TECHNOLOGY Coiled tubing facilitates deep underbalanced workover

03/31/1997
Larry S. Adams Chevron USA Production Co. Midland, Tex. Charles C. Overstreet CUDD Pressure Control Inc. Houston Coiled tubing is being run into the well to drill out scale A recent workover shows the technical capability and cost effectiveness of coiled tubing for cleaning out scale in a 22,611-ft, low pressure, high-temperature gas well. The well, operated by Chevron USA Production Co., is in the Fort Stockton Gas Unit 5-1 Gomez (Ellenburger) field, in West Texas. The development of reliable 100,000-psi minimal yield strength coiled tubing was a major factor that allowed this work to succeed. The methods demonstrated by this workover are becoming a ...
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