EP 1500782 A2 20050126 - Method of designing a roller cone bit
Title (en)
Method of designing a roller cone bit
Title (de)
Verfahren zum Entwurf eines Rollenbohrmeissels
Title (fr)
Procédé de conception d'un trépan à molettes
Publication
Application
Priority
- EP 03021139 A 19990831
- EP 99945376 A 19990831
- US 9844298 P 19980831
Abstract (en)
Disclosed herein is a method of designing a roller cone bit, comprising the steps of: a) adjusting the orientation of at least one row of teeth on a cone, in dependence on an expected trajectory of said tooth through formation material at the cutting face; b) calculating the width of uncut rings of formation material, in dependence on the orientation of said row of teeth, and adjusting the position of said row of teeth in dependence on said calculated width; and c) recalculating the rotational speed of said cone, if the position of said row is changed, and accordingly recalculating said trajectory of teeth in said row.
IPC 1-7
IPC 8 full level
E21B 10/08 (2006.01); E21B 10/16 (2006.01); E21B 41/00 (2006.01)
CPC (source: EP)
E21B 10/08 (2013.01); E21B 10/16 (2013.01)
Designated contracting state (EPC)
GB IT
DOCDB simple family (publication)
WO 0012860 A2 20000309; WO 0012860 A3 20000608; WO 0012860 A9 20001123; AU 5798499 A 20000321; EP 1117894 A2 20010725; EP 1117894 A4 20020814; EP 1117894 B1 20031203; EP 1117894 B2 20100303; EP 1371811 A2 20031217; EP 1371811 A3 20040102; EP 1371811 B1 20110330; EP 1498572 A2 20050119; EP 1498572 A3 20060412; EP 1500781 A2 20050126; EP 1500781 A3 20060412; EP 1500782 A2 20050126; EP 1500782 A3 20060412; EP 1500783 A2 20050126; EP 1500783 A3 20060412; ID 28893 A 20010712; MX PA01002208 A 20030327
DOCDB simple family (application)
US 9919992 W 19990831; AU 5798499 A 19990831; EP 03021139 A 19990831; EP 04025232 A 19990831; EP 04025560 A 19990831; EP 04025561 A 19990831; EP 04025562 A 19990831; EP 99945376 A 19990831; ID 20010732 A 19990831; MX PA01002208 A 19990831