COMPUTER ANALYZED TORQUE MONITORING (CATM) – POWER TONGS
With a variety of issues that could occur while making up an array of different connections on the market, at ProTorque it is our belief that all tubular connections should use computer analysis. CATM delivers a graphical representation that allows us to interpret and prevent damaged or incorrectly made up connections from entering the wellbore. It helps to ensure peak performance and proper isolation for your packer systems. This isolation reduces and helps to eliminate leaks during the fracturing (FRAC) process, in turn mitigating environmental and unforeseen production risks.
1 – 8000 Hz
Combined delta torque and delta time
Mfg. specifications or local calibration. Shunt calibration with automatic “drift” tracking.
Electronics < .5 ms Hydraulic dump valve - typically 10 – 30 ms.
Average = optimum torque + – 1% Standard deviation < 2% under normal operating conditions.
Computer, 5 – 50°C (40 – 122°F) Junction box, minus 30 – 80°C (minus 22 -180°F)
Max error (% of full scale) = sqrt [Local force standard error2 + arm length error2 + 0.152] Typically less than 1%.
Max error = + – one pulse of turns counter.
Max error (% of F.S.) = sqrt [pressure standard error2 + 0.152] Typically less than 1%.
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