HYBRID ROLLER-MILL BIT AND HYBRID ROLLER-DRAG BIT

A roller-mill bit for use in a wellbore includes: a body having a coupling formed at an upper end thereof and a plurality of lower legs; a plurality of roller disks, each roller disk secured to a bearing shaft of a respective leg for rotation relative thereto; a row of crushers mounted around each r...

Full description

Saved in:
Bibliographic Details
Main Authors GALLIFET, THOMAS, STROEVER, MATTHEW CHARLES, NEAL, PATRICIA ANN, HOWARD, JOHNATHAN WALTER, MAURSTAD, CARY ANDREW
Format Patent
LanguageEnglish
Published 13.12.2018
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
Online AccessGet full text

Cover

More Information
Summary:A roller-mill bit for use in a wellbore includes: a body having a coupling formed at an upper end thereof and a plurality of lower legs; a plurality of roller disks, each roller disk secured to a bearing shaft of a respective leg for rotation relative thereto; a row of crushers mounted around each roller disk; and a fixed mill mounted to the bearing shafts and comprising a pad for each roller disk. Each pad is dressed with a cermet material.
Bibliography:Application Number: US201715617005