CA1046497A - Trepan rotatif multi-etages pour le forage dans le roc tres dur - Google Patents

Trepan rotatif multi-etages pour le forage dans le roc tres dur

Info

Publication number
CA1046497A
CA1046497A CA247,671A CA247671A CA1046497A CA 1046497 A CA1046497 A CA 1046497A CA 247671 A CA247671 A CA 247671A CA 1046497 A CA1046497 A CA 1046497A
Authority
CA
Canada
Prior art keywords
cutter
bit
inserts
well bore
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA247,671A
Other languages
English (en)
Inventor
Raul A. Miglierini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dresser Industries Inc
Original Assignee
Dresser Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dresser Industries Inc filed Critical Dresser Industries Inc
Application granted granted Critical
Publication of CA1046497A publication Critical patent/CA1046497A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
CA247,671A 1975-05-29 1976-03-11 Trepan rotatif multi-etages pour le forage dans le roc tres dur Expired CA1046497A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US58199875A 1975-05-29 1975-05-29

Publications (1)

Publication Number Publication Date
CA1046497A true CA1046497A (fr) 1979-01-16

Family

ID=24327428

Family Applications (1)

Application Number Title Priority Date Filing Date
CA247,671A Expired CA1046497A (fr) 1975-05-29 1976-03-11 Trepan rotatif multi-etages pour le forage dans le roc tres dur

Country Status (5)

Country Link
AU (1) AU507979B2 (fr)
CA (1) CA1046497A (fr)
MX (1) MX144249A (fr)
NO (1) NO761040L (fr)
ZA (1) ZA761731B (fr)

Also Published As

Publication number Publication date
ZA761731B (en) 1977-03-30
AU507979B2 (en) 1980-03-06
NO761040L (fr) 1976-11-30
MX144249A (es) 1981-09-18
AU1261676A (en) 1977-10-06

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