COUPLINGS FOR WELL PUMPING COMPONENTS

A coupling for joining a downhole pump to a sucker rod string is disclosed. The coupling includes a core having a first end, a central portion, and a second end. The first end and the second end each have an end surface. The first end tapers linearly inwards from the central portion to the first end...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Diane M. NIELSEN, William D. NIELSEN JR
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	ALLOYS BLASTING CHEMISTRY EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FERROUS OR NON-FERROUS ALLOYS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING METALLURGY MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS
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Beschreibung
Zusammenfassung:	A coupling for joining a downhole pump to a sucker rod string is disclosed. The coupling includes a core having a first end, a central portion, and a second end. The first end and the second end each have an end surface. The first end tapers linearly inwards from the central portion to the first end surface. The second end has a rounded edge along the second end surface. The coupling is made from a spinodally-hardened copper-nickel-tin alloy and has a sliding coefficient of friction of less than 0.4 when measured against carbon steel. Se divulga un acoplamiento para unir una bomba de fondo de pozo a una sarta de biela de ventosa; el acoplamiento incluye un núcleo que tiene un primer extremo, una porción central, y un segundo extremo; el primer extremo y el segundo extremo tienen, cada uno, una superficie de extremo; el primer extremo se ahúsa linealmente hacia dentro desde la porción central a la superficie de primer extremo; el segundo extremo tiene un borde redondeado a lo largo de la superficie de segundo extremo; el acoplamiento está hecho de una aleación de cobre-níquelestaño espinodalmente endurecida y tiene un coeficiente deslizante de fricción de menos de 0.4 cuando se mide contra acero al carbono.