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Geochemical modelling of diagenetic reactions in a sub-arkosic sandstone

Published online by Cambridge University Press:  09 July 2018

S. A. Barclay  and
R. H. Worden
S. A. Barclay
Affiliation:
School of Geosciences, The Queen's University of Belfast, Belfast BT7 1NN, UK
R. H. Worden*
Affiliation:
School of Geosciences, The Queen's University of Belfast, Belfast BT7 1NN, UK
*
*E-mail: [email protected]
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Abstract

A reaction path model was constructed in a bid to simulate diagenesis in the Magnus Sandstone, an Upper Jurassic turbidite reservoir in the Northern North Sea, UKCS. The model, involving a flux of source rock-derived CO2 into an arkosic sandstone, successfully reproduced simultaneous dissolution of detrital K-feldspar and growth of authigenic quartz, ankerite and illite. Generation of CO2 occurred before and during the main phase of oil generation linking source rock maturation with patterns of diagenesis in arkosic sandstones and limiting this type of diagenesis to the earlier stages of oil charging. Independent corroborative evidence for the model is provided by formation water geochemical data, carbon isotope data from ankerite and produced gas phase CO2 and the presence of petroleum inclusions within the mineral cements. The model involves a closed system with respect to relatively insoluble species such as SiO2 and Al2O3 but is an open system with respect to CO2. There are up to seven possible rate-controlling steps including: influx of CO2, dissolution of K-feldspar, precipitation of quartz, ankerite and illite, diffusive transport of SiO2 and Al2O3 from the site of dissolution to the site of precipitation and possibly the rate of influx of Mg2+ and Ca2+. Given the large number of possible controls, and contrary to modern popular belief, the rate of quartz precipitation is thus not always rate limiting.

Keywords

quartz cementationdiagenesisgeochemical modellingK-feldspar reactioncarbon dioxide
Type
Research Article
Information
Clay Minerals , Volume 35 , Issue 1 , March 2000 , pp. 57 - 67
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2000

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Footnotes

†

Present address: Department of Geology & Geophysics, University of Edinburgh, West Mains Road, Edinburgh EH9 3JW, UK

‡

Present address: Department of Earth Sciences, University of Liverpool, Brownlow Street, Liverpool L69 3BX, UK

