Hydraulic Rod Pumps, International


Today's volatile energy markets have prompted producers to demand the latest available technologies, higher electrical efficiencies and more reliable products from vendors across the board. Requests of this nature have become the new standard throughout today's E&P supplier marketplace, as producers prepare for an unpredictable revenue stream. Artificial lift is the primary tool for generating revenue and the largest area of expense for producers, so it has become the primary focus for maximizing efficiency and equipment longevity.
Ultra long-stroke sucker rod pumping units entered the scene in the 1970's, as prototype experiments. They've emerged in the last decade as one of only a few quantum leaps in artificial lift technology throughout the entire history of sucker rod lift. This technology has quickly become the new standard, frequently chosen to solve
problems, lift more fluid, reach out farther horizontally or go vertically deeper than any conventional beam unit can go. How is this done?
Slower traveling speeds = reduced rod string fatigue.
Near-fixed traveling speeds = lower rod string compression.
Slower strokes per minute = reduced traveling/standing valve wear.
Longer stroke lengths = higher compression ratios, which helps reduce gas locking.
Longer stroke lengths = better mechanical efficiency (stroke vs. stretch ratio).
Longer stroke lengths = longer tubing life due to longer coupling-to-tubing wear patterns.
Ability to lift larger pump plungers = higher volume rate capacities.

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