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Overpressure preventing quartz cementation? - A reply

Stricker, S.; Jones, S.J.; Sathar, S.

Overpressure preventing quartz cementation? - A reply Thumbnail


S. Stricker

S. Sathar


Chemical compaction and the relative importance of the pressure dissolution and illite-mica induced dissolution (IMID) models have remained a contentious issue, as is the role played by stress in chemical compaction. This paper offers further support and evidence as discussed in Stricker et al. (2016b), focusing on the reservoir quality of the Triassic Skagerrak Formation sandstones in the high pressure high temperature (HPHT) Central Graben, North Sea. The reply discusses alterative reservoir quality interpretations and comments as raised by Maast (2016). A series of theoretical and experimental studies, as well as field based evidence is presented providing strong support to the important role of stress (e.g. vertical effective stress) during chemical compaction. The evidence leads to the conclusion that the process of chemical compaction is stress and temperature driven and significantly enhanced by clay minerals, playing a catalytic role by increasing the width of diffusion pathway or by modifying the kinetics of the dissolution process.

Journal Article Type Article
Acceptance Date Oct 23, 2016
Online Publication Date Nov 1, 2016
Publication Date Jan 1, 2017
Deposit Date Jan 17, 2017
Publicly Available Date Nov 1, 2017
Journal Marine and Petroleum Geology
Print ISSN 0264-8172
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 79
Pages 337-339
Keywords Central North Sea, Diagenesis, Quartz cementation, Reservoir quality, Skagerrak Formation, Vertical effective stress.
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