Page 118 - Hydrocarbon Exploration and Production Second Edition
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Reservoir Description 105
Figure 6.8 A fractured reservoir.
fold crest
fold
trough
anticline
syncline
Figure 6.9 Fold terminology.
6.1.3. Diagenesis
The term diagenesis describes all chemical and physical processes affecting a sediment
after deposition. Processes related to sub-aerial weathering and those which happen
under very high pressures and temperatures are excluded from this category.
The latter are grouped under the term metamorphosis. Diagenesis will alter the
geometry and chemistry of the pore space as well as the composition of the rock.
Many of these changes are controlled by the oxidising potential (eH) and the
