Modeling of Hydrocarbon Generation and Expulsion in the Tyee Basin, Oregon Coast Range, USA

미국 북서부 오레곤주 타이분지 내 탄화수소 생성과 배출에 대한 모델링 연구

  • Jang, Hee-Jeong (Department of Geology, Kyungpook National University) ;
  • Ryu, In-Chang (Department of Geology, Kyungpook National University)
  • Published : 2009.02.28

Abstract

The timing of hydrocarbon generation and expulsion from source rocks can be evaluated by reconstructing the geohistory of the basin using petroleum system modeling. The Tyee basin is generally considered having a high hydrocarbon generation potential For the southern part of the basin, the basin evolution from a structural and stratigraphic points of view, the thermal history, and the burial history were reconstructed and simulated using numerical tools of basin modeling. An evaluation of organic geochemistry for the potential source rocks and the possible petroleum systems were analysed to improve the understanding of the hydrocarbon charge of the basin. Organic geochemical data indicate that the undifferentiated Umpqua Group, mudstones of the Klamath Mountains, and coals and carbonaceous mudstones in the Remote Member and the Coquille River Member are the most potential gas-prone source rocks in the basin. The relatively high maturity of the southern Tyee basin is related to deep burial resulting from loading by the Coos bay strata. And the heating by intrusion from the western Cascade arc also affects to the high maturity of the basin. The maturation of source rocks, the hydrocarbon generation and expulsion were evaluated by means of basin modeling. The modeling results reveal that the hydrocarbon was generated in all potential source rocks and an expulsion only occurred from the Remote Member.

