Characterization and prediction of reservoir architecture and petrophysical properties in fluvial channel sandstones, middle Magdalena basin, Colombia
Abstract
About 1 .600 m of core from two major oil fields, and 600 m of outcrop sections near to one of the fields, integrated with thousands of core, side-wall core and outcrop porosity and permeability measurements show that petrophysical properties and reservoir continuity change consistently with the Accommodation to Sediment Supply (A/S) ratio. Channel sandstones exhibit regular, recurring motifs that are associated with changes in A/S conditions. Manifesting the lowest accommodation conditions are amalgamated channel sandstones, up to 5-m-thick, with intraclast-rich bases capped by up to 1 -m-thick floodplain mudstones. AT higher A/S conditions, slightly amalgamated channel sandstones have lateral accretion surfaces and are capped by a thicker unit of floodplain mudstones. Channel sandstones in the highest A/S conditions are single-storied, possess conspicuous lateral accretion surfaces with thick mud drapes, and have a thick cover of overbank and floodplain deposits. Detailed well log correlations, oil production and pressure data support that the former are more lateral continuous while the I after form laterally discontinuous bodies embedded in floodplain mudstones. Petrophysical properties are closely associated with subtle variations in fades, particularly degree of preservation of original bedforms, and both are stratigraphically sensitive. Petrophysical properties of identical sedimentological fades change regularly as a function of itsstratigraphic position because of variations in the rates of accumulation and degree of preservation of the sediments. In the case of fluvial strata deposited during an increase in A/S, porosity and permeability are highest in trough cross-stratified sandstones immediately above channel scour bases, and decrease upward to the next scour base. Successive channel sandstones within the same stratigraphic sequence and channel sandstones from one sequence to the next have progressively lower porosity and permeability values in an overall increase in the A/S. An inverse trend is observed during a decrease in A/S.
References
Allen, J. R. L., 1978. "Studies in fluviatile sedimentation: bars, bar complexes and sandstone sheets (low sinuosity braided streams) in the Brownstones (L.Dev.), Welsh Borders", Sediment. Geol., 26: 281 -293.
Allen. J. R. L. 1979. "Studies in fluviatile sedimentation: an exploratory quantitative model for the architecture of avulsion-controlled alluvial suites", Sediment. Geol., 21: 129 -147. https://doi.org/10.1016/0037-0738(78)90002-7
Amaefule, J. O., Altunbay, M., Ohen, H., Kersey, D. G. and LANE, P., 1994. "A hydraulic (flow) unit-based approach for predicting formation damage profiles in uncored intervals/wells using core/log data", SPE 27365.
Beard, D. C. and Weyl, P. K., 1973. "The influence of texture on porosity and permeability of unconsolidated sand", AAPG Bull., 57: 349 -369. https://doi.org/10.1306/819A4272-16C5-11D7-8645000102C1865D
Blakey, R. C., and Gubitosa, R., 1984. Controls of sandstone body geometry and architecture in the Chinle Formation (Upper Triassic), Colorado Plateau, Sediment. Geol., 38: 51 -86. https://doi.org/10.1016/0037-0738(84)90074-5
Bridge, J. S. and Leeder, M. R., 1979. "A simulation model of alluvial stratigraphy", Sedimentology, 26: 617 -644. https://doi.org/10.1111/j.1365-3091.1979.tb00935.x
Chapin, M. A., 1989. "Quantification of multiscale rock property variations in fluvial systems for petroleum reservoir characterization", Unpublished M.Sc., Thesis, Colorado School of Mines, Golden.
Cross, T. A., Baker, M. R., Chapin, M. A., Clark, M. S., Gardner, M. H., Hanson, M. S., Lessenger, M. A., Little, L. D., McDonough, K. J., Sonnenfeld, M. D., Valasek, D. W., Williams, M. R., and Witter, D. N., 1993. "Applications of High-Resolution Sequence Stratigraphy to Reservoir Analysis", in Eschard, R. and Doligez, B., eds., Subsurface Reservoir Characterization from Outcrop Observations, Proceedings of the 7th Exploration and Production Research Conference, Paris, Teichnip: 11 -33.
Darcy, H., 1856. Les fountaines publiques de la Ville de Dijon, Paris, V.Dalmont, 674 p.
Davies, D. K. I., Williams, B. P. J. and Vessel, R. K., 1992. "Models for meandering and braided fluvial reservoirs with examples from the Travis Peak Formation, East Texas", SPE Paper 24692, 67th Annual Technical Conf., Washington, D. C.: 321 -329. https://doi.org/10.2118/24692-MS
Davies, D. K. I., and Bernal, M. C., 1995. "Influence of channel style on reservoir development and production characteristics: Oligocene sandstones of the Lisama Area, Magdalena Valley, Colombia", VI Petroleum Colombian Congress, Bogotá (Oct. 3 -6).
