Phase Equilibria of Condensate and Natural Gas

Sarunya Promkotra

doi:10.4028/www.scientific.net/AMR.746.529

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 746Phase Equilibria of Condensate and Natural Gas

Phase Equilibria of Condensate and Natural Gas

Abstract:

Condensate and natural gas from a gas field in the northeast of Thailand are examined for their physical and chemical properties, and phase behaviors referring to phase equilibria. The physical properties of condensate are analyzed based on API gravity, density, Reid vapor pressure, true vapor pressure, pressure and temperature, viscosity and specific energy. Chemical components of natural gas are grouped depending on the amount of organic hydrocarbons which are methane, light hydrocarbons, heavy hydrocarbons, aromatic and cyclic compounds and non-hydrocarbon contents in the mole per cent of 97.15, 1.16, 0.22, 0.019 and 1.50, respectively. Pristane and phytane ratio is 1.73 which refers to an oxidizing environment during the deposition of the petroleum reservoir. Phase behavior of condensate is found only one phase, liquid phase at 15°C and 101.327 kPa, which indicates the critical temperature of 592.13 K and the critical pressure of 2,372.96 kPa. However, natural gas can be separated in two phases, vapor and liquid phases. The results show that the cricondentherm and cricondenbar of natural gas are 326.36 K and 1,295.28 kPa, respectively. These results can be useful for controlling and managing condensate and natural gas.

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Periodical:

Advanced Materials Research (Volume 746)

Pages:

529-532

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.746.529

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Online since:

August 2013

Authors:

Sarunya Promkotra

Keywords:

Condensate, Natural Gas, Phase Behavior, Phase Equilibria

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