

CHISEL WITH MONITORING OF ARMING STAGE Russian patent published in 2013 - IPC E21B12/02

Abstract RU 2490416 C1

FIELD: mining.

SUBSTANCE: chisel for drilling of wells includes mills of conical shape, where teeth crowns are arranged, having a tail of a cylindrical shape and a working head. Control teeth are installed along the mill on its different crowns, inside working heads of which a radioactive isotope indicator is placed tightly at the distance from the top to the permissible wear of teeth.

EFFECT: increased validity of chisel arming state monitoring in process of well drilling.

1 dwg

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RU 2 490 416 C1

Authors

Aleksandrov Stanislav Sergeevich

Aleksandrova Svetlana Mikhajlovna

Distanova Ljubov' Stanislavovna

Dates

2013-08-20—Published

2012-01-11—Filed