Downhole drill bit chassis

A drill bit assembly, of a type useful for forming a borehole in the earth, may comprise a chassis, separate from a drill bit, housed within a cavity of the drill bit. A drill string may be secured to the drill bit and retain the chassis within the cavity. This chassis may comprise two pairs of inte...

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Bibliographic Details
Main Author Marshall, Jonathan D
Format Patent
LanguageEnglish
Published 03.03.2020
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:A drill bit assembly, of a type useful for forming a borehole in the earth, may comprise a chassis, separate from a drill bit, housed within a cavity of the drill bit. A drill string may be secured to the drill bit and retain the chassis within the cavity. This chassis may comprise two pairs of interfacing exchange surfaces, a first pair disposed between the chassis and the drill string and a second pair disposed between the chassis and the drill bit. Both of the first pair are annular in shape and fixed together independent of rotational orientation. The second pair are fixed together in a specific rotational orientation. These pairs of interfacing exchange surfaces may allow for various types of signals, such as electrical, hydraulic, optical or electromagnetic for example, to be exchanged and passed through the chassis or to electronics disposed on the chassis.
Bibliography:Application Number: US201815944605