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(19)

(11)

2 017 925

(13)

(51)

IPC

(21) (22)

Application

4854671/03, 1990-06-07

(22)

Actual filing date

1990-06-07

(45)

Published

1994-08-15

(72)

Inventor

Shmavonjants V.Sh.Eshimov G.K.Kazakov A.A.Bezdenezhnykh V.I.Budenkov B.A.

(73)

Holder

Surgutskoe Otdelenie Zapadno-Sibirskogo Nauchno-Issledovatel'Skogo I Proektno-Konstruktorskogo Instituta Tekhnologii Glubokogo Razvedochnogo Burenija

BIT FOR ELECTROTHERMOMECHANICAL DRILLING Russian patent published in 1994 - IPC

Abstract RU 2017925 C1

FIELD: well drilling. SUBSTANCE: bit has solenoids 15 in which rods in form of metal cores 14 with crosspieces 11 on lower ends are accommodated. Crosspieces 11 are connected with holders 8. Casings 5 are made in form of blades 4. It also has permanent magnets 16 located on upper sections of blades 4 for interaction with its upper ends of rods 12. EFFECT: higher operate reliability of bit. 7 dwg

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RU 2 017 925 C1

Authors

Shmavonjants V.Sh.

Eshimov G.K.

Kazakov A.A.

Bezdenezhnykh V.I.

Budenkov B.A.

Dates

1994-08-15—Published

1990-06-07—Filed