Hydrocarbon Generating Potentials of Benue Trough Coals

  • Aliyu Jauro
  • Brian Horsfield
  • Heinz Wilkes
  • Muhammad B. Abubakar
Conference paper


Benue trough is an inland coal bearing basin that has been only lightly explored for petroleum. An organic geochemical analysis of coal samples from Kumo and Lamza in the upper part of the trough and from Lafia-Obi in the lower part was undertaken to assess their hydrocarbon generative potentials. The highest %Ro and Tmax of 0.9–1.1 % and 449–455 °C was found in Lafia-Obi samples, next was Lamza with 0.5–0.7 % and 434–438 °C and Kumo with 0.4–0.6 % and 415–429 °C. The HI of Lafia-Obi, Lamza and Kumo are within the ranges of 136–246 mg HC/g TOC, 184–269 mg HC/g TOC and 167–322 mg HC/g TOC respectively. The Odd-over-Even-Predominance (OEP) values and pristane/phytane (Pr/Ph) ratios of the samples suggest that they are dominantly terrestrial in nature and were deposited in an oxic to suboxic environment. Ratios of 20S/(20S + 20R)ααC29 cholestanes, 20S/(20S + 20R)ββC29 cholestanes, βα/(βα + αβ) C30 hopanes, Ts/Ts + Tm C27 hopanes and other maturity parameters suggest that Lafia-Obi is highest in maturity (peak oil window), followed by Lamza (early oil window) and then Kumo (immature).


Total Organic Carbon Coal Sample Niger Delta Hydrocarbon Generation Vitrinite Reflectance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



We thank the German Academic Exchange (DAAD) and European Association of Organic Geochemists (EAOG) for a study fellowship and travel grant to the first author.


