Steel ball sucker rod centralizer

The utility model relates to a steel ball type oil pumping rod centralizer, belonging to an oil pumping rod centralizer class of an oil field machine. The steel ball type oil pumping rod centralizer is provided with a connecting rod whose two ends are provided with screw holes. Ball seat holes are u...

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Bibliographic Details
Main Authors HUIJUN JI, XINGYE LI
Format Patent
LanguageEnglish
Published 23.12.1998
Edition6
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:The utility model relates to a steel ball type oil pumping rod centralizer, belonging to an oil pumping rod centralizer class of an oil field machine. The steel ball type oil pumping rod centralizer is provided with a connecting rod whose two ends are provided with screw holes. Ball seat holes are uniformly arranged on the circumferential directions of the upper part and the lower part of the connecting rod. Steel balls are arranged in the ball seat holes. Steel ball holding racks are sheathed on the outer annular circumferences of the ball seat holes. The steel ball type oil pumping rod centralizer has the advantages that the steel ball type oil pumping rod centralizer is not easily abraded, and the steel ball type oil pumping rod centralizer has durability and good flexibility. The steel ball type oil pumping rod centralizer not only can be suitable for being used for a vertical well; meanwhile, the steel ball type oil pumping rod centralizer can be suitable for being used for an inclined well.
Bibliography:Application Number: CN1997221606U