Case History Paraf? n deposits In the Oklahoma Atoka formation, ? owing gas wells had paraf? n plugging issues. One operator used continuous chemical injection of solvents and crystal modi? er down the annulus to treat the problem. However, any cessation of the chemical treatments resulted in immediate plugging of the tubing and ? owlines with wax. Even with the chemical treatments, the operator had to perform coiled tubing drill outs a

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