Distance increasing device for sucker rod

The utility model relates to an oil pump stroke increaser, in particular to a mechanical device for increasing stroke of an oil pumping pole of oil well. In the technical proposal, a mechanical structure to the opposite of a slide block for controlling the open and close states of an anchor head cla...

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Bibliographic Details
Main Authors KELONG YU, SUJUN YI, LIJUN QIU
Format Patent
LanguageEnglish
Published 30.06.2004
Edition7
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 an oil pump stroke increaser, in particular to a mechanical device for increasing stroke of an oil pumping pole of oil well. In the technical proposal, a mechanical structure to the opposite of a slide block for controlling the open and close states of an anchor head clamp block of the oil pumping pole. The structure greatly increases the operation stroke of the anchor head clamp block, so as to reduce the technical difficulty in anchor locking or tripping, simplify the assembly procedures, and reduce the production technological requirements.
Bibliography:Application Number: CN2003213434U