It also calculates energy consumption, electricity cost per barrel of produced fluid, and can model low or high slip prime movers. The program ensures that the fiberglass rods are not in compression and avoids designs with excessive rod stretch. When designing a fiberglass rod string RODSTAR calculates the length of the bottom steel section and selects the appropriate diameter and length of the fiberglass portion. When designing a steel rod string, RODSTAR "decides" what rod taper is needed and automatically calculates the length of each section for equal stress loading. RODSTAR can automatically design steel or fiberglass rod strings. A context sensitive expert help system warns the user of rods that need slim hole couplings, pump sizes that are too big for the tubing, pumping speeds that are too high, or designs that may result in severe under travel. RODSTAR includes a large pumping unit data base and is completely menu driven. Although expert users can enter their own designs, taking advantage of the program's expert capabilities minimizes the time and expertise required to design rod pumping systems.
#Rodstar trial
Unlike conventional rod pump system design programs that rely on a trial and error approach, RODSTAR can automatically calculate the strokes per minute (spm), plunger size, and rod siring design to obtain the "target" production entered by the user. RODSTAR can simulate steel or fiberglass rods and any pumping unit geometry including long stroke non-beam pumping units. RODSTAR combines expert rod pumping knowledge with state-of-the-art wave equation and pumping unit modeling algorithms.
#Rodstar simulator
A "smart" predictive computer simulator of rod pumping systems called RODSTAR has been developed.
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