FLEXIBLE PULLING MEMBER OF IMMERSED PUMPING UNIT

FIELD: oil production industry. SUBSTANCE: this relates to oil recovery by plunger-operation method, particularly in deep wells. This ensures increased lifting capacity, prolonged service life and improved fatigue strength of flexible pulling member of immersed pumping unit. Device is made up of at...

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Bibliographische Detailangaben
Hauptverfasser:	AGEEV L.M, NOVIKOV A.G
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	FIELD: oil production industry. SUBSTANCE: this relates to oil recovery by plunger-operation method, particularly in deep wells. This ensures increased lifting capacity, prolonged service life and improved fatigue strength of flexible pulling member of immersed pumping unit. Device is made up of at least one metal band. Band is made with continuous longitudinal curvature of radius Rc lying within , where h - thickness of band, mm; E -modulus of normal elasticity of band, kgf/sq.mm; sigma0,2 - yield point of band material, kgf/sq. mm; l - full length of flexible pulling member, mm. EFFECT: higher efficiency. 1 cl, 3 dwge