• Document: Rotaflex Long Stroke Pumping Units. Proven technology for deep, challenging, and high-volume wells
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Rotaflex® Long Stroke Pumping Units Proven technology for deep, challenging, and high-volume wells Weatherford Comprehensive Solution Rotaflex® Long Stroke Pumping Units Contents Introduction The Right Technology for Tough Jobs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Advantages of Long-Stroke Pumping Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Simple to Install, Easy to Maintain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Safety Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Parts Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Rotaflex® Long Stroke Pumping Unit Pumping Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Gear Reducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Components Top Drum Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Top Drum Assembly Crown Hood. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Top Sprocket Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Counterweight Box Assembly Guide Wheel Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Counterweight Box Assembly, Carriage View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Carriage Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Guide Wheel Assembly, Left-Hand Counterweight Box . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Guide Wheel Assembly, Right-hand Counterweight Box . . . . . . . . . . . . . . . . . . . . . . . . . 20 © 2014 Weatherford. All rights reserved. 1 Introduction Introduction The Right Technology for Tough Jobs Whether you are working with a deviated well or need Going Beyond Conventional Pumping Units maximum power for heavy oil, you want the best possible The Rotaflex unit offers increased flexibility with a unique performance and greatest ease of maintenance. The and field-proven mechanical reversing mechanism, virtually Weatherford Rotaflex® unit—a long-stroke pumping system no minimum speed, and longer strokes that result in more for sucker-rod pumping—reduces both your energy costs complete barrel fillage. In fact, well-analysis reports show and well-workover time compared to conventional units. In the Rotaflex unit repeatedly performing at up to 61.2 percent deep, deviated, horizontal, high-liquid-volume, gaseous, or efficiency level, and dynamometer card results are similar to otherwise challenging wells, the Rotaflex unit can lift more

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