Effect of Heterogeneity on Capillary Pressure and Relative Permeability Curves in Carbonate Reservoirs. A Case Study for Mishrif Formation in West Qurna/1 Oilfield, Iraq
DOI:
https://doi.org/10.31699/IJCPE.2023.1.3Keywords:
Heterogeneity; Relative Permeability; Capillary Pressure; Mishrif; West Qurna; secondary recovery, wettability.Abstract
The special core analysis tests were accomplished on a set of core plugs for Mishrif Formation (mA, mB1, and mB2cde/mC units) in West Qurna/1 oilfield, southern Iraq. Oil relative permeability (Kro) data and the Corey-type fit of the data as functions of the brine saturation at the core outlet face for individual samples in the water-oil imbibition process to estimate relative permeability measurements by the centrifuge method were utilized. Identical correlations for oil and water relative permeabilities were extracted by steady-state and unsteady-state methods. For the mA samples, the gas-water capillary pressure curves were within a narrow range (almost identical) indicating that mA is a homogeneous unit. Kro curves for three mB2ab plugs were practically identical, that is referring to the homogeneity in the upper portion of the unit. The mB2 unit has a more solid‐phase concentration than other units. In addition, the general trend of low residual oil saturation is related to the raising in porosity but no reliable correlation between the residual oil saturation to water drive (Sorw) and Klinkenberg-corrected permeability (Kinf). Based on the correlation between the effective oil permeability at the initial water saturation [ko(Swi)] and (Kinf/f)1/2 for the high-permeability lithofacies mB1 plugs, ko(Swi) is approximately equal to or exceeds Kinf. While ko(Swi) was below Kinf for the other samples. New good empirical equations were obtained for effective gas permeability at final water saturation versus Kinf, as well as, for Kro and Krw versus saturation for all lithofacies.
Received on 03/08/2022
Received in Revised Form on 29/08/2022
Accepted on 31/08/2022
Published on 30/03/2023
References
Hutchinson, C. A., C. F. Dodge, and T. L. Polasek. "Identification, classification and prediction of reservoir nonuniformities affecting production operations." Journal of Petroleum Technology 13.03, 1961, pp 223-230. https://doi.org/10.2118/1576-G-PA.
Zeito, George A. "Interbedding of shale breaks and reservoir heterogeneities." Journal of Petroleum Technology 17.10, 1965, pp 1223-1228. https://doi.org/10.2118/1128-PA.
Dodge, Charles F., Dennis P. Holler, and Robert L. Meyer. "Reservoir heterogeneities of some Cretaceous sandstones." AAPG Bulletin 55.10, 1971, pp 1814-1828. https://doi.org/10.1306/819A3DAA-16C5-11D7-8645000102C1865D.
McClure, James E., et al. "The LBPM software package for simulating multiphase flow on digital images of porous rocks." Computational Geosciences 25.3, 2021, pp 871-895. https://doi.org/10.1007/s10596-020-10028-9.
Al-Sudani, Jalal Abdulwahid, Rwaida Kaiser, and Salam J. Al-Rubeai. "Estimation liquid permeability using air permeability laboratory data." Iraqi Journal of Chemical and Petroleum Engineering 15.1, 2014, pp 43-50.
Semnani, Ali Khosravani, Hamidreza Shahverdi, and Ali Reza Khaz'ali. "Averaging the experimental capillary pressure curves for scaling up to the reservoir condition in the imbibition process." Journal of Petroleum Science and Engineering 184, 2020: 106539. https://doi.org/10.1016/j.petrol.2019.106539.
Hosseinzadeh, Sirous, Ali Kadkhodaie, and Saeed Yarmohammadi. "NMR derived capillary pressure and relative permeability curves as an aid in rock typing of carbonate reservoirs." Journal of Petroleum Science and Engineering 184, 2020: 106593. https://doi.org/10.1016/j.petrol.2019.106593.
Hu, Xuetao, and Su Huang. "Physical properties of reservoir rocks." Physics of petroleum reservoirs. Springer, Berlin, Heidelberg, 2017, pp 7-164. https://doi.org/10.1007/978-3-662-53284-3_2.
Liu, Siyan, et al. "Application of neural networks in multiphase flow through porous media: Predicting capillary pressure and relative permeability curves." Journal of Petroleum Science and Engineering 180, 2019, pp 445-455. https://doi.org/10.1016/j.petrol.2019.05.041.
R. F. John “Principles of applied reservoir simulation”. Elsevier, 1-12, 2001. https://doi.org/10.1016/B978-075067933-6/50003-9.
Bear, Jacob. Modeling phenomena of flow and transport in porous media. Vol. 1. Cham: Springer International Publishing, 2018. https://doi.org/10.1007/978-3-319-72826-1.
Pini, Ronny, and Sally M. Benson. "Simultaneous determination of capillary pressure and relative permeability curves from core‐flooding experiments with various fluid pairs." Water Resources Research 49.6, 2013, pp 3516-3530. https://doi.org/10.1002/wrcr.20274.
Moura, M., et al. "Impact of sample geometry on the measurement of pressure‐saturation curves: Experiments and simulations." Water Resources Research 51.11, 2015, pp 8900-8926. https://doi.org/10.1002/2015WR017196.
Amyx, James, Dantel Bass, and Robert L. Whiting. Petroleum reservoir engineering physical properties. 1960.
