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We propose a cost-efficient diagnostic method for profiling frictional pressure loss in a wellbore using the existing data of conventional pressure–temperature logging, along with well specifications ...and flow rates. Frictional pressure loss is profiled by decomposing the measured pressure into wellhead pressure, inertial, frictional, and gravitational components. Through the application of this method to actual production and testing wells, anomalies associated with scaling, variations in hydraulic diameter, and the presence of a multistage cementing tool were successfully identified, including their temporal variations. The accumulation of solid particles was inferred from the observed increase in frictional pressure loss near the end of the buildup section of well inclination.続きを見る
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Mendeley出力
