Integration of 3-D Seismic and Well Log Data for Structural Interpretation and Hydrocarbon Reserve Estimation in the “Becky” Field, Onshore Niger Delta Basin, Nigeria

Document Type : Research Paper

Authors

1 Department of Geology, Faculty of science, University of Buea, Cameroon

2 Skolkovo Institute of Science and Technology, Moscow, Russia

Abstract

Accurately, estimating hydrocarbon reserves in a field is essential to determine its economic potential. Therefore, it is crucial to conduct structural interpretation of 3-D seismic data to understand subsurface faults and reservoir geometry comprehensively. In this study,   structural interpretation of 3-D seismic data and petrophysical characterization of reservoirs in the “Becky” field onshore Niger Delta Basin was done.  The zones of hydrocarbon-bearing reservoirs in the field are located at depths of around 10 to 12 km and are found beneath the Benin Formation, with good petrophysical properties. The main structures seen on the 3D seismic sections were growth faults that have deformed the anticlines hosting the hydrocarbons, resulting in a fault-assisted anticline (3-way closure) trapping system at depths of around 9 to 12 km. Appropriate equations were used to calculate the GIIP and STOOIP, and the total volume of oil in the field is 386,255,807 barrels, and the total gas volume is 1,810,308,838 standard cubic feet. The application of qualitative well log analysis and 3D seismic structural interpretation has proven effective in delineating the architectural characteristics of reservoir units as well as estimating the hydrocarbon reserves in the field. These findings can be valuable in further exploration and development activities in the Niger Delta Basin, Nigeria.

