高粘性流出油回収移送時の管摩擦抵抗の低減

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  • Reduction of Pressure Drop through Pipe during Transfer of Viscous Spilled Oils
  • コウネンセイ リュウシュツユ カイシュウ イソウジ ノ カン マサツ テイコウ ノ テイゲン

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This paper shows coefficients of skin friction of high-viscosity oil flow in pipes. The pressure drop from entrance to exit of the pipe was measured, and the coefficient of skin friction was obtained. The coefficients of skin friction of high-viscosity oil flow in pipes are very large. To reduce the pressure drop, oil was injected into the water flow and then the coefficient of skin friction in pipe was investigated. Using the obtained coefficient of skin friction, the oil flow rate in a pipe is calculated. The oil flow rate that was obtained from oil injection into water was compared to the case of oil only flow and an annular water injection method (AWI) . Flowing viscous oil injection into water current is a simple method and the coefficient of skin friction in the pipe can thus be reduced.

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