TY - JOUR
T1 - Thermohydraulic modeling in transient state for evaluation of pipeline shutdown and restart procedures
AU - Bustamante-Chaverra, Carlos Andrés
AU - Nieto-Londoño, César
AU - Buendía-García, Jhon Anderson
AU - Novoa, Luz Angela
AU - García, Joao
AU - Viviescas, Geoffrey
N1 - Funding Information:
The work done was with the collaboration of professionals from the Rheology and interfacial phenomena laboratory at the Ecopetrol, ICP - Innovation and Technology Center.
PY - 2019
Y1 - 2019
N2 - In order to study shutdown and re-start in heavy crude oil pipelines, a model was developed that simulates, in a transient state, the behavior of pressure, flow and temperature variables, averaged over the cross-sectional area and as a function of time and the axial coordinate. The model was validated with actual operational data from a test case. Results obtained by the model developed were compared with available operating data for an industrial heavy crude oil pipeline, demonstrating good prediction of the pressure distribution and temperatures in the steady state. In the case of pressure boundary condition, the operating flow in the steady state was underestimated with respect to the reference data, thus, it is necessary for applications where greater precision in the results is required and to improve the calculation model for the friction coefficient and its relation to temperature. Also, the governing equations are converted to dimensionless expressions in order to obtain the dimensionless numbers relevant to the re-start operation for crude oil pipelines.
AB - In order to study shutdown and re-start in heavy crude oil pipelines, a model was developed that simulates, in a transient state, the behavior of pressure, flow and temperature variables, averaged over the cross-sectional area and as a function of time and the axial coordinate. The model was validated with actual operational data from a test case. Results obtained by the model developed were compared with available operating data for an industrial heavy crude oil pipeline, demonstrating good prediction of the pressure distribution and temperatures in the steady state. In the case of pressure boundary condition, the operating flow in the steady state was underestimated with respect to the reference data, thus, it is necessary for applications where greater precision in the results is required and to improve the calculation model for the friction coefficient and its relation to temperature. Also, the governing equations are converted to dimensionless expressions in order to obtain the dimensionless numbers relevant to the re-start operation for crude oil pipelines.
KW - Correlations
KW - Extra-Heavy crude
KW - Heavy crude
KW - Light crude
KW - Modeling
KW - Pipeline
KW - Re-start
KW - Simulation
KW - Transient state
KW - Viscosity
UR - http://www.scopus.com/inward/record.url?scp=85077394652&partnerID=8YFLogxK
U2 - 10.29047/01225383.179
DO - 10.29047/01225383.179
M3 - Artículo
AN - SCOPUS:85077394652
SN - 0122-5383
VL - 9
SP - 53
EP - 60
JO - CTyF - Ciencia, Tecnologia y Futuro
JF - CTyF - Ciencia, Tecnologia y Futuro
IS - 2
ER -