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Science in China Series D: Earth Sciences

, Volume 45, Issue 7, pp 616–634 | Cite as

Reconstruction of the diagenesis of the fluvial-lacustrinedeltaic sandstones and its influence on the reservoir quality evolution

—Evidence from Jurassic and Triassic sandstones, Yanchang Oil Field, Ordos Basin
  • Jinglan Luo
  • S. Morad
  • Xiaoli Zhang
  • Shike Yan
  • Fuli Wu
  • Yuhong Li
  • Junmin Xue
Article

Abstract

The reservoir quality of Jurassic and Triassic fluvial and lacustrine-deltaic sandstones of the Yanchang Oil Field in the Ordos Basin is strongly influenced by the burial history and facies-related diagenetic events. The fluvial sandstones have a higher average porosity (14.8%) and a higher permeability (12.7 × 10−3 μm2) than those of the deltaic sandstones (9.8% and 5.8 ×10−3) μm2, respectively). The burial compaction, which resulted in 15% and 20% porosity loss for Jurassic and Triassic sandstones, respectively, is the main factor causing the loss of porosity both for the Jurassic and Triassic sandstones. Among the cements, carbonate is the main one that reduced the reservoir quality of the sandstones. The organic acidic fluid derived from organic matter in the source rocks, the inorganic fluid from rock-water reaction during the late diagenesis, and meteoric waters during the epidiagenesis resulted in the formation of dissolution porosity, which is the main reason for the enhancement of reservoir-quality.

Keywords

Yanchang Oil Field Jurassic and Triassic fluvial lacustrine-deltaic sandstone diagenesis reservoir-quality evolution 

