Petrophysical Investigation of the Khurmala Formation in Taq Taq Oil Field, Zagros Folded Belt

Fraidoon Rashid; Devan O. Hussein; Hawar A. Zangana

doi:10.14500/aro.10556

Fraidoon Rashid Department of Engineering, Kurdistan institution for Strategic Study and Scientific Research, Sulaimani, Kurdistan Region http://orcid.org/0000-0003-3039-4891
Devan O. Hussein Department of Geology, College of Science, University of Sulaimani, Sulaimani, Kurdistan Region http://orcid.org/0000-0001-9368-5747
Hawar A. Zangana Department of Petroleum and Energy Engineering, College of Engineering, Sulaimani Polytechnic University, Sulaimani, Kurdistan Region http://orcid.org/0000-0002-9505-5770

Keywords: Hydrocarbon, Khurmala, Porosity, Reservoir

Abstract

The Tertiary rocks of Khurmala Formation in the Taq Taq oil field have been studied using wireline log analysis, drilling cutting descriptions with integration of mud logging report, and test results for understanding reservoir potentiality and fluid distribution. The formation comprised dolostone and dolomitic limestone with an intercalation of clay layers between the recognized beds. The formation has variable thickness throughout the field, 99.8 m from the northeastern limb and 109 m in the southeastern plunge. The calculated shale volume in the studied interval shows a high rate of the clay contents which in some points the gamma ray has 100% of shale. The corrected log-derived bulk porosity subdivided the Khurmala Formation into 5 porosity units from the top to the bottom including (Kh-1, Kh-2, Kh-3, Kh-4, and Kh-5). The first (Kh-1), third (Kh-3), and fifth (Kh-5) porosity units have the average porosity ≥0.10 (10%) that can be considered as good reservoir unit in terms of porosity, whereas the shale contents reduced the reservoir quality of these units. However, well hydrocarbon entrapment through interconnected fractures and fault in the other Tertiary reservoir was recorded in Taq Taq field , but the weak connectivity of the pores in the Khurmala Formation caused this rock interval remains as water bearing zone.

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Author Biographies

Fraidoon Rashid, Department of Engineering, Kurdistan institution for Strategic Study and Scientific Research, Sulaimani, Kurdistan Region

Fraidoon Rashid is a lecturer and researcher at the department of engineering, Kurdistan institution for strategic study and scientific research. He got the B.Sc. in Geology from University of Sulaimani, the master degree from Sulaimani University in Petroleum Geology and the PhD from the University of Leeds-UK in petroleum reservoir engineering. His research interest is in reservoir engineering, petrophysics, fluid flow and permeability modelling. Dr. Fraidoon Rashid is a member in London Petrophysical Society (LPS).

Devan O. Hussein, Department of Geology, College of Science, University of Sulaimani, Sulaimani, Kurdistan Region

Devan Hussein is a lecturer at the department of geology, college of science, university of Sulaimani. She got the B.Sc. in Geology from University of Sulaimani, the master degree from Sulaimani University in Petroleum Geology and the PhD from the university of Leeds-UK in petroleum geology. Her research interest is in reservoir geology, petrophysics, diagenesis and well log analysis. Dr. Devan Hussein is a member in
Kurdistan Geology Society.

Hawar A. Zangana, Department of Petroleum and Energy Engineering, College of Engineering, Sulaimani Polytechnic University, Sulaimani, Kurdistan Region

Hawar Anwar Zangana is Assistant lecturer at the department of Petroleum and Energy Engineering, College of Engineering, Sulaimani Polytechnic University. She got the B.Sc. in Geology from Salahaddin University-Erbil, and master degree from Salahaddin University Erbil in Petroleum Geology. Her research interest is in reservoir geology, well logs analysis and geologic modeling. Ms.Hawar is a member in Kurdistan Geology Society.

References

Adam, A., Swennen, R., Abdulghania, W., Abdlmutalib, A., Hariria, M. and Abdulraheem, A., 2018. Reservoir heterogeneity and quality of Khuff carbonates in outcrops of central Saudi Arabia. Marine and Petroleum Geology, 89, pp.721-751.

