RU96102915A - DRILL BIT FOR EXTENDING WELLS - Google Patents

DRILL BIT FOR EXTENDING WELLS

Info

Publication number
RU96102915A
RU96102915A RU96102915/03A RU96102915A RU96102915A RU 96102915 A RU96102915 A RU 96102915A RU 96102915/03 A RU96102915/03 A RU 96102915/03A RU 96102915 A RU96102915 A RU 96102915A RU 96102915 A RU96102915 A RU 96102915A
Authority
RU
Russia
Prior art keywords
drill bit
conical
shank
tip
head
Prior art date
Application number
RU96102915/03A
Other languages
Russian (ru)
Other versions
RU2098593C1 (en
Inventor
В.А. Гаун
Original Assignee
Институт горного дела СО РАН
Filing date
Publication date
Application filed by Институт горного дела СО РАН filed Critical Институт горного дела СО РАН
Priority to RU96102915A priority Critical patent/RU2098593C1/en
Priority claimed from RU96102915A external-priority patent/RU2098593C1/en
Application granted granted Critical
Publication of RU2098593C1 publication Critical patent/RU2098593C1/en
Publication of RU96102915A publication Critical patent/RU96102915A/en

Links

Claims (2)

1. Буровая коронка для расширения скважин, включающая соединенные между собой головку с центральным коническим отверстием и хвостовик с коническим наконечником, отличающаяся тем, что на конической поверхности центрального отверстия головки и на конической поверхности наконечника хвостовика выполнены спиральные канавки полукруглого профиля, образующие совместно спиральной формы полость, в которой установлена коническая пружина сжатия из круглой проволоки.1. A drill bit for expanding wells, including a interconnected head with a central conical hole and a shank with a conical tip, characterized in that on the conical surface of the central hole of the head and on the conical surface of the shank tip, helical grooves of a semicircular profile are formed, which together form a spiral-shaped cavity in which a conical compression spring made of round wire is installed. 2. Буровая коронка для расширения скважин по п. 1, отличающаяся тем, что угол уклона конических поверхностей центрального отверстия головки и наконечника хвостовика выполнен в пределах 8 - 15o.2. A drill bit for expanding wells according to claim 1, characterized in that the angle of inclination of the conical surfaces of the Central hole of the head and the tip of the shank is made in the range of 8 - 15 o .
RU96102915A 1996-02-15 1996-02-15 Crown bit for enhancing boreholes RU2098593C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU96102915A RU2098593C1 (en) 1996-02-15 1996-02-15 Crown bit for enhancing boreholes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU96102915A RU2098593C1 (en) 1996-02-15 1996-02-15 Crown bit for enhancing boreholes

Publications (2)

Publication Number Publication Date
RU2098593C1 RU2098593C1 (en) 1997-12-10
RU96102915A true RU96102915A (en) 1998-01-27

Family

ID=20176915

Family Applications (1)

Application Number Title Priority Date Filing Date
RU96102915A RU2098593C1 (en) 1996-02-15 1996-02-15 Crown bit for enhancing boreholes

Country Status (1)

Country Link
RU (1) RU2098593C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IES86935B2 (en) * 2017-07-20 2018-11-14 Mincon Int Ltd Drill bit with detachable bit head

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