Analysing the composition and properties of gas and condensate products of Thien Ung field
The article presents the analysis results for the composition and properties of gas and condensate samples collected from Thien Ung field, as compared with the properties of other gas and condensate products in Vietnam. The largest component of natural gas from Thien Ung field is methane with the content ranging from 75.231 to 76.402 %mol. The remaining hydrocarbon components in Thien Ung natural gas make up from 7.083 to 7.123 %mol, in which liquid hydrocarbon content (C6+) is very low, from 0.172 to 0.226 %mol. Thien Ung natural gas is a
sweet gas with H2S content ranging from 0.3 to 1.5ppm.
The density of Thien Ung condensate at 15 oC is 0.7743 g/ml, so this is an average condensate compared to other condensates that have been produced in Vietnam. The mass yield of naphtha distillation cut from Thien Ung condensate is high (61.39%mass). Aromatic hydrocarbon
content is at average level with common characteristics of crude oils and condensates in Vietnam (low contents of sulfur, nitrogen, resin and asphaltene; trace metal nickel and vanadium contents are also very low).
The results of this study provide additional data to the Vietnam oil and gas properties database system, which will facilitate the selection and design of suitable technologies for effective extraction and use of the domestic oil and gas resources of Vietnam.
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