Fluid flow in sedimentary basins: A geologist's perspective

Chapman R.E. (1987) Fluid flow in sedimentary basins: A geologist's perspective. Geological Society Special Publication, 34 3-18. doi:10.1144/GSL.SP.1987.034.01.02

Author Chapman R.E.
Title Fluid flow in sedimentary basins: A geologist's perspective
Journal name Geological Society Special Publication   Check publisher's open access policy
ISSN 0305-8719
Publication date 1987-01-01
Sub-type Article (original research)
DOI 10.1144/GSL.SP.1987.034.01.02
Open Access Status Not yet assessed
Volume 34
Start page 3
End page 18
Total pages 16
Subject 2212 Ocean Engineering
2312 Water Science and Technology
1907 Geology
Abstract Water begins to flow from higher-energy to lower-energy positions as soon as sediment begins to accumulate in a new sedimentary basin, and flow continues during the sedimentary development of the basin. Water expelled by compaction from the compactible less-permeable beds displaces water in the less-compactible more-permeable beds. Compaction flow also causes subsidence that contributes to the sedimentary development of a basin. The pattern of flow is determined by the stratigraphy. In transgressive sequences, it is downwards in mudstone to the basal permeable unit and then lateral towards the land of the time. In regressive sequences, it is upwards and downwards in mudstones towards the intercalated sandstones and then lateral in these towards the land. In compacting sequences of alternating sandstones and mudstones, the sandstones drain distinct isolated hydraulic units that are related to the stratigraphy. When a sedimentary basin ceases to accumulate sediment and compaction has reached equilibrium, the flow patterns change and the main energy comes from elevation of the intake areas. In rift basins the main source of compaction water is the thick mudstone in the post-unconformity-disconformity sequence. Abnormal pressures in the pre-unconformity-disconformity sequence indicate lack of flow in this part of the basin.
Q-Index Code C1
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
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