EP 1498574 A2 20050119 - Method of determining a drilling parameter of a roller-cone drill bit
Title (en)
Method of determining a drilling parameter of a roller-cone drill bit
Title (de)
Verfahren zur Bestimmung eines Bohrparameters eines Rollenbohrmeissels
Title (fr)
Procédé pour déterminer un paramètre de forage pour 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 determining a drilling parameter of each one of a plurality of roller cones on a roller cone drill bit during drilling, comprising: calculating, from a geometry of cutting elements on each of the roller cones and an earth formation being drilled by the drill bit, the drilling parameter acting on each of the cutting elements; incrementally rotating the bit and recalculating the drilling parameter acting on each of the cutting elements; repeating the incrementally rotating and recalculating for a selected number of incremental rotations; and combining the drilling parameter acting on the cutting elements on each one of the roller cones.
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