FIELD: engines and pumps.
SUBSTANCE: invention relates to self-compacting package of asymmetric chevron seals, which serves for installation in wellhead sealing gaskets of moving polished rod. Package consists of at least two asymmetric collars installed in case of wellhead gland, support and pressure sleeve with self-sealing gate effect with minimum friction force in area of contact sealing edges asymmetric cups with surface of the polished rod, and is able to seal moving polished rod without axial compression package seals, with multiple increase of service life of seals without replacement, increasing service life of polished rod, reduction of power consumption for pumping drive.
EFFECT: prevention of oil spills, environmental pollution and prevention of frequent stops process of oil production with mechanised method with application of sucker rod pumps.
1 cl, 2 dwg
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