DOWNHOLE TOOL WITH LONGITUDINALLY OFFSET FLUID PORTS

A rotational tool includes a shaft having a central fluid conduit within a housing, and one or more fluid conduits between the shaft and housing. The one or more fluid conduits are radially offset from the central fluid conduit. The shaft includes a plurality of fluid ports that extend radially and...

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Bibliographic Details
Main Authors Su Zhenbi, Yang Baozhong, Dodge Jeffrey N
Format Patent
LanguageEnglish
Published 30.03.2017
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 rotational tool includes a shaft having a central fluid conduit within a housing, and one or more fluid conduits between the shaft and housing. The one or more fluid conduits are radially offset from the central fluid conduit. The shaft includes a plurality of fluid ports that extend radially and provide fluid communication between the one or more fluid conduits and the central fluid conduit. The fluid ports are longitudinally offset along the shaft to distribute any weakening of the shaft by the introduction of the fluid ports.
Bibliography:Application Number: US201615279630