International Peer-Reviewed Journal•Open Access•ISSN 2456-8880
irejournals@gmail.com•+91-7433024337

Home / Current Issue / Paper 1715695

1715695 Vol 9 · Issue 9 Download Paper

Hydrocarbon Indication Using Petrophysical Well Logs in the Niger Delta Basin: Insights from ZIP Field

Okewu Godwin Onah Olaniyan, Oloruntoba James Jaggu Yohanna Jaggu Alaji Innocent Chubiyojo Adakole Ochai Innocent Danjuma Bala Umar Jita Aondona Peter

Subject area: Physical Sciences and Environment  ·  Area of research: Geophysical Survey Data Interpretation

DOI: 10.64388/IREV9I9-1715695

Abstract

This study evaluates hydrocarbon potential in the onshore Niger Delta Basin through detailed petrophysical well log analysis of four wells (ZIP1–ZIP4) in the ZIP Field. Using gamma ray, resistivity, and density logs interpreted in RokDoc software, key reservoir properties are volume of shale (Vsh), porosity (ϕ), water saturation (Sw), hydrocarbon saturation (Sh), bulk volume of water (BVW), permeability (K), and net-to-gross ratio (NGR) were determined for three primary reservoir units (Z1000, Z2000, and Z3000). Crossplots and log correlations revealed lateral lithological variations and identified clean sand intervals with favourable hydrocarbon indicators. Z2000 emerged as the most promising reservoir, showing low shale content (<5%), high porosity (up to 42%), low water saturation (14–25%), and permeability values supporting fluid flow. Diagnostic plots effectively discriminated between hydrocarbon-bearing sands, wet sands, and shales. The results demonstrate the efficacy of integrated petrophysical evaluation for delineating productive zones and guiding exploration strategies in the Niger Delta Basin.

Keywords

Petrophysical Analysis, Well Logs, Hydrocarbon Potential, Niger Delta Basin, Porosity, Water Saturation, Permeability, And Reservoir Characterization.

References

[1] Shaltami, O.R. (2021). Wireline Log Interpretation. Department of Earth Sciences Faculty of Science, Benghazi University, Libya. Pp 3. https://www.researchgate.net/publication/352478695

[2] Ishwar, N.B. and Bhardwa, A. (2013). Petrophysical Well Log Analysis for Hydrocarbon exploration in parts of Assam Arakan Basin, India. 10th Biennial International Conference & Exposition. Pp 153.

[3] Wyllie, M.R.J., Gregory, A.R. and Gardner, L.W. (1956). Elastic wave velocities in heterogeneous and porous media, Geophysics, 22, 4.

[4] Batzle, M. and Wang, Z. (1992). Seismic properties’ of pore fluids, Geophysics, 57.

[5] Winkler, K.W. and Murphy III, M.F. (1995). Schlumberger-Doll research, Old Quarry Road, Ridgefield, CT 06877-4108.

[6] Oyeyemi KD, Olowokere MT, Aizebeokhai AP (2017) Evaluation of optimal reservoir prospectivity using acoustic impedance model inversion: a case study of an offshore field, Western Niger Delta, Nigeria. NRIANG J Astron Geophys 6:300–310.

[7] Omoja UC, Obiekezie TN (2019) Application of 3D seismic attribute analyses for hydrocarbon prospectivity in Uzot-field. Int J Geophys, Onshore Niger Delta Basin, Nigeria. https ://doi. org/10.1115/2019/17064 16.

[8] Munyithya JM, Ehirim CN, Dagogo T (2020) Reflectivity and spectral attribute-based reservoir characterization: a case study from “MUN” onshore Niger Delta field. J Pet Explor Prod Technol, Nigeria. https ://doi.org/10.1007/s1320 2-020-00922-4.

[9] Ideozu, R.U and Solomon, E. (2018). Sedimentological Charateristics Of The Ajali And Benin Formations Around Arochukwu – Odoro Ikpe Axis Southeast Nigeria. Scientia Africana, Vol. 16 (No. 2), December 2017. Pp 291-313.

[10] Oyebanjo, O.M, Ekosse, G.E and Odiyo, J.O. (2018). Mineral Constituents and Kaolinite Crystallinity of the < 2 µm Fraction of Cretaceous-Paleogene/Neogene Kaolins from Eastern Dahomey and Niger Delta Basins, Nigeria. Open Geosciences. 10(1):157-166.

[11] Michele, L. W. Tuttle, Michael E. Brownfield, and Ronald R. Charpentie (1999). The Niger Delta Petroleum System: Niger Delta Province, Nigeria, Cameroon, and Equatorial Guinea, Africa. U. S. Geological Survey Open File Report 99-50H.

[12] Haack, R. C, Sundararaman, P, Diedjomahor J.O, Xiao H, Gant, N. J, May E.D, and Kelsch, K. (2000). Niger Delta Petroleum Systems, Nigeria. American Association of Petroleum Geologists. https://doi.org/10.1306/M73705C16

[13] Kamayou, V. Ehirim, C. and Ikiensikimama, S. (2021). Estimating Volume of Shale in a Clastic Niger Delta Reservoir from Well Logs: A Comparative Study. International Journal of Geosciences, 12, 949-959. doi: 10.4236/ijg.2021.1210049.

[14] Akpan, A.S, Okeke, F.N, Obiora, D.N, Ibuot, J.C. (2020). Fluid substitution modelling and derived rock attribute‑based discriminations of hydrocarbon and lithology: a case study of arcuate Niger Delta Depobelt, Nigeria. Springer Nature (NS Applied Sciences). https://doi.org/10.1007/s42452-020-03855-z

[15] Kenechi Junior Obimma1, Daniel N. Obiora, Andrew I. Oha, Johnson C. Ibuot1,

[16] John A. Yakubu (2021). Seismic and Petrophysical Characterization of Reservoirs in Kjoe Field, On-Shore Niger Delta, Nigeria. Petroleum and Coal.

