Light Hydrocarbons for Petroleum and
Gas Prospecting
V.T. Jones, III, M.D. Matthews and D.M. Richers
Geochemical Remote Sensing of the Subsurface. Edited by M.Hale
Handbook of Exploration Geochemistry, Vol. 7 (G.J.S. Govett, Editor)
©1999 Elsevier Science B.V. All rights reserved
Preprint
TABLE 5-VII
Composition range
of soil-gas hydrocarbon over different reservoir types
|
|
C1/ Cn |
C1/C2 |
1000 x C3/C1 |
|
Dry gas |
95-100 |
20-100 |
2-20 |
|
Gas condensate or oil and gas |
75-95 |
10-20 |
20-60 |
|
Oil |
5-50 |
4-10 |
60-500 |