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A well in the Oklahoma City Field (Oklahoma) has a sucker rod string consisting of 4600 ft of ¾ in. rods and 1950 ft of 7/8 in. rods. The plunger diameter is 1.5 in., polished rod stroke length is 64 in., and average specific gravity of the well fluid is 0.825. At what pumping speed will polished rod stroke length and effective plunger stroke length be equal if the tubing is anchored?
Note: Except where otherwise indicated, it can be assumed, in the above problems, that pump setting depth, pumping fluid level, and net lift are identical, and that tubing pressure is negligible. Also any missing data can be assumed.
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