Sucker rod coupling material solves downhole wear economically ///

The cost of working over unconventional wells runs into the hundreds of millions of dollars per year. Therefore, there is a definite financial need to mitigate workovers as much as possible. The frequency of workovers conducted during the course of operations varies from operator to operator. Generally, a major workover may be required once every 12–18 months. However, there are also problematic wells that need to be worked over much more frequently. A significant number of shale wells in the Bakken fail approximately every six to nine months. Half of the failures in these wells are related to either tubing or sucker rod coupling failures, caused primarily by wear damage resulting from couplings contacting the inner tube wall.

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