LONG-STROKE DEEP-WELL PUMPING UNIT Russian patent published in 1996 - IPC

Abstract RU 2066790 C1

FIELD: operation of oil wells; drives of oil-well sucker rod pumps. SUBSTANCE: tractive member is made in form of rope 6. Drum 3 and guide rollers 7 are mounted in hermetic housing 1 which is movably sealed over shaft of drum 3 and wellhead. Distance between axes of drum 3 and guide rollers 7 is more than five diameters of drum 3 which is necessary for multilayer self- laying of rope 6 on drum 3. EFFECT: enhanced reliability. 2 dwg

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RU 2 066 790 C1

Authors

Zagorskij Valerij Kuprijanovich

Grib Vitalij Semenovich

Dates

1996-09-20—Published

1993-04-12—Filed