Dikey, P., 1992. "La Cira-Infantas Field-Colombia, Middle Magdalena Basin", in Structural Traps VII (Beaumont E. A. and Foster N. H., eds.), AAPG Treatise of Petroleum Geology, Atlas of Oil and Gas Fields: 323 -347.
Dodge, C. F., Holler, D. P., and Meyer, R. L., 1971. Reservoir heterogeneities of some Cretaceous sandstones, AAPG Bull., 55 (10): 1814 -1828. https://doi.org/10.1306/819A3DAA-16C5-11D7-8645000102C1865D
Fajardo, A. A., 1995. "4-D stratigraphic architecture and 3-D reservoir fluid flow model of the Mirador Fm., Cusiana field, Foothills area in the Cordillera Oriental, Colombia", Unpublished M.Sc., Thesis, Colorado School of Mines, Golden.
Fraser, H. J., 1935. "Experimental study of the porosity and permeability of clastic sediments", J. Geol., 43: 910 -1010. https://doi.org/10.1086/624388
Friend, P. F., 1983. "Towards the field classification of alluvial architecture of sequence", Modern and Ancient Fluvial Systems (Ed. by J. D. Collinson & J. Lewin), Spec. Publs int, Ass. Sediment., 6: 345 -354. https://doi.org/10.1002/9781444303773.ch28
Gaithor, A., 1953. "A study of porosity and grain relationships in sand", J. Sedim. Petrol., 23: 186 -195. https://doi.org/10.1306/D4269602-2B26-11D7-8648000102C1865D
Gardner, M. H., 1993. "Sequence stratigraphy of Upper Cretaceous Ferron Sandstone Member of the Mancos Shale, East-Central Utah", Unpublished Ph.D. Dissertation, Colorado School of Mines, Golden, 528 p.
Hanson, M. S., 1989. "Utilization of genetic sequence analysis in the prediction of Eagle sandstone reservoir facies distribution, Montana", Unpublished M.Sc. Thesis, Colorado School of Mines, Golden, Colorado, 150 p.
Harris, D. G., 1975. "The role of geology in reservoir simulation studies", J. Petrol. Techn. (May): 625 -632. https://doi.org/10.2118/5022-PA
Hurst, A. and Rosvoll, K. J., 1991. "Permeability variations in sandstones and their relationship to sedimentary structures", in Lake, L., Carroll, H., Jr., and Wesson, T., eds., Reservoir characterization II, Academic Press, Inc: 166 -196. https://doi.org/10.1016/B978-0-12-434066-4.50011-4
Jackson, S. R., Tomutsa, L., Szpakiewick, M., Chang, M. M., Honarpour, M. M. and Schatzinger, R. A., 1991. "Construction of a reservoir model by integrating geological and engineering information -Bell Creek Field, A barrier/ strandplain reservoir", in Lake, L., Carroll, H., Jr., and Wesson, T., eds., Reservoir characterization II, Academic Press, Inc.: 524 -556. https://doi.org/10.1016/B978-0-12-434066-4.50028-X
Jacobsen, T. and Rendall, H., 1991. "Permeability patterns in some fluvial sandstones. An outcrop study from Yorkshire, North East England", in Lake, L., Carroll, H., Jr., and Wesson, T., eds., Reservoir characterization II, Academic Press, Inc.: 315 -338. https://doi.org/10.1016/B978-0-12-434066-4.50018-7
Jennings, J. B., 1987. "Capillary pressure techniques: Application to exploration and development geology", AAPG Bull. (10): 1196 -1209.
Krumbein, W. C. and Monk, G. D., 1942. "Permeability as a function of the size parameters of unconsolidated sands", Am. Inst. Min. and Metal. Eng., Tech. Pub. 1492: 1 -11.
Kusumanegara, J., 1994. "Stratigraphic controls on petrophysical attributes and fluid flow pathways in an exhumed fluvial reservoir, Sunnyside quarry, Carbon Country, Utah", Unpublished M.Sc., Thesis, Colorado School of Mines, Golden.
Le Blanc, R. J., 1972. "Geometry of sandstone reservoir bodies", AAPG Memoir, 18: 133 -190.
Levorsen, A. I., 1966. "The geology of petroleum", Oxford: Freeman, 724 p.
Little, L. D., 1994. "Genetic stratigraphic analysis of the Upper Cretaceous Eagle sandstone, Bearpaw Mountains area, North-Central Montana", Unpublished M.Sc., thesis, Colorado School of Mines.
