CA1116592A - Trepans de forage a elements de coupe au diamant - Google Patents

Trepans de forage a elements de coupe au diamant

Info

Publication number
CA1116592A
CA1116592A CA000372808A CA372808A CA1116592A CA 1116592 A CA1116592 A CA 1116592A CA 000372808 A CA000372808 A CA 000372808A CA 372808 A CA372808 A CA 372808A CA 1116592 A CA1116592 A CA 1116592A
Authority
CA
Canada
Prior art keywords
segments
bit
gage
matrix
face
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
CA000372808A
Other languages
English (en)
Inventor
David S. Rowley
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.)
Norton Christensen Inc
Original Assignee
Christensen 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
Priority claimed from CA338,830A external-priority patent/CA1106832A/fr
Application filed by Christensen Inc filed Critical Christensen Inc
Priority to CA000372808A priority Critical patent/CA1116592A/fr
Application granted granted Critical
Publication of CA1116592A publication Critical patent/CA1116592A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
CA000372808A 1979-10-31 1981-03-11 Trepans de forage a elements de coupe au diamant Expired CA1116592A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000372808A CA1116592A (fr) 1979-10-31 1981-03-11 Trepans de forage a elements de coupe au diamant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA338,830A CA1106832A (fr) 1979-10-31 1979-10-31 Trepan de forage a mises au diamant
CA000372808A CA1116592A (fr) 1979-10-31 1981-03-11 Trepans de forage a elements de coupe au diamant

Publications (1)

Publication Number Publication Date
CA1116592A true CA1116592A (fr) 1982-01-19

Family

ID=25668987

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000372808A Expired CA1116592A (fr) 1979-10-31 1981-03-11 Trepans de forage a elements de coupe au diamant

Country Status (1)

Country Link
CA (1) CA1116592A (fr)

Similar Documents

Publication Publication Date Title
US4234048A (en) Drill bits embodying impregnated segments
EP2122111B1 (fr) Trépan de carottage avec hauteur de matrice étendue
US4991670A (en) Rotary drill bit for use in drilling holes in subsurface earth formations
US8087478B2 (en) Cutting elements including cutting tables with shaped faces configured to provide continuous effective positive back rake angles, drill bits so equipped and methods of drilling
CA1308407C (fr) Methodes et appareil de reglage du debit de fluide hydraulique de trepan de forage
US4719979A (en) Expendable diamond drag bit
US7117960B2 (en) Bits for use in drilling with casting and method of making the same
US4813500A (en) Expendable diamond drag bit
US4714120A (en) Diamond drill bit with co-joined cutters
US20160237752A1 (en) Subsurface drilling tool
GB2060735A (en) Improvements in diamond drill bits for drilling bore holes in earth formations
CA1116592A (fr) Trepans de forage a elements de coupe au diamant
US5284215A (en) Earth-boring drill bit with enlarged junk slots
CA1116161A (fr) Trepans de forage a elements de coupe au diamant
AU2011201711B1 (en) Core drill bit with extended matrix height
CA1106832A (fr) Trepan de forage a mises au diamant
GB2110746A (en) Improvements in diamond drill bits for drilling bore holes in earth formations
WO2007068866A1 (fr) Trepan a lames
CN111894471A (zh) 具有贯穿延伸的沟道的钻头及其制造方法
GB2415208A (en) Drag bit
CA1253483A (fr) Outil de forage au diamant a organes de coupe mutuellement joints

Legal Events

Date Code Title Description
MKEX Expiry