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Unformatted text preview: green or orange. This fluid has an initial GOR of 2000 scf/STB, 51.2 API and a medium orange color. So, it is a volatile oil. 5-8 The C7+ fraction of the fluid is 14.91%, which is between 12.5-20%. The Bo is 2.6 res bbls/STB, larger than 2. All characteristics indicate it is a volatile oil. 5-13 It is a volatile oil. Its API (46.6), GOR (2906 scf/STB), C7+ fraction (13.07%), Bo (2.504 res bbs/STB), and orange brown color all fit in the characteristics of volatile oils (API>40, GOR 2000-3300, C7+ 12.5-30%, Bo>2, orange color). 5-15 Because there is no oil produced at the surface, it is a dry gas. 5-17 Because the GOR and API both increase with time, it is classified as a retrograde gas. Wet gases do not have its GOR and API change during production....
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- Spring '11