Keywords

References

  1. Okoli, A. E., and Agbasi, O. E. (2021). Inclusive reservoir characterization from rock physics and sequence stratigraphic analyses of Middle Miocene, Niger delta. Petroleum Research, 6(3), 213-223, https://doi.org/10.1016/j.ptlrs.2021.01.001.##
  2. Nton, M.E. and Adeyemi, M.O. (2021). Evaluation of hydrocarbon reserve in AD field, Offshore Niger Delta, Open Journal of Geology, 11, 155-174. https://doi.org/10.4236/ojg.2021.115009. ##
  3. Selley, R. C. (1978). Ancient sedimentary environments, second edition. London, Chapman & Hall, 287. ##
  4. Adeoye, O. T., & Ofomola, M. O. (2013). Reservoir characterization of merit field (South Western, Niger Delta) from well log petrophysical analysis and sequence stratigraphy, The Pacific Journal of Science and Technology, 14(1), 571-585. ##
  5. Rejas, R. and Kulkarni, A. P. (2016). Reserve estimation using volumetric method, International Journal of Engineering and Technology, 3.0(10.0):1225.0–1229.0. ##
  6. Wei, Y., Jia, A., Xu, Y., & Fang, J. (2021). Progress on the different methods of reserves calculation in the whole life cycle of gas reservoir development, Journal of Natural Gas Geoscience, 6(1), 55-63, https://doi.org/10.1016/j.jnggs.2021.04.001. ##
  7. Ebong, E. D., Akpan, A. E., Ekwok, S. E., Esu, E. O., & Ebong, L. A. (2021). 3-D reservoir characterization and hydrocarbon volumetric estimation of parts of Niger Delta Basin-Nigeria, Journal of African Earth Sciences, 180, 104207, ISSN 1464-343X, https://doi.org/10.1016/j.jafrearsci.2021.104207. ##
  8. Shi, J. T., Jia, Y. R., Zhang, L. L., Ji, C. J., Li, G. F., Xiong, X. Y., Li, X.F. & Zhang, S. A. (2022). The generalized method for estimating reserves of shale gas and coalbed methane reservoirs based on material balance equation, Petroleum Science, 19(6), 2867-2878, ISSN 1995-8226, https://doi.org/10.1016/j.petsci.2022.07.009. ##
  9. Yehia, T., Abdelhafiz, M. M., Hegazy, G. M., Elnekhaily, S. A., & Mahmoud, O. (2023). A comprehensive review of deterministic decline curve analysis for oil and gas reservoirs, Geoenergy Science and Engineering, 211775, https://doi.org/10.1016/j.geoen.2023.211775. ##
  10. Emujakporue, G.,O., Faluyi, T. O. (2015). Evaluation of hydrocarbon volume in “TRH” field, onshore Niger Delta, Nigeria. Int Journal Geophysic Geochem, 2(5):113–123. ##
  11. Fajana, A. O., Ayuk, M. A., Enikanselu, P. A., & Oyebamiji, A. R. (2019). Seismic interpretation and petrophysical analysis for hydrocarbon resource evaluation of ‘Pennay’field, Niger Delta. Journal of Petroleum Exploration and Production Technology, 9, 1025-1040. ##
  12. Ayorinde, J. O., Osinowo, O. O., & Nwankwo, P. (2019). Integrated approach to reserve estimation and reservoir simulation of eni offshore field, in niger delta Nigeria, Current Journal of Applied Science and Technology, 1-14. 10.9734/cjast/2019/v38i630425. ##
  13. Oyeyemi, K. D., Olowokere, M. T., & Aizebeokhai, A. P. (2019). Prospect analysis and hydrocarbon reservoir volume estimation in an exploration field, shallow offshore depobelt, Western Niger Delta, Nigeria, Natural Resources Research, 28, 173-185. https://doi.org/10.1007/s11053-018-9377-4##
  14. Murat, R. C. (1972). Stratigraphy and paleogeography of the Cretaceous and Lower Tertiary in Southern Nigeria. African geology, 1(1), 251-266. ##
  15. Merki, J. P. (1970). Structural Geology of the Cenozoic Niger Delta. African Geology. In Procceedings of Ibadan Conference on African Geology. ##
  16. Selley, R.C. (1997). African Basins (Sedimentary Basins of the World). Volume 3, Elsevier Science B.V., Amsterdam. ##
  17. Agyingi, C. M., Agagu, O. K., Fozao, K. F., Njoh, O. A., & Ngalla, N. (2013). Depositional patterns and hydrocarbon occurrence in middle to upper Miocene strata in part of the western Niger Delta Basin, Nigeria. Journal of African Earth Sciences, 80, 21-30, doi.org/10.1016/j.jafrearsci.2012.12.001. ##
  18. Stacher P., (1995). Understanding of the Niger Delta hydrocarbon habitat. M.N. Oti, G. Postma, (Ed.), 257-267. ##
  19. Reijers, T.J.A and Nwajide, C.S. (1996). Geology of the Southern Anambra Basin. In Selected Chapters on Geology; Sedimentary Geology and Sequence Stratigraphy in Nigeria and Three Case Studies and a Field Guide, 197. ##
  20. Emujapkorue, G. O. (2015). Growth Fault History Analysis of an Oil Field, Niger Delta, Nigeria. International Journal of Geophysics and Geochemistry, 2(5), 105-112. ##
  21. Ibe, A. A., & Ezekiel, O. T. (2018). Impact of structural setting on hydrocarbon trapping mechanism of onshore Niger Delta basin, Nigeria, using seismic attribute analysis, Egyptian journal of petroleum, 27(4), 1241-1249, https://doi.org/10.1016/j.ejpe.2018.06.003. ##
  22. Short, K. C., and Stäuble, A. J. (1965).Outline of geology of Niger Delta, American Association of Petroleum Geologists Bulletin, 51, 761-779. ##
  23. Short, K.C. and Stauble, A. J. (1967). Outline of the geology of niger delta. american association of petroleum geologists bulletin, 51, 761-779. ##
  24. Doust H. and Omatsola E. (1990). Niger Delta, in Divergent/passive Margin Basins, Edwards J.D. and Santogrossi P.A. eds., AAPG Memoir 48: Tulsa, American Association of Petroleum Geologists, 239-248. ##
  25. Kulke, H. (1995). Niger Delta Geology, Journal of Petroleum, 24, 30-35. ##