Al-Qayim, B. and Othman, D., 2012. Reservoir characterization of an intra-orogenic carbonates platform: Pila spi formation, taq taq oil field, Kurdistan, Iraq. Geological Society, 370, pp.139-168.

Al-Qayim, B. and Rashid, F., 2012. Reservoir characteristics of the albian upper qamchuqa formation carbonates, taq taq oilfield, Kurdistan, Iraq. Journal of Petroleum Geology, 35, pp.317-341.

Al-Qayim, B.A. and Othman, D.H., 2010. Lithofacies association, dolomitization, and potentiality of the pila spi formation, taq taq oil field, Kurdistan region, NE Iraq. Iraqi Bulletin of Geology and Mining, 6(2), pp.95-114.

Ameen, M.S., 1991. Possible forced folding in the taurus-zagros belt of Northern Iraq. Geological Magazine, 128(6), pp.561-584.

Aqrawi, A.A.M., Goff, J.C., Horbury, A.D. and Sadooni, F.N., 2010. The Petroleum Geology of Iraq. Scientific Press, Beaconsfield. p.424.

Asquith, G. and Krygowski, D., 2004. Basic Well Log Analysis. AAPG, Tulsa, Oklahoma. p.244.

Bhuyan, K. and Passey, Q.R., 1994. Clay Estimation from Gamma Ray and Neutron-density Porosity Logs. SPWLA, 35th Annual Logging Symposium, Tulsa.

Dahlberg, K.E., 1989. A Practical Model for Analysis of Compensated Neutron Logs in Complex Formations. SPWLA Annual Logging Symposium, Denver.

Ellis, D.V. and Singer, J.M., 2007. Well Logging for Earth Scientists. Netherlands Springer, Dordrecht.

Garland, C.R., Abalioglu, I., Akca, L., Cassidy, A., Chiffoleau, Y., Godail, L., Grace, M.A.S., Kader, H.J., Khalek, F., Legarre, H., Nazhat, H.B. and Sallier, B., 2010. Appraisal and development of the Taq Taq field, Kurdistan region, Iraq. Geological Society, London, Petroleum Geology Conference Series, 7, pp.801-810.

Ghafur, A.A. and Hasan, D.A., 2017. Petrophysical properties of the upper qamchuqa carbonate reservoir through well log evaluation in the Khabbaz oilfield. Journal of Science and Engineering, 1(1), pp.72-88.

Hollis, C., 2011. Diagenetic on controls reservoir properties of carbonate successions within the Albian turonian of the Arabian plate. Petroleum Geoscience, 17, pp.223-241.

Hollis, C., Lawrence, D.A., Perière, M.D., Al Darmaki, F., 2017. Controls on porosity preservation within a Jurassic oolitic reservoir complex, UAE. Marine and Petroleum Geology, 88, pp.888-906.

Hussein, D., Collier, R., Lawrence, J., Rashid, F., Glover, P.W.J., Lorinczi, P. and Baban, D.H., 2017. Stratigraphic correlation and paleoenvironmental analysis of the hydrocarbon-bearing early miocene euphrates and jeribe formations in the Zagros folded thrust-belt. Arabian Journal of Geosciences, 10, pp.543-554.

Hussein, D., Lawrence, J., Rashid, F., Glover, P. and Lorinczi, P., 2018. Developing Pore Size Distribution Models in Heterogeneous Carbonates Using Especially Nuclear Magnetic Resonance. In: Engineering in Chalk: Proceedings of the Chalk 2018 Conference. ICE Publishing, London. pp.529-534.

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.

Jafarian, A., Fallah-Bagtash, R., Mattern, F. and Heubeck, C., 2017. Reservoir quality along a homoclinal carbonate ramp deposit: The permian upper Dalan formation, South pars field, Persian Gulf Basin. Marine and Petroleum Geology, 88, pp.587-604.