[17] Egbele, C., Osokogwu, U., and Isibor, A. (2005). Net-To-Gross Ratios: Implications in Integrated Reservoir Management Studies. SPE Nigeria Annual International Conference and Exhibition. Society of Petroleum Engineers. DOI: 10.2118/94290-MS

[18] Asquith, G.B., and Krygowski, D. (2004). Basic Well Log Analysis (2nd Edition). AAPG Methods in Exploration Series. ISBB

[19] Tiab, D., and Donaldson, E.C. (2015). Petrophysics: Theory and Practice of Measuring Reservoir Rock and Fluid Transport Properties (4th Ed.). Elsevier. ISBN: 9780128031880

[20] Archie, Gus E. (1942). The Electrical Resistivity Log as an Aid in Determining Some Reservoir Characteristics. Transactions of the AIME, Vol. 146, pp. 54-62

[21] Okewu, G. O., Ugbor, D. O., Johnson Ibuot, Yakubu, J. A., Okoro, M. E., & Kentsa T. S. (2024). Seismic Attributes Analysis and Petrophysical Evaluation of Reservoir Sand Units in “Mars” Field, Onshore Niger Delta Basin, Nigeria. Petroleum and Coal.

[22] Pet Coal (2024); 66(4): 1320-1336 ISSN 1337-7027 an open access journal.

[23] Nton, M. E., & Adeyemi, M. O. (2021). Evaluation of Hydrocarbon Reservoir in AD Field, Offshore Niger. Open Journal of Geology Vol.11 No.5

How to cite this paper

Okewu Godwin Onah, Olaniyan, Oloruntoba James, Jaggu Yohanna Jaggu, Alaji Innocent Chubiyojo; Adakole Ochai Innocent, Danjuma Bala Umar; Jita Aondona Peter "Hydrocarbon Indication Using Petrophysical Well Logs in the Niger Delta Basin: Insights from ZIP Field" Iconic Research And Engineering Journals Volume 9 Issue 9 2026 Page 3341-3351 https://doi.org/10.64388/IREV9I9-1715695
Okewu Godwin Onah, Olaniyan, Oloruntoba James, Jaggu Yohanna Jaggu, Alaji Innocent Chubiyojo; Adakole Ochai Innocent, Danjuma Bala Umar; Jita Aondona Peter "Hydrocarbon Indication Using Petrophysical Well Logs in the Niger Delta Basin: Insights from ZIP Field" Iconic Research And Engineering Journals, vol. 9, no. 9, Mar. 2026, doi: https://doi.org/10.64388/IREV9I9-1715695
Okewu Godwin Onah, Olaniyan, Oloruntoba James, Jaggu Yohanna Jaggu, Alaji Innocent Chubiyojo; Adakole Ochai Innocent, Danjuma Bala Umar; Jita Aondona Peter (2026). Hydrocarbon Indication Using Petrophysical Well Logs in the Niger Delta Basin: Insights from ZIP Field. Iconic Research And Engineering Journals, 9(9). doi: https://doi.org/10.64388/IREV9I9-1715695
Okewu Godwin Onah, Olaniyan, Oloruntoba James, Jaggu Yohanna Jaggu, Alaji Innocent Chubiyojo; Adakole Ochai Innocent, Danjuma Bala Umar; Jita Aondona Peter "Hydrocarbon Indication Using Petrophysical Well Logs in the Niger Delta Basin: Insights from ZIP Field" Iconic Research And Engineering Journals, vol. 9, no. 9, Mar. 2026. Crossref, https://doi.org/10.64388/IREV9I9-1715695
@article{1715695,
      author = {Okewu Godwin Onah, Olaniyan, Oloruntoba James, Jaggu Yohanna Jaggu, Alaji Innocent Chubiyojo; Adakole Ochai Innocent, Danjuma Bala Umar; Jita Aondona Peter},
      title = {Hydrocarbon Indication Using Petrophysical Well Logs in the Niger Delta Basin: Insights from ZIP Field},
      journal = {Iconic Research And Engineering Journals},
      year = {2026},
      volume = {9},
      number = {9},
      pages = {3341-3351},
      issn = {2456-8880},
      url = {https://www.irejournals.com/formatedpaper/1715695.pdf},
      abstract = {This study evaluates hydrocarbon potential in the onshore Niger Delta Basin through detailed petrophysical well log analysis of four wells (ZIP1–ZIP4) in the ZIP Field. Using gamma ray, resistivity, and density logs interpreted in RokDoc software, key reservoir properties are volume of shale (Vsh), porosity (ϕ), water saturation (Sw), hydrocarbon saturation (Sh), bulk volume of water (BVW), permeability (K), and net-to-gross ratio (NGR) were determined for three primary reservoir units (Z1000, Z2000, and Z3000). Crossplots and log correlations revealed lateral lithological variations and identified clean sand intervals with favourable hydrocarbon indicators. Z2000 emerged as the most promising reservoir, showing low shale content (<5%), high porosity (up to 42%), low water saturation (14–25%), and permeability values supporting fluid flow. Diagnostic plots effectively discriminated between hydrocarbon-bearing sands, wet sands, and shales. The results demonstrate the efficacy of integrated petrophysical evaluation for delineating productive zones and guiding exploration strategies in the Niger Delta Basin.},
      keywords = {Petrophysical Analysis, Well Logs, Hydrocarbon Potential, Niger Delta Basin, Porosity, Water Saturation, Permeability, And Reservoir Characterization.},
      month = {March},
      doi = {https://doi.org/10.64388/IREV9I9-1715695}
  }