Reservoir Characteristics of the Lower Miocene Carbonate Formations in Kor Mor Gasfield, Kirkuk Area, NE Iraq
Article Sidebar
Main Article Content
Abstract
This paper presents the evaluations of the reservoir characterization of the Lower Miocene Euphrates, and Jeribe carbonate formations selected for this study in Kor Mor Gasfield in Northeastern Iraq. The thickness of Euphrates ranges between 30 and 65m, and Jeribe between 30 and 50m in this field. They are overlain by a thick evaporate cap rock of the Fatha Formation. The two formations are separated by the thin evaporate rock unit of the Dhiban Formation. The full set of log data for the well Km-9 was used in addition to some general data derived from other eight wells (Km-1 to Km-8). The log data was used in evaluating the reservoir properties of the two rock units. The detected lithologies from the available mud log and well reports showed that the two formations, mostly dolostone and dolomitic limestone, were dominated. From the log data, different reservoir properties including clay content, clay types, porosity, and fracture index were estimated. The average porosity of the Euphrates reservoir was around 0.15 and that of the Jeribe was about 0.10. The secondary porosity made a significant fraction of porosity in both units.
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
Tikrit Journal of Pure Science is licensed under the Creative Commons Attribution 4.0 International License, which allows users to copy, create extracts, abstracts, and new works from the article, alter and revise the article, and make commercial use of the article (including reuse and/or resale of the article by commercial entities), provided the user gives appropriate credit (with a link to the formal publication through the relevant DOI), provides a link to the license, indicates if changes were made, and the licensor is not represented as endorsing the use made of the work. The authors hold the copyright for their published work on the Tikrit J. Pure Sci. website, while Tikrit J. Pure Sci. is responsible for appreciate citation of their work, which is released under CC-BY-4.0, enabling the unrestricted use, distribution, and reproduction of an article in any medium, provided that the original work is properly cited.
References
[1] Al-Sakini, J.A., 1992. Summary of petroleum geology of Iraq and the Middle East: Kirkuk. Northern Oil Company Press, Iraq (in Arabic, p 179). [2] Al-Ameri, T.K., Zumberge, J. and Markarian, Z.M., 2011. Hydrocarbons in The Middle Miocene Jeribe Formation, Dyala Region, NE Iraq. Journal of Petroleum Geology, 34(2), pp.199-216. [ 3] Hussein, D.O., 2015. Reservoir characterization of ramp carbonates: Lessons from the Lower Miocene Euphrates and Jeribe Formations, Kurdistan, N. Iraq (Doctoral dissertation, University of Leeds). [4] Baban, D. and Hussein, H.S., 2016. Characterization of the Tertiary reservoir in Khabbaz Oil Field, Kirkuk area, Northern Iraq. Arabian Journal of Geosciences, 9(3), pp.1-19. [5] Hussein D, Collier R, Lawrence J, Rashid F, Glover P, Lorinczi P, Baban D (2017) Stratigraphic correlation and paleoenvironmental analysis of the hydrocarbon-bearing Early Miocene uphrates and Jeribe formations in the Zagros folded-thrust belt. Arab J Geosci 10:543 [ 6] Saeed, M. B. 2017. Reservoir Characterization of The Jeribe Formation (Middle Miocene) From Selected Wells in Hamrin Oil Field, Northern Iraq (Msc. Dissertation, University of Sulaimani) [7] Abdullah H G., & R. E. L. Collier & N. P. Mountney(2019), The palaeoshoreline of Early Miocene formations (Euphrates and Jeribe) at the periphery of the Zagros Foreland Basin, Sulaimani Governorate, Kurdistan Region, NE Iraq. Arabian Journal of Geosciences (2019) 12: 574. [ 8] Fadhil, D.T., Yonus, W.A. and Theyab, M.A., 2020. Reservoir characteristics of the Miocene age formation at the Allas Dome, Hamrin Anticline, Northern Iraq. MMD J, 14, pp.17-23. [9 ] Abdulrahman Salam S., Manal S. Al-Kubaisi and Ghazi H. Al-Shara'a, 2020. Formation Evaluation for