Jassim, S.Z. and Goff, J.C., 2006. The Geology of Iraq. Dolin, Prague. p.341.

Kamel, M.H. and Mabrouk, W.M., 2003. Estimation of shale volume using a combination of the three porosity logs. Journal of Petroleum Science and Engineering, 20, pp.145-157.

Krygowski, D.A., 2003. Guide to Petrophysical Interpretation. Wyoming University, Austin Texas USA. p.147.

Mackertich, D.S. and Samarrai, A.I., 2015. History of hydrocarbon exploration in the Kurdistan region of Iraq. GeoArabia, 20(2), pp.181-220.

Normi, R. and Standen, E., 1997. Middle East Evaluation Well Review.

North Oil Company-Kirkuk (NOC), 1987. Final Well Report of Exploration Well Number 1 in Taq Taq Oil Field.

Rashid, F., Glover, P.W.J., Lorinczi, P., Collier, R. and Lawrence, J., 2015a. Porosity and permeability of tight carbonate reservoir rocks in the North of Iraq. Journal of Petroleum Science and Engineering, 133, pp.147-161.

Rashid, F., Glover, P.W.J., Lorinczi, P., Hussein, D. and Lawrence, J., 2017. Microstructural controls on reservoir quality in tight oil carbonate reservoir rocks. Journal of Petroleum Science and Engineering, 156, pp.814-826.

Rashid, F., Glover, P.W.J., Lorinczi, P., Hussein, D., Collier, C. and Lawrence. J., 2015b. Permeability prediction in tight carbonate rocks using capillary pressure measurements. Marine and Petroleum Geology, 68, pp.536-550.

Rashid, F., Hussein, D., Lawrence, J.A. and Khanaqa, P., 2020. Characterization and impact on reservoir quality of fractures in the cretaceous qamchuqa formation, Zagros folded belt. Marine and Petroleum Geology, 113, pp.104-117.

Rashid, F.N., 2015. The Kometan Formation: Reservoir Characteristics of Tight Carbonates in the Western Zagros Basin. Doctoral Dissertation, University of Leeds.

Rider, M.H. and Kenedy, M., 2011. The Geological Interpretation of Well Logs. Rider-French Consulting Ltd., Sutherland. p.280.

Ryder Scott Company, 2011. Estimated Unrisked Discovered and Undiscovered Total Petroleum Initially in Place Attributable to Certaininterests in the Shaikan License Block, Kurdistan, Iraq. Report Prepared for Gulf Keystone Petroleum Ltd., Iraq.

Schlumberger, 1997. Log Interpretation/Charts. Schlumberger Wireline and Testing, Houston, USA.

Schlumberger, 2012. Definition of porosity: How porosity is measured. Oil Field Review Autumn, 24(3), pp.63-64.

Sherwani, G.H. and Zangana, H.A. 2017. Reservoir characterization of early jurassic formations in selected wells in the duhok governorate, Iraqi Kurdistan region. Journal of Science and Engineering, 1(1), pp.11-18.

Taq Taq Operation Company, 2006. Final Well Report of Development Well Number 5 in Taq Taq Oil Field.

Taq Taq Operation Company, 2007. Final Well Report of Development Well Number 7 in Taq Taq Oil Field.

Van Bellen, R.C., Dunnington, H.V., Wetzel, R. and Morton, D.M., 1959. Lexique Stratigraphique International: 03 10 Asie (Iraq). Paris: Centre National de la Recherche Scientifique Reprinted by Gulfpetro Link, 2005.

Wiley, R. and Pachett, J.G., 1990. CNL (Compensated Neutron Log) Neutron Porosity Modeling, a Step Forward. SPWLA 30th Annual Logging Symposium.

Zebari, M.M. and Burberry, C.M., 2015. 4-D evolution of anticlines and implications for hydrocarbon exploration within the Zagros fold-thrust belt, Kurdistan region, Iraq. GeoArabia, 20, pp.161-188.