CA1256856A - Trepan de foration dans les gisements friables a durs - Google Patents

Trepan de foration dans les gisements friables a durs

Info

Publication number
CA1256856A
CA1256856A CA000533561A CA533561A CA1256856A CA 1256856 A CA1256856 A CA 1256856A CA 000533561 A CA000533561 A CA 000533561A CA 533561 A CA533561 A CA 533561A CA 1256856 A CA1256856 A CA 1256856A
Authority
CA
Canada
Prior art keywords
cutting
cutting elements
matrix
bit
exposed
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
CA000533561A
Other languages
English (en)
Inventor
Louis K. Bigelow
Richard H. Grappendorf
Alexander R. Meskin
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.)
Baker Hughes Oilfield Operations LLC
Original Assignee
Eastman Christensen Co
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 Eastman Christensen Co filed Critical Eastman Christensen Co
Priority to CA000533561A priority Critical patent/CA1256856A/fr
Application granted granted Critical
Publication of CA1256856A publication Critical patent/CA1256856A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
CA000533561A 1987-04-01 1987-04-01 Trepan de foration dans les gisements friables a durs Expired CA1256856A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000533561A CA1256856A (fr) 1987-04-01 1987-04-01 Trepan de foration dans les gisements friables a durs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000533561A CA1256856A (fr) 1987-04-01 1987-04-01 Trepan de foration dans les gisements friables a durs

Publications (1)

Publication Number Publication Date
CA1256856A true CA1256856A (fr) 1989-07-04

Family

ID=4135348

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000533561A Expired CA1256856A (fr) 1987-04-01 1987-04-01 Trepan de foration dans les gisements friables a durs

Country Status (1)

Country Link
CA (1) CA1256856A (fr)

Similar Documents

Publication Publication Date Title
US4673044A (en) Earth boring bit for soft to hard formations
CA1206470A (fr) Forme de dent pour outil de foration
EP0127077B1 (fr) Trépan de forage rotatif
US6401844B1 (en) Cutter with complex superabrasive geometry and drill bits so equipped
US5103922A (en) Fishtail expendable diamond drag bit
EP0542237B1 (fr) Elément de coupe pour un trépan de forage et méthode pour réduire la charge de pression des débris de forage
US6296069B1 (en) Bladed drill bit with centrally distributed diamond cutters
EP0239328B1 (fr) Trépan de forage
US6009963A (en) Superabrasive cutting element with enhanced stiffness, thermal conductivity and cutting efficiency
US6408958B1 (en) Superabrasive cutting assemblies including cutters of varying orientations and drill bits so equipped
US5341890A (en) Ultra hard insert cutters for heel row rotary cone rock bit applications
EP0117241B1 (fr) Trépan de forage et élément de coupe
US4718505A (en) Rotary drill bits
EP0117506B1 (fr) Dent de coupe et trépan rotatif avec un élément diamanté polycristallin totalement exposé
US4512426A (en) Rotating bits including a plurality of types of preferential cutting elements
US6568492B2 (en) Drag-type casing mill/drill bit
CA2140828C (fr) Outil de coupe a diamants
US4491188A (en) Diamond cutting element in a rotating bit
US9828810B2 (en) Mill-drill cutter and drill bit
EP0291314A2 (fr) Structure de coupe et trépan de forage rotatif comportant une telle structure
EP0186408B1 (fr) Elément de coupe pour trépan de forage rotatif
CA1218353A (fr) Configuration de dent pour circonvenir aux contraintes de cisaillement
CA1248939A (fr) Diamant polycrystallin monte en saillie dans un trepan a corps-matrice
GB2314360A (en) Cutter assembly for rock bits with back support groove
CA1256856A (fr) Trepan de foration dans les gisements friables a durs

Legal Events

Date Code Title Description
MKEX Expiry