The extreme environmental conditions typically encountered in petroleum operations lead to a number of production problems. The temperature differential between the hot formation fluids and the cool surroundings promote particle formation and deposition of paraffinic compounds. These solids can build up inside flowlines and significantly decrease production rates. A framework for predicting and analyzing phase transitions and growth kinetics of solids formed in hydrocarbons is established. The resulting semi-empirical model is used to simulate multiphase transport of waxy crude oil through integration with a commercial steady state pipeline simulation package. The wax model is a semi-empirical representation of the wax deposition phenomena. The model incorporates the effects of diffusion and shear through the wax deposition tendency. The key parameters are first measured in a laboratory flow loop.
Modeling of multiphase wax deposition
1999
Seiten
Aufsatz (Konferenz)
Datenträger
Englisch
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