  1. 1.
    Durand B, Paratte M (1983) Oil potential of coals: a geochemical approach. In: Brooks J (ed) Petroleum geochemistry and exploration of Europe. Blackwell Scientific Publishing, Boston, pp 255–265Google Scholar
  2. 2.
    Horsfield B, Yordy KL, Crelling JC (1988) Determining the petroleum generating potential of coal using organic geochemistry and organic petrology. Org Geochem 13:121–129CrossRefGoogle Scholar
  3. 3.
    Hendrix MS, Brassel SC, Carrol AR, Graham SA (1995) Sedimentology, organic geochemistry, and petroleum potential of Jurassic coal measures: Tarim, Junggar, and Turpan basins, northwest China. AAPG Bull 79:929–959Google Scholar
  4. 4.
    Petersen HI (2006) The petroleum generation potential and effective oil window of humic coal related to coal composition and age. Coal Geol 67:221–248CrossRefGoogle Scholar
  5. 5.
    Obaje NG, Wehner H, Abubakar MB, Isah MT (2004) Nasara-I well, Gongola basin (Upper Benue trough, Nigeria): source-rock evaluation. Petrol Geol 27:191–206CrossRefGoogle Scholar
  6. 6.
    Abubakar MB, Dike EFC, Obaje NG, Wehner H, Scheeder G, Jauro A (2008) Petroleum prospectivity of cretaceous formations in the Gongola basin, upper Benue trough, Nigeria. An organic geochemical perspective on a migrated oil controversy. Petrol Geol 31:387–408CrossRefGoogle Scholar
  7. 7.
    Teerman SC, Hwang RJ (1991) Evaluation of the liquid hydrocarbon potential of coal by artificial maturation techniques. Org Geochem 17:749–764CrossRefGoogle Scholar
  8. 8.
    Obaje NG, Wehner H, Scheeder G, Abubakar MB, Jauro A (2004) Hydrocarbon prospectivity of Nigeria’s inland basins: from the viewpoint of organic geochemistry and organic petrology. AAPG Bull 88:325–353CrossRefGoogle Scholar
  9. 9.
    Jauro A, Obaje NG, Agho MO, Abubakar MB, Tukur A (2007) Organic geochemistry of cretaceous Lamza and Chikila coals, upper Benue trough, Nigeria. Fuel 86:520–532CrossRefGoogle Scholar
  10. 10.
    Benkhelil J (1989) The origin and evolution of cretaceous Benue trough, Nigeria. Afr Earth Sci 8:251–282CrossRefGoogle Scholar
  11. 11.
    Weiss HM, Wilhems A, Mills N, Scotchmer J, Hall PB, Lind K, Brekke T (2000) The Norwegian industry guide to organic geochemical analyses [online]. Edition 4.0 Norsk Hydro Statoil, Geolab Nor. SINTEF Petroleum Research and the Norwegian Petroleum Directorate. Accessed 17 Mar 2006
  12. 12.
    Diessel CFK (1992) Coal-bearing depositional systems. Springer, Berlin/Heidelberg, p 721CrossRefGoogle Scholar
  13. 13.
    Sykes R, Snowdon LR (2002) Guidelines for assessing the petroleum potential of coaly source rocks using rock-eval pyrolysis. Org Geochem 33:1441–1455CrossRefGoogle Scholar
  14. 14.
    Peters KE, Cassa MR (1994) Applied source rock geochemistry. In: Magoon LB, Dow WG (eds) The petroleum systems from source to trap, AAPG Memoir 60. AAPG, Tulsa, pp 93–120Google Scholar
  15. 15.
    Hunt JM (1991) Generation of gas and oil from coal and other terrestrial organic matter. Org Geochem 17:673–680CrossRefGoogle Scholar
  16. 16.
    Killops SD, Carlson RMK, Peters KE (2000) High temperature GC evidence for the early formation of C40+ n-alkanes in coals. Org Geochem 31:589–597CrossRefGoogle Scholar
  17. 17.
    Illich HA (1983) Pristane, phytane and lower molecular weight isoprenoid distributions in oils. AAPG Bull 67:385–393Google Scholar
  18. 18.
    Tegelaar EW, Mathezing RM, Jansen JBH, Horsfield B, De Leeuw JW (1989) Possible origin of n-alkanes in high wax crude oils. Nature 342:529–531CrossRefGoogle Scholar
  19. 19.
    Horsfield B (1997) The bulk composition of first-formed petroleum in source rocks. In: Welte DH, Horsfield B, Baker DR (eds) Petroleum and basin evolution. Springer, Berlin, pp 335–402CrossRefGoogle Scholar
  20. 20.
    Didyk BM, Simoneit BRT, Brassel SC, Eglinton G (1978) Organic geochemical indicators of paleoenvironmental conditions of sedimentation. Nature 272:216–222CrossRefGoogle Scholar
  21. 21.
    Haven HL, de Leeuw JW, Rullkötter J, Sinninghe DJS (1987) Restricted utility of the pristane/phytane ratio as a paleoenvironmental indicator. Nature 330:641–643CrossRefGoogle Scholar
  22. 22.
    Amajiya H, Schwarzbauer J, Littke R (2006) Organic geochemistry of the Lower Suban coal seam, south Sumatra basin, Indonesia: paleoecological and thermal metamorphism implications. Org Geochem 37:261–279CrossRefGoogle Scholar
  23. 23.
    Bray EE, Evans ED (1961) Distribution of n-paraffins as a clue to recognition of source bed. Geochim Cosmochim Acta 22:2–15CrossRefGoogle Scholar
  24. 24.
    Charrié-Duhaut A, Lemoine S, Adam P, Connan J, Albrecht P (2000) Abiotic oxidation of petroleum bitumens under natural conditions. Org Geochem 31:977–1003CrossRefGoogle Scholar
  25. 25.
    Murray AP, Sosrowidjojo IB, Alexander R, Kagi RI, Norgate CM, Summons RE (1997) Oleananes in oils and sediments: evidence of marine influence during early diagenesis? Geochim Cosmochim Acta 61:1261–1276CrossRefGoogle Scholar
  26. 26.
    Karrer W, Cherbuliez E, Eugster CH (1977) Konstitution und Vorkommen der Organischen Pflanzenstoffe. Ergänzungsband I., Birkhaüser, Basel, StuttgartGoogle Scholar
  27. 27.
    Ekweozor CM, Udo OT (1988) The Oleananes origin, maturation and limits of occurrence in southern Nigeria sedimentary basins. Org Geochem 13:131–140CrossRefGoogle Scholar
  28. 28.
    Peters KE, Clifford CE, Moldowan JM (2005) The biomarker guide, 2nd edn. Prentice Hall, New JerseyGoogle Scholar
  29. 29.
    Borrego AG, Blanco CG, Püttmann W (1997) Geochemical significance of the aromatic hydrocarbons distribution in the bitumens of Puertollano oil shales, Spain. Org Geochem 26:219–228CrossRefGoogle Scholar
  30. 30.
    MacKenzie AS, Patience RL, Maxwell JR, Vandenbroucke M, Durand B (1980) Molecular parameters of maturation in the Toarcian shales, Paris basin, France – I. Changes in the configuration of acyclic isoprenoid alkanes, steranes and triterpanes. Geochim Cosmochim Acta 44:1709–1721CrossRefGoogle Scholar
  31. 31.
    Seifert WK, Moldowan JM (1980) The effects of thermal stress on source-rock quality as measured by hopane stereochemistry. Phys Chem Earth 12:229–237CrossRefGoogle Scholar
  32. 32.
    Seifert WK, Moldowan JM (1986) Use of biological markers in petroleum exploration. In: Johns RB (ed) Methods in geochemistry and geophysics, Elsevier, Amsterdam, pp 261–290Google Scholar
  33. 33.
    Kolaczkowska E, Shougui NE, Watt DS, Maruca RE, Moldowan JM (1990) Thermodynamic stability of various alkylated, dealkylated and rearranged 17α- and 17β- hopane isomers using molecular mechanics calculations. Org Geochem 16:1033–1038CrossRefGoogle Scholar
  34. 34.
    Mario GG, Ronald CS, Milton LL (1997) Generation and expulsion of petroleum and gas from almond formation coal, Greater Green River Basin, Wyoming. AAPG Bull 81:62–81Google Scholar
  35. 35.
    Farrimond P, Taylor A, Talnaes N (1998) Biomarker maturity parameters. The role of generation and thermal degradation. Org Geochem 29:1181–1197CrossRefGoogle Scholar
  36. 36.
    Littke R, Lückge A, Wilkes H (1998) Organic matter in Neogene sediments of the Southern Canary Channel, Canary Island (Sites 955 and 956). In: Weaver PPE, Schminke HU, Firth JV, Duffield W (eds) Proceedings of the ODP scientific results, College Station, Texas, pp 157–372Google Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • Aliyu Jauro
    • 1
  • Brian Horsfield
    • 2
  • Heinz Wilkes
    • 2
  • Muhammad B. Abubakar
    • 1
  1. 1.National Centre for Petroleum Research and Development (Energy Commission of Nigeria)Abubakar Tafawa Balewa UniversityBauchiNigeria
  2. 2.Organic Geochemistry SectionGeoForschungsZentrumPotsdamGermany

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