02065nab a2200217 4500 20260520004415.0 260224s2012 xxu ing Inglés Experimental and Analytical Investigation of the Cool-Down Behavior of an Insulated Pipe Assembly Under Subsea Conditions jun. 2012 25/01/2013 ; 25/01/2013 14 p. ; 602-616 Transcripción 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. 2 SPE Journal 17 ARTICULO Rivas-Cardona, A. 52940 Marotta, E. 52941 Whitsitt, E. 52942 187549 187549 0 0 0 0 255368 BAAB BAAB 2026-03-06 200059672 0 200059672 2026-03-06 00:17:28 2026-03-06 ARTICULO