The limitations of the cloud point measurement techniques and the influence of the oil composition on its detection
In the petroleum industry, cloud points are one of the main guides to evaluate the wax
precipitation potential of a fluid. The planning of the exploration of a reservoir or the design …
precipitation potential of a fluid. The planning of the exploration of a reservoir or the design …
Wax phase equilibria: develo** a thermodynamic model using a systematic approach
Reservoir hydrocarbon fluids contain heavy paraffins that may form solid phases of wax at
low temperatures. Problems associated with wax formation and deposition are a major …
low temperatures. Problems associated with wax formation and deposition are a major …
Reliable wax predictions for flow assurance
A number of wax models currently in use by the oil industry are based on parameters that
were empirically determined to match available data for black oils. These data are often not …
were empirically determined to match available data for black oils. These data are often not …
Cloud points: can we measure or model them?
A Hammami, J Ratulowski… - Petroleum Science and …, 2003 - Taylor & Francis
The terminology “cloud point” has been traditionaly adopted by the American Society for
Testing and Materials (ASTM) D2500 to refer to the temperature at which “cloudiness” of a …
Testing and Materials (ASTM) D2500 to refer to the temperature at which “cloudiness” of a …
Modeling wax deposition in pipelines
A multicomponent liquid-wax hydrodynamic model that incorporates phase equilibria and a
full non-Newtonian behavior is proposed. In this model, molecular diffusion through the …
full non-Newtonian behavior is proposed. In this model, molecular diffusion through the …
Measurement and Prediction of the Phase Behavior of Wax−Solvent Mixtures: Significance of the Wax Disappearance Temperature
This study investigates the phase behavior of wax− solvent mixtures below their liquidus
temperature, particularly between the wax disappearance temperature (WDT, recorded …
temperature, particularly between the wax disappearance temperature (WDT, recorded …
Liquid–solid equilibria under high pressure of tetradecane+ pentadecane and tetradecane+ hexadecane binary systems
The crystallization temperatures of two binary systems–tetradecane+ hexadecane and
tetradecane+ pentadecane–were measured under high pressure up to 100MPa using a …
tetradecane+ pentadecane–were measured under high pressure up to 100MPa using a …
A new predictive UNIQUAC for modeling of wax formation in hydrocarbon fluids
A new UNIQUAC based predictive local composition model is here compared against
predictive Wilson and predictive modified UNIQUAC on their abilities to predict wax …
predictive Wilson and predictive modified UNIQUAC on their abilities to predict wax …
Solid− liquid− vapor phase boundary of a north sea waxy crude: measurement and modeling
The wax appearance temperature as well as the liquid vapor phase boundary were
measured on two condensate gases from a high-temperature− high-pressure field in the …
measured on two condensate gases from a high-temperature− high-pressure field in the …
High pressure solid–liquid phase equilibria in synthetic waxes
A high pressure apparatus which rests on a polarizing microscope has been designed to
determine visually the liquid–solid phase transitions in complex waxy systems. The …
determine visually the liquid–solid phase transitions in complex waxy systems. The …