Mattax, C. C. and Dalton, R. L., 1990. "Reservoir Simulation", SPE Monograph, 13.
Melvin, J., 1993. "Evolving fluvial style in the Kekiktuk Formation (Mississippian), Endicott field area, Alaska: base level response to contemporaneous tectonism", AAPG Bull, 77: 1723 -1744. https://doi.org/10.1306/BDFF8F1A-1718-11D7-8645000102C1865D
Miller, D. D., Mcpherson, J. G., Covington, T. E., 1990. "Fluviodeltaic reservoir, South Belridge field, San Joaquin Valley, California", in Barwis JH, McPherson JG, Studlick RJ (eds), Sandstone petroleum reservoirs, Springer, Berlin Heidelberg, New York: 109 -130. https://doi.org/10.1007/978-1-4613-8988-0_6
Miall, A. D. 1996. The geology of fluvial deposits: Sedimentary facies, basin analysis and petroleum geology, Springer-Verlag, New York, 582 p.
Muskat, M., 1937. Flow of homogeneous fluids through porous media, New York, McGraw-Hill, 763 p. https://doi.org/10.1063/1.1710292
Olsen, T., Steel, R., Hogseth, K., Skar, T. and Roe, S. L., 1995. "Sequential architecture in a fluvial succession: sequence stratigraphy in the Upper Cretaceous Mesa Verde Group, Price Canyon, Utah", JSR, B65, (2): 265 -280. https://doi.org/10.1306/D426822A-2B26-11D7-8648000102C1865D
Pryor, W. A., 1973. Permeability-porosity patterns and variations in some Holocene sand bodies, AAPG Bull., 57: 162 -189. https://doi.org/10.1306/819A4252-16C5-11D7-8645000102C1865D
Puigdefabregas, C., and VanVliet, A., 1978. "Meandering stream deposits from the Tertiary of the Southern Pyrenees", in Miall, AD (ed.) Fluvial sedimentology, Can. Soc. Petrol. Geol. Mem, 5: 469 -485.
Rogers, J. J. and Head, W. B., 1961. "Relationship between porosity, mean size and sorting coefficients of synthetic sands", J. Sed. Petrol., 31: 467 -470. https://doi.org/10.1306/74D70BA5-2B21-11D7-8648000102C1865D
Sanchez-Moya, Y., Sopeña, A., and Ramos, A., 1996. "Infill architecture of a nonmarine half-graben Triassic basin (Central Spain)", JSR, 66 (6): 1122 -1136. https://doi.org/10.1306/D42684BE-2B26-11D7-8648000102C1865D
Shelton, J. W., 1973. "Models of sand and sandstone deposits: a methodology for determining sand genesis and trend", Bull. Oklah. Geol. Surv., 118: 122 p.
Schumm, S. A., 1977. The fluvial system, Wiley, New York.
Sneider, R. M., Richardson, F. H., Paynter, D. D., Eddy, R. E., and Wyant, I. A., 1977. "Predicting reservoir rock geometry and continuity in Pennsylvanian reservoirs, Elk City field, Oklahoma", J. Petrol. Tech., 29: 851-866. https://doi.org/10.2118/6138-PA
Sonnenfeld, M. D. and Cross, T. A., 1993. "Volumetric Partitioning and facies differentiation within the Permian Upper San Andres Formation of Last Chance Canyon, Guadalupe Mountains, New Mexico", in Loucks R. G., and Sarg, J. F., eds., Recent advances and applications of carbonate sequence stratigraphy, AAPG Memoir, 93: 435 -474. https://doi.org/10.1306/M57579C17
Walker, R. G.(ed.), 1979. Facies Models, Geol. Assoc. of Canada, St. John's, Newfoundland. Geosci. Can. Reprint Ser. 1.
Warren, J. E. and Price, H. S., 1961. "Flow in heterogeneous porous media", AIME. Trans, 222, SPEJ (Sept): 153 -169. https://doi.org/10.2118/1579-G
Weber, K. J., 1986. "How heterogeneity affects oil recovery", in Lake, L.W. and Carrol H.B. Jr. (eds), Reservoir characterization, academic press Inc., Orlando: 487 -544. https://doi.org/10.1016/B978-0-12-434065-7.50021-6
Weber, K. J. and Van Geuss, L. C., 1990. "Framework for constructing clastic reservoir simulation models", JPT (October). https://doi.org/10.2118/19582-PA
Willis, B. J., 1993. "Evolution of Miocene fluvial systems in the Himalayan foredeep through a two-kilometer-thick succession in northern Pakistan", Sed. Geol., 88: 77 -121. https://doi.org/10.1016/0037-0738(93)90152-U
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