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Dedolomitization Potential of Fluids from Gypsum-to-Anhydrite Conversion: Mass Balance Constraints from the Late Permian Zechstein-2-Carbonates in NW Germany
Joint Authors
Reuning, Lars
Hallenberger, M.
Schoenherr, J.
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-02-18
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
The Zechstein-2-Carbonates represent one of the most prolific hydrocarbon systems of Central Europe.
Carbonate reservoir quality is primarily controlled by mineralogy, with dolomite representing moderate-to-good porosities and calcite commonly representing low porosities.
Current models suggest that this calcite is the result of a basin-wide phase of dedolomitization.
The calcium (Ca) source for the dedolomites is thought to be derived from the fluids liberated during gypsum-to-anhydrite conversion.
We present an easy-to-use and generally applicable template to estimate the dedolomitization potential of these fluids.
Depending on reaction stoichiometry, salinity, and temperature, we estimate that between 2.8⁎10−3 m3 and 6.2⁎10−3 m3 of calcite may replace dolomite for each m3 of anhydrite created.
Within the constraints dictated by the environment of the late Permian Zechstein basin, we estimate that about 5⁎10−3 m3 of dedolomite is created for each m3 of anhydrite.
Mass balance constraints indicate that fluids derived from gypsum-to-anhydrite conversion account for less than 1% of the observed dedolomite in most of the studied industry wells from northern Germany.
American Psychological Association (APA)
Hallenberger, M.& Reuning, Lars& Schoenherr, J.. 2018. Dedolomitization Potential of Fluids from Gypsum-to-Anhydrite Conversion: Mass Balance Constraints from the Late Permian Zechstein-2-Carbonates in NW Germany. Geofluids،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1157221
Modern Language Association (MLA)
Hallenberger, M.…[et al.]. Dedolomitization Potential of Fluids from Gypsum-to-Anhydrite Conversion: Mass Balance Constraints from the Late Permian Zechstein-2-Carbonates in NW Germany. Geofluids No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1157221
American Medical Association (AMA)
Hallenberger, M.& Reuning, Lars& Schoenherr, J.. Dedolomitization Potential of Fluids from Gypsum-to-Anhydrite Conversion: Mass Balance Constraints from the Late Permian Zechstein-2-Carbonates in NW Germany. Geofluids. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1157221
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1157221