  26. Whiteman, A. (1982).Nigeria, its petroleum geology, Resources and Potentials, Graham and Trontman, Ltd. 1 and 2, 394.
  27. Saadu, Y. K., & Nwankwo, C. N. (2018). Petrophysical evaluation and volumetric estimation within Central swamp depobelt, Niger Delta, using 3-D seismic and well logs, Egyptian journal of petroleum, 27(4), 531-539. ## http://dx.doi.org/10.1016/j.ejpe.2017.08.004. ##
  28. Doust, H. and Omatsola,E., (1989).Niger delta. AAPG Memoir 48, 200-248. ##
  29. Larionov, V. V., (1969). Borehole Radiometry. Moscow, U.S.S.R., Nedra. ##
  30. Schlumberger (1974). Log Interpretation Manual/Applications, 2. Schlumberger Well Service, Inc., Houston. ##
  31. Poupon, A. and Leveaux, J. (1971). Evaluation of Water Saturation in Shaly Formations. The Log Analyst, 12, 1-2. ##
  32. Fozao, K. F., Djieto-Lordon, A. E., Ali, E. A. A., Agying, C. M., Ndeh, D. M., & Zebaze Djuka, M. K. (2019). Analysis of shaly sand reservoir rocks in the eastern Niger Delta Basin using geophysical well logs, Journal of Petroleum and Gas Engineering, 10(1), 1-13. ##
  33. Tixier, M. P. (1949). Evaluation of permeability from log resistivity gradients. Oil and Gas Journal, 48, 113-122. ##
  34. Taneza, P., & Philp, R. P. (2009). A preliminary study of the sources of organic pollutants in the Iloilo River, Philippines. Environmental Forensics, 10(1), 68-81, doi: 10.1080/15275920802678727. ##
  35. Okoli, A.E., and Agbasi, O.E., (2021). Inclusive reservoir characterization from rock physics and sequence stratigraphic analyses of Middle Miocene, Niger deltaPetroleum Research, doi: https://doi.org/10.1016/j.ptlrs.2021.01.001. ##
  36. Ubuara, D. O., Olayinka, Y. A., Emujakporue, G. O., & Soronnadi-Ononiwu, G. C. (2024). Evaluation of formation susceptibility and sand production potential in an offshore field, Niger Delta Basin, Nigeria. Energy Geoscience, 5(1), 100213, ISSN 2666-7592, https://doi.org/10.1016/j.engeos.2023.100213. ##
  37. Ulasi, A. I., Onyekuru, S. O., & Iwuagwu, C. J. (2012). Petrophysical evaluation of Uzek Well using well log and core data, Offshore Depobelt, Niger Delta, Nigeria, ISSN 0976-8610. ##
  38. Ahmed, K. S., Liu, K., Moussa, H., Liu, J., Ahmed, H. A., & Kra, K. L. (2022). Assessment of petroleum system elements and migration pattern of Borno (Chad) Basin, northeastern Nigeria, Journal of Petroleum Science and Engineering, 208, 109505, https://doi.org/10.1016/j.petrol.2021.109505. ##
  39. Abdelwahhab, M. A., Ali, E. H., & Abdelhafez, N. A. (2023). Petroleum system analysis-conjoined 3D-static reservoir modeling in a 3-way and 4-way dip closure setting: insights into petroleum geology of fluvio-marine deposits at BED-2 Field (Western Desert, Egypt). Petroleum, 9(1), 8-32, https://doi.org/10.1016/j.petlm.2021.06.001. ##
  40. Ayolabi, E. A., and Adigun, A. O. (2013). The use of seismic attributes to enhance structural interpretation of “Z” ield, ofshore Niger Delta. Earth Science Research, 2(2), 223–238. ##
  41. Adiela, Uche Peters and Jayeola, A. (2017). Petrophysical Attributes of Edo-1 Well, NigerDelta, International Journal of Scientific Engineering and Science, 2. 22 – 27, ISSN 2456. ##
  42. Ndip, E. A., Agyingyi, C. M., Nton, M. E., & Oladunjoye, M. A. (2018). Seismic stratigraphic and petrophysical characterization of reservoirs of the Agbada formation in the vicinity of ‘Well M’. Offshore Eastern Niger Delta Basin, Nigeria. Journal of Geology & Geophysics, 7(331), 2, doi:10.4172/2381-8719.1000331. ##
  43. Zhouhua, W. A. N. G., Tao, W. A. N. G., Hui, L. I. U., Nan, L. I., Guangya, Z. H. U., & Ping, G. U. O. (2022). Experimental study of the development mode of gas-cap edge-water reservoir: A case study of Khasib reservoir of Halfaya oilfield in Iraq. Petroleum Exploration and Development, 49(3), 625-635, ISSN 1876-3804, https://doi.org/10.1016/S18763804(22)60052-1. ##
  44. Ojo, B. T., Olowokere, M. T., & Oladapo, M. I. (2021). Sensitivity analysis of changing reservoir saturation involving petrophysics and rock physics in ‘Royal G’field, Niger Delta. Results in Geophysical Sciences, 7, 100018, https://doi.org/10.1016/j.ringps.2021.100018. ##
  45. Rider, M. (1986). The Geological Interpretation of Well Logs. Blackie, Glasgow, 1986, 151 -165. ##
  46. Bate, B. B., Boboye, O. A., Fozao, K. F., Ndip, E. A., & Anene, N. O. (2023). Petrophysical characterization and 3D seismic interpretation of reservoirs in the Baris Field, onshore Niger Delta Basin, Nigeria. Energy Geoscience, 4(1), 103-116, ISSN 2666-7592, https://doi.org/10.1016/j.engeos.2022.02.001. ##
  47. Aizebeokhai, A. P., & Olayinka, I. (2011). Structural and stratigraphic mapping of Emi field, offshore Niger Delta, Journal of Geology and mining Research, 3(2), 25-38, ISSN 2006 - 9766. ##
  48. Harry, T. A., Etim, C. E., & Okechukwu, A. E. (2022). Petrophysical Evaluation of H-field, Niger Delta Basin for Petroleum Plays and Prospects. Materials and Geoenvironment, 69(2), 119-129, doi: 10.2478/rmzmag-2021-0020. ##
  49. Okechukwu, A. E., Sunday, E. E., Abdulaziz, A. M., Namdie, J. I., & Ubong, R. W. (2020). Estimation of Original Oil in Place Using Pickett's and Buckle's Plots, Offshore Niger Delta, Nigeria. Petroleum & Coal, 62(4), ISSN 50.1335-3055. ##

Files

Share

How to cite

Statistics