Keywords

hydrocarbon;petroleum system modeling;Tyee basin

References

  1. Amoco Production Company (1983) Source rock evaluation: Eocene cuttings, Florida Exploration No. 1-4 Harris well, Douglas County, Oregon. Amoco Production Company Internal Report
  2. Amoco Production Company (1985) Oil correlation evaluation: Drilling mud analysis, Amoco No. B-1 Weyerhaeuser well, Douglas County, Oregon. Amoco Production Company Internal Report
  3. Blackwell, D.D. and Steele, J.L. (1992) Geothermal Map of North America: Decade of North American Geology, DNAG, Continent-Scale Map-006. Geological Society of America, Boulder, CO
  4. Browning, J.L. and Flanagan, T. (1980) Source rock study of the lower Tertiary formations of southwestern Oregon. Unpublished reports on file in offices of Oregon Department of Geology and Mineral Industries
  5. Lee, B.R. (2008) Petroleum system modeling of continental shelf area, southwestern margin of the Ulleung basin, East Sea. Master Thesis, University of Science and Technology, 75p
  6. Niem, A.R. and Niem, W.A. (1990) Geology and oil, gas, and coal resources, southern Tyee basin, southern Coast Range, Oregon. Oregon Department of Geology and Mineral Industries, Open-File Report O-89-3
  7. Walker, G.W. and MacLeod, M.S. (1991) Geologic map of Oregon. U.S. Geological Survey, scale 1:1,500,000
  8. Snavely, P.D., Jr., MacLeod, N.S. and Wagner, H.C. (1968) Tholeiitic and alkalic basalts of the Eocene Siletz River Volcanics, Oregon Coast Range. American Journal of Science, v. 266, p. 454-481 https://doi.org/10.2475/ajs.266.6.454
  9. Snavely, P.D., Jr. (1987) Tertiary geologic framework, neotectonics, and petroleum potential of the Oregon- Washington continental Margin; in Scholl, D.W., Grantz, A., and Vedder, F.G., (eds.) Geology and resource potential of the continental Margin of western north America and adjacent ocean basins - Beaufort Sea to Baja California. Circum-Pacific Council for Energy and Mineral Resources Earth Science Series, v. 6, p. 305-335
  10. Chan, M.A. and Dott, R.H., Jr. (1983) Shelf and deep-sea sedimentation in Eocene forearc basin, western Oregon - fan or non-fan?. American Association of Petroleum Geologists Bulletin, v. 67, p. 2100-2116
  11. Ryu, I.C., Niem, A.R. and Niem, W.A. (1992) Schematic fence diagram of the southern Tyee basin, Oregon Coast Range, showing stratigraphic relationshipsof exploration wells to surface measured sections. Oregon Department of Geology and Mineral Industries Oil and Gas Investigation 18, p. 28
  12. Blackwell, D.D., Bowen, R.G., Hull, D.A. and Riccio, J. (1982) Heat flow, arc volcanism, and subduction in Northern Oregon. Journal of Geophysical Research, v. 87, no. B10, p. 8735-8754 https://doi.org/10.1029/JB087iB10p08735
  13. Mobil Oil Corporation (1980) Source rock data on Map of southwest Oregon. Mobil internal report
  14. Magoon, L.B. and Dow, W.G. (1994) The petroleum system from source to trap. American Association of Petroleum Geologists Memoir 60, p. 3-24
  15. Waples, D.W., Kamata, H. and Suizu, M. (1992) The art of maturity modeling, part 1: finding a satisfactory geologic model. American Association of Petroleum Geologists Bulletin, v. 76, p. 31-46
  16. Law, B.E., Anders, D.E., Fouch, T.D., Pawlewicz, M.J., Lickus, M.R. and Molenaar, C.M. (1984) Petroleum source rock evaluation of outcrop samples from Oregon and northern California. Oregon Geology, v. 46, p. 77-81
  17. Niem, W.A., Niem, A.R. and Snavely, P.D., Jr. (1992) Early and Mid-Tertiary oceanic realm and continental Margin - western Washington-Oregon coastal sequence; in Burchfiel, B.C., Lipman, P.W., and Zoback, M.L., eds., The Cordilleran Orogen. Conterminous U.S.: Geological Society of America, v. G-3, p. 265-270
  18. Dow, W.G. (1977) Kerogen studies and geological interpretation. Journal of Geochemical Exploration, v. 7, p. 77-99 https://doi.org/10.1016/0375-6742(77)90077-2
  19. Brown and Ruth Laboratories Incorporation (1983) Regional petroleum geochemistry of the onshore and offshore sediments of Washington and Oregon: Geochemical reports on General Petroleum Long Bell No. 1, Sutherlin Unit No. 1, and Amoco Weyerhaeuser F-1 wells. Unpublished reports on file in offices of Oregon Department of Geology and Mineral Industries
  20. Newton, Jr. V.C. (1980) Prospects for oil and gas in the Coos basin, western Coos, Douglas, and Lane counties, Oregon. Oregon Department of Geology and Mineral Industries Oil and Gas Investigation 6
  21. Heller, P.L. and Ryberg, P.T. (1983) Sedimentary record of subduction to forearc transition in the rotated Eocene basin of western Oregon. Geology, v. 11, p. 380-383 https://doi.org/10.1130/0091-7613(1983)11<380:SROSTF>2.0.CO;2
  22. Falvey, D.A. and Middleton, M.F. (1981) Passive continental margins: Evidence for a prebreakup deep crustal metamorphic subsidence mechanism. Oceanologic Acta Special Publication, p. 103-114
  23. Molenaar, C.M. (1985) Depositional relations of Umpqua and Tyee Formations (Eocene), Southwestern Oregon. American Association of Petroleum Geologists Bulletin, v. 69, p. 1217-1229
  24. Wells, R.E., Engebretson, D.C., Snavely, Jr., P.D. and Coe, R.S. (1984) Cenozoic plate motions and the volcanotectonic evolution of western Oregon and Washington. Tectonics, v. 3, p. 275-294 https://doi.org/10.1029/TC003i002p00275
  25. Welte, D.H. and Yalcin, M.N. (1987) Basin modelling - A new comprehensive method in petroleum geology. Advances in Organic Geochemistry, v. 13, p. 141-151 https://doi.org/10.1016/0146-6380(88)90034-4
  26. Snavely, P.D., Jr., Wagner, H.C. and MacLeod, N.S. (1964) Rhythmic-bedded eugeosynclinal deposits of the Tyee Formation, Oregon Coast Range. Kansas Geological Survey Bulletin, v. 169, p. 461-480
  27. Tissot, B.P. and Welte, D.H. (1978) Petroleum Formation and Occurrence. Springer, New York. 538p
  28. Armentrout, J.M. and Suek, D.H. (1985) Hydrocarbon exploration in western Oregon and Washington. American Association of Petroleum Geologists Bulletin, v. 69, p. 627-643
  29. Ryu, I.C., Niem, A.R. and Niem, W.A. (1996) Oil and gas evaluation of the southern Tyee basin, Oregon Coast Range. Oregon Department of Geology and Mineral Industries Oil and Gas Investigation 19, p. 141
  30. Ryu, I.C. (2008) Source rock characterization and petroleum systems of Eocene Tyee basin, southern Oregon Coast Range, USA. Organic Geochemistry, v. 39, p. 75-90 https://doi.org/10.1016/j.orggeochem.2007.09.004
  31. Sweeney, J.J. and Burnham, A.D. (1990) Evaluation of a simple model of vitrinite reflectance based on chemical kinetics. American Association of Petroleum Geologists Bulletin, v. 74, p. 1559-1570
  32. Waples, D.W. and Marz, R.W. (1998) The universality of the relationship between vitrinite reflectance and transformation ratio. Organic Geochemistry, v. 28, p. 383-388 https://doi.org/10.1016/S0146-6380(97)00122-8
  33. Allen, P.A. and Allen, J.R. (1990) Basin analysis: principles and applications. Blackwell Scientific Publications, London, 301p
  34. Wells, R.E. and Heller, P.L. (1988) The relative contribution of accretion, shear, and extension to Cenozoic tectonic rotation in the Pacific northwest. Geological Society of America Bulletin, v. 100, p. 325-338 https://doi.org/10.1130/0016-7606(1988)100<0325:TRCOAS>2.3.CO;2
  35. Baldwin, E.M. and Perttu, R.D. (1980) Paleogene stratigraphy and structure along the Klamath borderland, Oregon; in Oles, G.F., Johnson, J.G., Niem, A.R. and Niem, W.A., (eds.) Geologic field trips in western Oregon and southwestern Washington. Oregon Dept. of Geology and Mineral Industries Bulletin 101, p. 9-37