METHOD FOR CONTROLLING DEEP PUMP DEVICE OF OIL WELL

FIELD: oil extractive industry. ^ SUBSTANCE: method includes control of changes of forces in point of support of pump bars, measuring position of polished rod, determining its extreme upper and lower positions, setting a set-point for dynamic level of liquid in well shaft higher than pump receiving...

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Bibliographische Detailangaben
Hauptverfasser:	MUKOVOZOV V.P, KOSTYLEV A.V, ZJUZEV A.M
Format:	Patent
Sprache:	eng ; rus
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 extractive industry. ^ SUBSTANCE: method includes control of changes of forces in point of support of pump bars, measuring position of polished rod, determining its extreme upper and lower positions, setting a set-point for dynamic level of liquid in well shaft higher than pump receiving level and periodical disconnecting of device for collecting liquid. Values of forces are fixed at moments of passing extreme points until and after change of sign of movement direction for rod. On basis of fixed values of forces average values of forces are calculated in extreme upper and extreme lower dead points. Then level of liquid is determined from given formula, compared to value of set-point and from received deviation on given time of cycle time of pause for collecting liquid in well shaft is corrected. ^ EFFECT: higher productiveness and reliability. ^ 1 dwg