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References

  1. 1.
    Dixon, S. A., Summers, D. M., Surdam, R. C., Diagenesis and preservation of porosity in Norphlet Formation (Upper Jurassic), southern Alabama, AAPG Bulletin, 1989, 73: 707–728.Google Scholar
  2. 2.
    Cowan, G., Diagenesis of Upper Carboniferous sandstones: southern North Sea Basin, in Deltas: Sites and Traps for Fossil Fuels (eds. Whateley, M. K. G, Pickering, K.T.) Geological Society of London Special Publication, 1989 41: 57–73.Google Scholar
  3. 3.
    Worden, R. H., Oxtoby, N. H., Smalley, P. C., Can oil emplacement prevent quartz cementation in sandstones? Petroleum Geoscience, 1998,4: 129–137.Google Scholar
  4. 4.
    Alaa, M., Salem, S., Morad, S. et al., Diagenesis and reservoir-quality evolution of fluvial sandstones during progressive burial and uplift: Evidence from the Upper Jurassic Boipeba Member, Reconcavo Basin, Northeastern Brazil, AAPG Bulletin, 2000, 84(7): 1015–1040.Google Scholar
  5. 5.
    Qiu Yinan, Xue Shuhao, Technology for Assessment on Hydrocarbon Reservoirs (in Chinese), Beijing: Petroleum Industry Press, 1994,59–64.Google Scholar
  6. 6.
    Qiu Yinan, Xue Shuhao, Ying Fengxiang, Terrestrial Hydrocarbon Reservoirs in China (in Chinese), Beijing: Petroleum Industry Press, 1997, 149–217.Google Scholar
  7. 7.
    Luo Jinglan, Zhang Chengli, Yan Shike, Effect of burial history of physical property of sandstone reservoirs: Taking Yanchang Oil Region in North Shaanxi as an example, Oil and Gas Geology (in Chinese), 2001, 22(2): 123–127.Google Scholar
  8. 8.
    Morad, S., Ketzer, J. M., De Ros, L. F., Spatial and temporal distribution of diagenetic alterations in siliciclastic rocks: Implications for mass transfer in sedimentary basins, Sedimentology, 2000, 47(Suppl. 1): 95–120.CrossRefGoogle Scholar
  9. 9.
    Macaulay, L. I., Fallick, A. E., McLaughlin, O. M. et al., The significance of δ13C of carbonate cements in reservoir sandstones: A regional perspective from the Jurassic of the northern North Sea, in: Carbonate Cementation in Sandstones: Distritution Patterns and Geochemical Evolution (ed. Morad, S.), Special Publication Number 26 of the International Association of Sedimentologists, London: Blackwell Science, 1998, 26: 395–408.Google Scholar
  10. 10.
    Zheng Leping, Studies on stable carbon isotopic composition of CO2 in the soil of Karst area, Central Guizhou Province, Science in China, Ser. D, 1999, 42(6): 588–594.Google Scholar
  11. 11.
    Li Renwei, Lu Jiacan, Zhang Shukun et al., Organic carbon isotopic composition in black shales of Sinian and early Cambrian, Science in China, Ser. D, 1999, 42(6): 595–603.CrossRefGoogle Scholar
  12. 12.
    Wang Baoqing, Zhang Dinan, Liu Shuqin et al., Diagenesis of reservoir rocks of Gaotaizi oil bed (Cretaceous) and its influence on porosity modification in Longhupao field area, Acta Sedimentologica Sinica (in Chinese), 2000, 18(3): 414–418.Google Scholar
  13. 13.
    Veizer, J., Strontium isotopes in seawater through time, Ann. Rev. Earth Planet. Sei., 1989, 17: 141–167.CrossRefGoogle Scholar
  14. 14.
    Houseknecht, D. W., Assessing the relative importance of compaction processes and cementation to reduction of porosity in sandstones, AAPG Bulletin, 1987, 71: 633–642.Google Scholar
  15. 15.
    Beaufort, D., Cassagnabere, A., Petit, S. et al., Kaolinite-to-dickite reaction in sandstone reservoirs, Clay Minerals, 1998, 33:297–316.CrossRefGoogle Scholar
  16. 16.
    Morad, S., De Ros, L. F., Geochemistry and diagenesis of stratabound calcite cement layers within the Rannoch Formation of the Brent Group, Murchison Field, North Viking Graben (northern North Sea) — Comment, Sedimentary Geology, 1994,93:135–141.CrossRefGoogle Scholar
  17. 17.
    Boles, J. R., Franks, S. G., Clay diagenesis in Wilcox sandstones of Southwest Texas: Implications of smectite diagenesis on cementation, Journal of Sedimentary Petrology, 1979, 49: 55–70.Google Scholar
  18. 18.
    Morad, S., Carbonate cementation in sandstones: Distribution patterns and geochemical evolution, in Carbonate Cementation in Sandstones (ed. Morad, S.), IAS Special Publication, 1998, 26: 1–27.Google Scholar
  19. 19.
    Lundegard, P. D., Land, L. S., Carbon di oxide and organic acids: Their role in porosity enhancement and cementation, Paleocene of the Texas Gulf Coast, in Roles of organic matter in sediment diagenesis (ed. Gautier, D. L.), SEPM Special Publication, 1986, (38): 123–146.Google Scholar
  20. 20.
    Friedman, I., O’Neil, J. R., Compilation of stable isotopic fractionation factors of geochemical interest, US Geol. Surv. Prof. Pap., 1977, 440-KK, p. 12.Google Scholar
  21. 21.
    Lei Huaiyan, Shi Yuxin, Guan Ping et al., Studies on catalytic effects of Al-silicate clay minerals for the formation of gas in the intermediate zone, Science in China, Ser. D, 1997,40(2): 130–136.CrossRefGoogle Scholar
  22. 22.
    Paxton, S. T., Szabo, J. O., Calvert, S. et al., Preservation of primary porosity in deeply buried sandstones: A new play concept from the Cretaceous Tuscaloosa Sandstone of Louisiana, AAPG Bulletin, 1990, 74: 737.Google Scholar
  23. 23.
    Szabo, J. O., Paxton, S. T., Intergranular volume (IGV) decline curves for evaluating and predicting compaction and porosity loss in sandstones, AAPGBulletin, 1991, 75: 678.Google Scholar
  24. 24.
    Oelkers, E. H., Bjθrkum, P. A., Murphy, W. M., A petrographie and computational investigation of quartz cementation and porosity reduction in North Sea sandstones, American Journal of Science, 1996, 296: 420–452.Google Scholar
  25. 25.
    Surdam, R. C, Crossey, L. J., Hagen, E. S. et al., Organic-inorganic interaction and sandstone diagenesis, AAPG Bulletin, 1989,78(1): 1–23.Google Scholar
  26. 26.
    Wang Qi, Shi Ji’ an, Xue Lianhua et al., Characteristics of fluid-rock interaction in clastic reservoir controlled by evolution of diagenetic environment—Taking the southwest depression of Tarim Basin as an example, Acta Sedimentologica Sinica (in Chinese), 1999, 17(4): 584–590.Google Scholar
  27. 27.
    Yuan Jing, Zhao Chengling, Diagenetic influence of chemical property and flow model of water for deep sandstone reservoirs, Journal of the University of Petroleum, China (in Chinese), 2000, 24(1): 60–63.Google Scholar

Copyright information

© Science in China Press 2002

Authors and Affiliations

  • Jinglan Luo
    • 1
  • S. Morad
    • 2
  • Xiaoli Zhang
    • 1
  • Shike Yan
    • 3
  • Fuli Wu
  • Yuhong Li
  • Junmin Xue
    • 3
  1. 1.Key Laboratory for Continental Dynamics, Ministry of Education of ChinaDepartment of Geology, Northwest UniversityXi’anChina
  2. 2.Department of Earth SciencesUppsala UniversitySweden
  3. 3.Yanchang Petroleum Administration BureauYongpingChina

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