MODULAR EARTH BORING TOOLS HAVING FIXED BLADES AND REMOVABLE BLADE ASSEMBLIES AND RELATED METHODS

An earth-boring tool includes a body, a plurality of fixed blades, a first plurality of cutting elements secured to the plurality of fixed blades, a plurality of removable blade assemblies removably coupled to the body, and a second plurality of cutting elements secured to the plurality of removable...

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Bibliographic Details
Main Authors Zahradnik, Anton F, Nguyen, Don Q, Pessier, Rudolf Carl
Format Patent
LanguageEnglish
Published 08.12.2022
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
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Summary:An earth-boring tool includes a body, a plurality of fixed blades, a first plurality of cutting elements secured to the plurality of fixed blades, a plurality of removable blade assemblies removably coupled to the body, and a second plurality of cutting elements secured to the plurality of removable blade assemblies, each cutting element of the second plurality of cutting elements exhibiting an aggressiveness that is less than an aggressiveness of each cutting element of the first plurality of cutting elements. A method of forming an earth-boring tool includes forming a body and a plurality of fixed blades extending from the body, securing a first plurality of cutting elements to the plurality of fixed blades, removably coupling at least one removable blade assembly to the body, and securing a second plurality of cutting elements to the at least one removable blade assembly.
Bibliography:Application Number: US202117339657