Coiled tubing replaces sucker rods in beam pump test

A test in Argentina indicated that coiled tubing could replace sucker rods for reciprocating a subsurface pump and at the same time function as the production string on a shallow, marginal, or low-producing oil well.This type of pumping system has the potential to save costs because of the smaller wellbores required and the likelihood of less failures than sucker rods and sucker-rod connections.Coiled tubingCoiled tubing has been used in the oil industry for a number of years, primarily for well service work, although some long-term downhole installations such as velocity strings are also in use.In 1995, an idea was developed, based on hydraulic calculation, that for low volumes and shall...

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