There are numerous oil and gas wells around the world that have not been optimized to achieve an objective rate efficiently. Past experience has shown that large amounts of money have been wasted on stimulating the formation when the well's producing capacity was actually being restricted because the tubing or flow line size was too small. Another example of errors in completion design is to install tubing that is too large. This often happens on wells that are expected to produce at high rates. It has been shown that this practice not only wastes money on oversized equipment, but tubing that is too large can actually reduce the rate at which a well will flow. Thus can cause the well to load up with liquids and die, which necessitate; the early installation of artificial lift equipment. In fact, many wells may have been completed in such a manner that their maximum potential rate cannot be achieved.
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