... bromide, and is thermally stable. The friction pressure study utilized fresh water and several brines, including 7% KCl, 9.7 ppg NaCl and 11.4 ppg CaCl 2 . The fresh water systems were pumped through 1½ inch diameter coiled tubing and straight pipe. For the heavier brines, a small scale flow loop...

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... Abstract As coiled tubing is presently utilized for a multitude of projects in the field, the necessity of estimating the friction pressure of the working fluids in the reeled portion of the coiled tubing string becomes extremely important. Past authors have shown the significant difference...

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