Oligocene, Gulf Coast, Gulf of Mexico (16)
Comments on Geologic Parameters
16 Rock Mineralogy:
Brine chemistry in the Gulf Coast basin is relatively well known because of the brine of hydrocarbon production. We have selected a high-quality, formation-specific data set (Macpherson, 1992); other data are available (for example, Kreitler and Richter, 1986; Kreitler and others, 1988).
16 Table:
| Calcite cement | Quartz cement | Dolomite/ ankeritecement | Kaolinite cement | Detrital feldspar | Percent K_feldspar | % anorthite | |
| Average of 1000 reservoir sands | 4.7 | 2.6 | 0.6 | 1 | 27 | 30 | 20 |
16 Reference:
Land, L. S., and Macpherson, G. L., 1992, Origin of saline formation waters, Cenozoic section, Gulf of Mexico sedimentary basin: American Association of Petroleum Geologists Bulletin v. 76, p. 1344–1362.