Li, Yong, et al. "A fast method of waterflooding performance forecast for large-scale thick carbonate reservoirs." Journal of Petroleum Science and Engineering 192, 2020: 107227. https://doi.org/10.1016/j.petrol.2020.107227.
Muntadher, AL-Nafie. "Estimation of reservoir properties based on core plugs, lithofacies, and well logs for Nahr Umr Formation in Noor oilfield, southern Iraq." Iraqi Journal of Science (2022). https://doi.org/10.24996/ijs.2022.63.5.22.
Schäfer, Gerhard, et al. "On the prediction of three-phase relative permeabilities using two-phase constitutive relationships." Advances in Water Resources 145, 2020: 103731. https://doi.org/10.1016/j.advwatres.2020.103731.
Foroudi, Sina, Alireza Gharavi, and Mobeen Fatemi. "Assessment of two-phase relative permeability hysteresis models for oil/water, gas/water and gas/oil systems in mixed-wet porous media." Fuel 309, 2022: 122150. https://doi.org/10.1016/j.fuel.2021.122150.
Blunt, Martin J. "Flow in porous media—pore-network models and multiphase flow." Current opinion in colloid & interface science 6.3 (2001): 197-207. https://doi.org/10.1016/S1359-0294(01)00084-X.
Leverett, Ml C. "Flow of oil-water mixtures through unconsolidated sands." Transactions of the AIME 132.01, 1939, pp 149-171. https://doi.org/10.2118/939149-G.
Hassler, G. L., and E. Brunner. "Measurement of capillary pressures in small core samples." Transactions of the AIME 160.01, 1945, pp 114-123. https://doi.org/10.2118/945114-G.
Borazjani, S., et al. "Determining water-oil relative permeability and capillary pressure from steady-state coreflood tests." Journal of Petroleum Science and Engineering 205, 2021: 108810. https://doi.org/10.1016/j.petrol.2021.108810.
Abeysinghe, Kumuduni Prasangika, Ingebret Fjelde, and Arild Lohne. "Dependency of remaining oil saturation on wettability and capillary number." SPE Saudi Arabia Section Technical Symposium and Exhibition. OnePetro, 2012. https://doi.org/10.2118/160883-MS.
Hirasaki, G. J., J. A. Rohan, and J. W. Dudley. "Interpretation of oil-water relative permeabilities from centrifuge experiments." SPE Advanced Technology Series 3.01, 1995, pp 66-75. https://doi.org/10.2118/24879-PA.
Ren, Jie, Yuan Wang, and Di Feng. "Competitive Effects of Permeability and Gravity on the Drying-Out Process during CO2 Geological Sequestration in Saline Aquifers." Lithosphere 2021.Special 4, 2022: 3198305. https://doi.org/10.2113/2022/3198305.
Baker, L. E. "Three-phase relative permeability correlations." SPE Enhanced Oil Recovery Symposium. OnePetro, 1988. https://doi.org/10.2118/17369-MS.
Bear, Jacob, and Carol Braester. "On the flow of two immscible fluids in fractured porous media." Developments in Soil Science. Vol. 2. Elsevier, 1972, pp 177-202. https://doi.org/10.1016/S0166-2481(08)70538-5.
Zhai, Zhiwei, et al. "Experimental studies on influence of temperature on relative permeability curves in sandstone reservoirs." Energy Exploration & Exploitation 40.1, 2022, pp 206-223. https://doi.org/10.1177%2F01445987211040876.
Finlayson, L., et al. "Applications of New Wireline Technology in a Mature Middle-East Oil Field." First EAGE Workshop on Iraq-Hydrocarbon Exploration and Field Development. European Association of Geoscientists & Engineers, 2012. https://doi.org/10.3997/2214-4609.20143568.
Mahdi, Thamer A., et al. "Sedimentological characterization of the mid-Cretaceous Mishrif reservoir in southern Mesopotamian Basin, Iraq." GeoArabia 18.1, 2013, pp 139-174. https://doi.org/10.2113/geoarabia1801139.
Al-Dujaili A.N., Shabani M., and AL-Jawad M.S. “Identification of the best correlations of permeability anisotropy for Mishrif reservoir in West Qurna/1 Oil Field, Southern Iraq”, Egyptian Journal of Petroleum, 2021a, pp 27-33. https://doi.org/10.1016/j.ejpe.2021.06.001.
Aqrawi, A. A. M., et al. “Characterization of the Mid-Cretaceous Mishrif reservoir of the southern Mesopotamian Basin, Iraq”. American Association of Petroleum Geologists Conference and Exhibition. Seven, 2010.
Thamer A. Mahdi, Adnan A.M. Aqrawi, Andrew D. Horbury, Govand H. Sherwani “Sedimentological characterization of the mid-Cretaceous Mishrif reservoir in southern Mesopotamian Basin, Iraq”. GeoArabia. 18 (1), 2013, pp 139–174. https://doi.org/10.2113/geoarabia1801139.
Al-Dujaili, A.N., Shabani, M. & AL-Jawad, M. S. “Characterization of flow units, rock and pore types for Mishrif Reservoir in West Qurna oilfield, Southern Iraq by using lithofacies data”. J Petrol Explor Prod Technol, 2021, pp 4005–4018. https://doi.org/10.1007/s13202-021-01298-9.
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