DOWNHOLE MILLING CUTTING STRUCTURES

Systems, tools, and methods include using a milling assembly with a mill having multiple, different types of cutting element inserts. A gage region of the mill includes a first type of cutting element insert, and a shoulder region of the mill includes a second type of cutting element insert. One cut...

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Bibliographic Details
Main Authors Su Zhenbi, Chellappa Sudarsanam, Palani Vijayakumar, Hu Jianbing, Burdett Timothy Andrew, Glass Christopher
Format Patent
LanguageEnglish
Published 05.04.2018
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
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Summary:Systems, tools, and methods include using a milling assembly with a mill having multiple, different types of cutting element inserts. A gage region of the mill includes a first type of cutting element insert, and a shoulder region of the mill includes a second type of cutting element insert. One cutting element insert may include chip-breaking features, and the other may be a shear or gouging cutting element.
Bibliography:Application Number: US201715719672