A unified approach to asphaltene precipitation: Laboratory measurement and modeling
- Marathon Oil Co., Littleton, CO (United States)
A unified approach to evaluation of asphaltene precipitation based on laboratory measurement and modeling is presented. This approach uses an organic deposition cell (ODC) for measuring asphaltene-dropout onset conditions. Asphaltene precipitation was detected by changes in optical fluorescence, electrical conductance, and visual observation. A series of experiments measured the effects of changing pressure,m temperature, and composition on asphaltene precipitation. A fully compositional vapor/liquid/solid (V/L/S) mathematical model completed by analysis by matching the experimental results. The authors then used the model to forecast asphaltene precipitation under a variety of production scenarios, including response to gas-lift operations,and to evaluate the possible location of a tar mat.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 118770
- Journal Information:
- JPT, Journal of Petroleum Technology, Vol. 47, Issue 9; Other Information: PBD: Sep 1995
- Country of Publication:
- United States
- Language:
- English
Similar Records
Molecular thermodynamics of asphaltene precipitation in reservoir fluids
Molecular Thermodynamics of Asphaltene Precipitation in ReservoirFluids