References

Andresen, B., Throndsen, T., Barth, T. & Bolstad, J. (1994) Thermal generation of carbon dioxide and organic acids from different source rocks. Org. Geochem. 21, 21–1229.Google Scholar
Barclay, S.A. (1999) Controls on the distribution, source and timing of mineral cements in an oilfield. PhD thesis, The Queen's Univ., Belfast, UK.Google Scholar
Bethke, C.M. (1994) The Geochemist's Workbench, version 2.4, A Users Guide to Rxn, Act2, Tact, React and Gtplot. Hydrodology Program, University of Illinois, USA.Google Scholar
Bjørkum, P.A., Oelkers, E.H., Nadeau, P.H., Walderhaug, O. & Murphy, W.M. (1998) Porosity prediction in quartzose sandstones as a function of time, temperature, depth, stylolite frequency and hydrocarbon saturation. Am. Assoc. Petrol. Geol. Bull. 82, 82–637.Google Scholar
Bjørlykke, K. (1995) Pore-water flow and mass transfer of solids in solution in sedimentary basins. Pp. 189-221 in: Quantitative Diagenesis: Recent Developments and Applications to Reservoir Geology (Parker, A. & Sellwood, B.W., editors). Kluwer, Dordrecht, Netherlands, NATO ASI Series C,453.Google Scholar
Bjorlykke, K. & Aagaard, P. (1992) Clay minerals in North Sea sandstones. Pp. 64-80 in: Origin, Diagenesis and Petrophysics of Clay Minerals in Sandstones (Houseknecht, D.W. & Pittman, E.D., editors). SEPM Spec. Publ. 47.Google Scholar
Bjørlykke, K. & Egeberg, P.K (1993) Quartz cementation in sedimentary basins. Am. Assoc. Petrol. Geol. Bull. 77, 77–1538.Google Scholar
Burley, S.D. (1986) The development and destruction of porosity within Upper Jurassic reservoir sandstones of the Piper and Tartan Fields, Outer Moray Firth, North Sea. Clay Miner. 21, 21–649.Google Scholar
Burley, S.D. (1993) Models of burial diagenesis for deep exploration plays in Jurassic fault traps of the Central and Northern North Sea. Pp. 1353-1375 in: Petroleum Geology of Northwest Europe. (Parker, J.R., editor). Geological Society, London.Google Scholar
Curtis, C.D. (1978) Possible links between sandstone diagenesis and depth-related geochemical reactions occurring in enclosing mudstones. J. Geol. Soc. 135, 135–107.Google Scholar
De'Ath, N.G. & Schuyleman, S.F. (1981) The Geology of the Magnus Oilfield. Pp. 342-351 in: Petroleum Geology of the Continental Shelf of North-West Europe (Illing, L.V. & Hobson, G.D., editors). Institute of Petroleum, London.Google Scholar
Deer, W.A., Howie, R.A. & Zussman, J. (1966) An Introduction to the Rock-forming Minerals. Longman, London.Google Scholar
Delaney, J.M. & Lundeen, S.R. (1990) The LLNL Thermochemical Database. Lawrence Livermore National Laboratory Report UCRL-21658.Google Scholar
Emery, D., Smalley, P.C. & Oxtoby, N.H. (1993) Synchronous oil migration and cementation in sandstone reservoirs demonstrated by quantitative description of diagenesis. Phil. Trans. Royal Soc. A344, 344–115.Google Scholar
Garrels, R.M. & Howard, P. (1959) Reactions of feldspar and mica with water at low temperature and pressure. Clays Clay Miner. 6, 6–66.Google Scholar
Glasman, J.R. (1992) The fate of feldspar in the Brent Group reservoirs, North Sea: a regional synthesis of diagenesis in shallow, intermediate and deep burial environments. In: Geology of the Brent Group (Morton, A.C., Haszeldine, R.S., Giles, M.R. and Brown, S., editors). Geol. Soc. London, Spec. Publ., 61.Google Scholar
Hartmann, B.H., Juhàsz Bodnar, K., Ramseyer, K. & Matter, A. (2000) Polyphased quartz cementation and its sources: a case study from the Upper Palaeozoic Haushi Group sandstone, Sultanate of Oman. Pp. 253-269 in: Quartz Cementation in Oil Field Sandstones (Worden, R.H. & Morad, S., editors). Spec. Publ. Int. Assoc. Sedimentol. 29. Blackwells, Oxford, UK.Google Scholar
Helgeson, H.C. (1969) Thermodynamics of hydrothermal systems at elevated temperatures and pressures. Am. J. Sci. 267, 267–729.Google Scholar
Hendry, J.P. & Trewin, N.H. (1995) Authigenic quartz microfabrics in Cretaceous turbidites: evidence for silica transformation processes in sandstones. J. Sed. Res. 65, 65–380.Google Scholar
Johnson, J.W., Oelkers, E.H. & Helgeson HC. (1991) SUPCRT92: a software package for calculating the standard molal thermodynamic properties of minerals, gases, aqueous species and reactions from 1 to 5000 bars and 0°C to 1000°C. Lawrence Livermore National Laboratory, Earth Sciences Department, Illinois, USA.CrossRefGoogle Scholar
Jones, R.W. (1981) Some mass balance and geological constraints on migration mechanisms. Am. Assoc. Petrol. Geol. Bull. 65, 65–103.Google Scholar
Lynch, F.L., Mack, L.E. & Land, L.S. (1997) Burial diagenesis of illite/smectite in shales and the origins of authigenic quartz and secondary porosity in sandstones. Geochim. Cosmochim. Acta, 61, 61–1995.CrossRefGoogle Scholar
Macaulay, C.I., Haszeldine, R.S. & Fallick, A.E. (1992) Diagenetic pore waters stratified for at least 35 million years: Magnus oil field, North Sea. Am. Assoc. Petrol. Geol. Bull. 76, 76–1625.Google Scholar
Macaulay, C.I., Haszeldine, R.S. & Fallick, A.E. (1993) Distribution, chemistry, isotopic composition and origin of diagenetic carbonates: Magnus sandstone, North Sea. J. Sed. Pet. 63, 63–33.Google Scholar
McBride, E.F. (1989) Quartz cement in sandstones: A review. Earth Sci. Rev. 26, 26–69.Google Scholar
McHardy, W.J., Wilson, M.J. & Tait, J.M. (1982) Electron microscope and X-ray diffraction studies of filamentous illitic clay from sandstones of the Magnus Field. Clay Miner. 17, 17–23.CrossRefGoogle Scholar
Primmer, T.J., Cade, C.A., Evans, I.J., Gluyas, J., Hopkins, T., Oxtoby, N.H., Smalley, P.C., Warren, E.A. & Worden, R.H. (1997) Global patterns in sandstone diagenesis: application to reservoir quality prediction for petroleum exploration. Pp. 61-78 in: AAPG Memoir, 69 (Kupezc, J., Gluyas, J. & Bloch, S., editors). Am. Assoc. Petrol. Geol. Tulsa, USA.Google Scholar
Scotchman, I.C. (1987) Clay diagenesis in the Kimmeridge Clay Formation, onshore UK, and its relation to organic maturation. Mineral. Mag. 51, 51–535.Google Scholar
Shaw, H.F. & Primmer, T.J. (1991) Diagenesis of mudrocks from the Kimmeridge Clay Formation of the Brae Area, UK North Sea. Marine Petrol. Geol. 8, 8–270.Google Scholar
Shepherd, M., Kearney, C.J. & Milne, J.H. (1990) Magnus Field. Pp. 95-125 in: Atlas of Oil and Gas Fields: Structural Traps II (Beaumont, E.A. & Foster, N.H., editors). Am. Assoc. Petrol. Geol. Tulsa, USA.Google Scholar
Smith, J.T. & Ehrenberg, S.N. (1989) Correlation of carbon dioxide abundance with temperature with temperature in clastic hydrocarbon reservoirs: relationship to inorganic equilibrium. Marine Petrol. Geol. 6, 6–129.Google Scholar
Warren, E.A. & Smalley, P.C. (1994) North Sea Formation Waters Atlas. Memoir No. 15, The Geological Society, London.CrossRefGoogle Scholar
Worden, R.H. & Morad, S. (2000) Quartz cement in oil field sandstones: a review of the critical problems. Pp. 1-20 in: Quartz Cementation in Oil Field Sandstones (Worden, R.H. & Morad, S. editors). Spec. Publ. Int. Assoc. Sedimentol. 29. Blackwells, Oxford, UK.Google Scholar
Worden, R.H., Oxtoby, N.H. & Smalley, P.C. (1998) Can oil emplacement stop quartz cementation in sandstones. Petrol. Geosci. 4, 4–129.Google Scholar