EP 1498573 A2 20050119 - Method for designing a roller-cone bit
Title (en)
Method for designing a roller-cone bit
Title (de)
Entwurfsverfahren für einen Rollenbohrmeissel
Title (fr)
Procédé de conception d'un trépan à cônes
Publication
Application
Priority
- EP 03021140 A 19990831
- EP 99945375 A 19990831
- US 9846698 P 19980831
Abstract (en)
Disclosed herein is a method for designing a roller cone drill bit, comprising simulating the bit drilling through an earth formation wherein the simulating comprises determining an axial force on a cutting element, based on a means for determining an axial force, determining an axial force on the roller cones, based on the axial forces on the cutting elements, and angularly rotating the bit; adjusting at least one design parameter of the bit; repeating the simulating the bit drilling; and comparing a distribution of axial forces among the roller cones prior to the adjusting the at least one design parameter with a distribution of axial forces among the roller cones after adjusting the at least one design parameter.
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)
EP 1498573 A2 20050119; EP 1498573 A3 20060524; EP 1498574 A2 20050119; EP 1498574 A3 20060517; EP 1498575 A2 20050119; EP 1498575 A3 20060517
DOCDB simple family (application)
EP 04025233 A 19990831; EP 04025234 A 19990831; EP 04025235 A 19990831