000			02065nab a2200217 4500
005			20260520004415.0
008			260224s2012 xxu ing
041			_aInglés
245	0	0	_aExperimental and Analytical Investigation of the Cool-Down Behavior of an Insulated Pipe Assembly Under Subsea Conditions
260			_a _b _cjun. 2012
270			_a25/01/2013 ; 25/01/2013
300			_a14 p. ; 602-616
520			_aTranscripción del resumen del autor: An experimental investigation was conducted to determine the cool-down behavior of an insulated pipe assembly under subsea conditions, and an analytical model was developed to predict the cool down of the assembly. The insulated pipe assembly consisted of a straight pipe attached to a production tee and a production elbow, and this was coated with 3 in. of thermal insulation. The pipe assembly was tested in a chamber that can simulate subsea conditions (low temperature, high pressure). The analytical model was the solution to a 1D transient heat-conduction problem of a three-layer solid cylinder. The analytical model was first verified with the use of available commercial software, and then validated against experimental data. Results showed a root-mean-square deviation (RMSD) of less than 3.8°F between the analytical model and the experimental data at the location with a geometry similar to that for which the analytical model was developed. It was found that the h values calculated from experimental data were significantly smaller than the ones calculated from empirical correlations. However, this variation resulted only in a slight difference in the cool-down temperatures. From the validation of the analytical model, it was concluded that this model can predict cool-down temperatures as a function of time in insulated pipes during shut-in operations.
581			_a2
773	0		_tSPE Journal _g17
942			_cARTICULO
100	1		_aRivas-Cardona, A. _952940
100	1		_aMarotta, E. _952941
100	1		_aWhitsitt, E. _952942
999			_c187549 _d187549