Jeribe Formation in the Jaria Pika Gas Field. Iraqi Geological Journal, 53 (2F), 2020: 83-93 [ 10] Deabl, R.A., Ramadhan, A.A. and Aldabaj, A.A., 2021. Evaluation of Petrophysical Properties Interpretations from Log Interpretation for Tertiary Reservoir/Ajeel Field. Iraqi Journal of Oil & Gas Research, 1(1). [11] Addendum to Geological Appraisal Well (Km-9) on the Kor Mor Structure, Zagros Fold Belt, Kurdistan Region, Iraq 2008. [12] Km-9 Final well report, Dana Gas , 2009. [13] Buday, T. and Jassim, S.Z., 1987. The Regional geology of Iraq: Tectonism Magmatism, and Metamorphism. II Kassab and MJ Abbas. Baghdad, 445. [14] Mohialdeen, I.M., Fatah, S.S., Abdula, R.A., Hakimi, M.H., Abdullah, W.H., Khanaqa, P.A. and Lunn, G.A., 2022. Stratigraphic Correlation and Source Rock Characteristics of the Baluti Formation from Selected Wells in the Zagros Fold Belt, Kurdistan Region, Northern Iraq. Journal of Petroleum Geology, 45(1), pp.29-56 [15] Iraq Development potential, 2003. Iraq Field Atlas part2 (p30, 118). [16] Aqrawi AA, Horbury A, Sadooni F (2010) The Petroleum Geology of Iraq. Wiley Online Library, Beaconsfield [17] Jassim, S. Z., and M. Al-Gailani (2006) ″ Chapter 18: Hydrocarbons″ in Geology of Iraq, (1st ed.), Edited by Jassim S. Z., and Goff J. C. PP. 169-184. Brno, Czech Republic: Dolin, Prague and Moravian Museum [18] Bellen, R.C. van, Dunnington, H.V., Wetzel, R. & Morton, M. (eds.), (1959) “Lexique stratigraphic international”, Paris, v. III, Asie, Fascicule 10a Iraq. 333 p. [19] Prazak, J., 1974. Stratigraphy and paleontology of the Miocene of the Western Desert, W. Iraq. Manuscript report, GEOSURV, Baghdad. [20] De Böckh, H., Lees, G. M., and Richardson, F. D. S., 1929. The Structure of Asia (edited by Gregory, J. W.), chapter iii and Postscript. [21] Rider, M H., 2002, The geological interpretation of well logs, 2nd edition. Rider-French Consulting Ltd, pp.280 [22] Larionov, V.V., 1969. Radiometry of boreholes. Nedra, Moscow, 127p. [23] Asquith, G.B., Krygowski,. 2004. Basic well log analysis (Vol. 16). Tulsa: American Association of Petroleum Geologists. [24] M. Ghorab, Mohmed A.M. Ramadan and A.Z. Nouh. 2008. The Relation Between the Shale Origin (Source or non Source) and its Type for Abu Roash Formation at Wadi El-Natrun Area, South of Western Desert, Egypt. Australian Journal for Basic and Applied Sciences, 2(3), p.360. [25] Erin M. Mcgowan, 2015. Spectral Gamma Ray Characterization Of The Elko Formation, Nevada-A Case Study For A Small Lacustrine Basin. Master Thesis, Department of Geosciences, Colorado State University, Fort Collins, Colorado. [26] Schlumberger (2009) “Log Interpretation Charts”. Sguard Land, Texas. [27] Brown, S.J. (1963) Handbook of Well-Log Analysis for Oil and Gas Formation Evaluation: Printice-Hall International Incorporated, London, p.21. [28] Bassiouni, Z., 1994. Theory, measurement, and interpretation of well logs (Vol. 4, p.372). Dallas, TX, USA: Henry L. Doherty Memorial Fund of AIME, Society of Petroleum Engineers. [29] Asquith, G.B. and Gibson, C.R., 1982. Basic well log analysis for geologists (Vol. 3). Tulsa: American Association of Petroleum Geologists. [30] Dewan, J.T., 1983. Essentials of modern open-hole log interpretation: PennWell Publishing Company, Tulsa, Oklahoma, 361 p. [31] Schlumberger, D., 1972. Vorôd l'agoranome. Syria, pp.339-341. [32] Choquette, P.W. and Pray, L.C., 1970. Geologic nomenclature and classification of porosity in sedimentary carbonates. AAPG bulletin, 54(2), pp.207-250. [33] Heinemann, Z. and Mittermeir, G., 2013. Fluid flow in porous media. The Textbook series of the PHDG is an aid for PhD students. Roseggerstr. E-Mail: phdg@a1.net