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Some applications of clay mineralogy to reservoir description

Published online by Cambridge University Press:  09 July 2018

A. Hurst  and
J. S. Archer
A. Hurst
Affiliation:
Department of Reservoir Evaluation, Statoil, Forus, Postboks 300, N-4001 Stavanger, Norwa
J. S. Archer
Affiliation:
ERC Energy Resource Consultants Ltd., 15 Welbeck St., London W1M 7PF
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Abstract

Study of sandstone diagenesis provides information about the origin, texture, distribution and composition of clay minerals, which in turn is used in reservoir description. Three examples of the use of clay mineralogy in reservoir description are given. (1) Kaolinite commonly forms pore-filling cements which are pervasive in specific sandstone intervals. It is shown that water-zone kaolinization homogenizes and lowers the porosity and permeability relative to the oil zone; in a reservoir model different Ø/K relationships are defined above and below the oil-water contact. (2) An occurrence of chlorite in dish-structured horizons is shown to increase horizontal permeability and decrease formation resistivity. The sensitivity of the neutron porosity log to the chlorite cement reduces the usefulness of the log for porosity evaluation. Uncritical application of wireline logs to define reservoir parameters can give pessimistic reservoir evaluation. (3) Sand production can be related to wettability, which in turn is strongly influenced by clay mineralogy. A perforation strategy to minimize sand production may then be based on knowledge of the clay mineralogy of a reservoir.

Type
Research Article
Information
Clay Minerals , Volume 21 , Issue 4 , October 1986 , pp. 811 - 826
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1986

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References

Almon, W.R. (1979) A geologic appreciation of shaly sands. SPWLA 20th Ann. Logg. Symp., WW.Google Scholar
Almon, W.R. & Davies, D.K. (1979) Regional diagenetic trends in the lower Cretaceous Muddy Sandstone, Powder River Basin. Pp. 379–400 in: Aspects of Diagenesis (Scholle, P. A. and Schluger, P. R., editors). SEPM Spec. Publ. 26.Google Scholar
Almon, W.R. & Davies, D.K. (1981) Formation damage and the crystal chemistry of clays. Pp. 81–103 in: Clays and the Resource Geologist (Longstaffe, F. J., editor) Min. Soc. Canada, Short Course Handbook 7.Google Scholar
Bjørlykke, K., Elverhoi, A. & Malm, O.A. (1979) Diagenesis in Mesozoic sandstones from Spitzbergen and the North Sea-—a comparison. Geol Rundschau 6, 1152–1171.Google Scholar
Boles, J.R. & Franks, S.G. (1979) Clay diagenesis in Wilcox sandstones of south-west Texas: implications of smectite diagenesis on sandstone cementation. J. Sedim. Petrol 49, 55–70.Google Scholar
Bobek, J.E., Mattax, C.C. & Denekas, M.O. (1958) Reservoir rock wettability-—its significance and evaluation. Pet. Trans., AIME 213, 155–160.Google Scholar
Craig, F.F. (1971) The reservoir engineering aspects of waterflooding. Soc. Pet. Eng., AIME Monograph, 3.Google Scholar
Curtis, C.D. (1978) Possible links between sandstone diagenesis and depth-related geochemical reactions occurring in enclosing mudstones. J. geol. Soc. London 135, 107–118.Google Scholar
Davies, D.K., Almon, W.R., Bonis, S.B. & Hunter, B.E. (1979) Deposition and diagenesis of Tertiary- Holocene volcaniclastics, Guatemala. Pp. 281–306 in: Aspects of Diagenesis (Scholle, P. A. and Schluber, P. R., editors). SEPM Spec. Publ. 26.Google Scholar
Fertl, W.R. & Frost, E. (1980) Evaluation of shaly clastic reservoir rocks. J. Pet. Tech. Sept, 1641–1645.Google Scholar
Guven, N., Hower, W.F. & Davies, D.K. (1980) Nature of authigenic illites in sandstone reservoirs. J. Sedim, Petrol. 50, 761–766.Google Scholar
Hancock, N.J. (1978) Diagenetic modelling in the middle Jurassic Brent sandstones of the Northern North Sea. Proc. Europ. Offshore Petrol. Conf. Exhib., London, 275–280.Google Scholar
Hearn, C.L., Ebanks, W.J., Tye, R.S. & Ranganathan, V. (1984) Geological factors influencing reservoir performance of the Hartzog Draw Field, Wyoming. J. Pet. Tech. August, 1335–1344.Google Scholar
Hurst, A. & Archer, J.S. (1986) Reservoir description: an overview of the role of geology and clay mineralogy. Clay Miner. 21, 791–811.CrossRefGoogle Scholar
Hurst, A. & Buller, A.T. (1984) Dish structures in some Paleocene deep-sea sandstones (Norwegian Sector, North Sea): origin of the dish-forming clays and their effect on reservoir quality. J. Sedim. Petrol. 54, 1206–1211.Google Scholar
Hurst, A. & Irwin, H. (1982) Geological modelling of clay diagenesis in sandstones. Clay Miner. 17, 5–22.CrossRefGoogle 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, 23–40.Google Scholar
Muecke, T.W. (1979) Formation fines and factors controlling their movement in porous media. J. Pet. Tech. February, 144–150.Google Scholar
Nadeau, P.H., Tait, J.M., McHardy, W.J. & Wilson, M.J. (1984) Interstratified XRD characteristics of physical mixtures of elementary clay particles. Clay Miner. 19, 67–76.Google Scholar
Owens, W.W. & Archer, D.L. (1971) The effect of rock wettability on oil-water relative permeability relationships. Proc. 45th Ann. Fall Meet. SPE., paper 3034.Google Scholar
Pallatt, N., Wilson, M.J. & McHardy, W.J. (1984) The relationship between permeability and the morphology of diagenetic illite in reservoir rocks. J. Pet. Tech. December, 2225–2227.Google Scholar
Quirein, J.A., Baldwin, J.L., Terry, R.L. & Hendrix, M. (1981) Estimation of clay types and volumes from well log data—-an extension of the global method. Proc. 8th Formation Evaluation Syrup. Canadian Well Logging Soc., Calgary, paper 8.Google Scholar
Ruhovets, N. & Fertl, W.R. (1981) Digital shaly sand analysis based on Waxman-Smiths model and log-derived clay typing. Trans. 7th European SPWLA Symp., 21–37.Google Scholar
Schlumberger, (1972) The Essentials of Log Interpretation Practice. Services Techniques Schlumberger, 58 pp.Google Scholar
Seeman, U. (1979) Diagenetically formed interstitial clay minerals as a factor in Rotliegende sandstone reservoir quality in the Dutch sector of the North Sea. J. Petrol. Geol. 1, 55–62.Google Scholar
Sommer, F. (1978) Diagenesis of Jurassic sandstones in the Viking Graben. J. Geol. Soc. London 135, 63–67.Google Scholar
Walker, T.R., Waugh, B. & Crone, A.J. (1978) Diagenesis of first-cycle desert alluvium of Cenozoic age, southwestern U.S. and northwestern Mexico. Geol. Soc. Am. Bull. 89, 19–32.Google Scholar