A review of reservoir oil-water transition zone characterization and potential recovery methods

Document Type : Research Paper

Authors

1 Department of Petroleum Engineering, Indian Institute of Technology (Indian School of Mines), Sardar Patel Nagar, Dhanbad, JH- 826004, India

2 University of Wyoming, Laramie, Wyoming 82071, USA

3 Department of Applied Geophysics, Indian Institute of Technology (Indian School of Mines), Sardar Patel Nagar, Dhanbad, JH- 826004, India

4 University of Petroleum and Energy Studies, Bidholi, Uttarakhand 248007, India

5 President & CEO at Omak Technologies LLC, Plano, TX, USA

Abstract

The transition zone (TZ) in an oil reservoir has traditionally been a volume of lesser interest compared to oil-saturated zone. Researchers have suggested that it can contain commercial hydrocarbon volumes. Therefore, this paper seeks to summarize the characterization methods of TZs for the assessment of oil production opportunities. Another goal is to summarize the potential methods of oil production from TZs. It is conceivable that TZs will produce both water and oil together. However, some surprising instances of dry oil (i.e., 100% oil, with no associated connate water) production, due to the formation of water clusters, have also been observed earlier. Also, oil can possibly be found below the current FWL. Characterizing TZs is more complicated compared to oil-saturated zone. TZs can show variable wettability and permeability characteristics due to several complex phenomena related to buoyancy, capillarity, diagenesis, cementation, and reservoir tilting. Careful TZ core characterization followed by reservoir simulation and oil production can increase the overall reserves. Methods for TZ characterization include petrophysical logs, geophysical analysis, and reservoir modeling. Analysis of core obtained from TZs using the centrifuge method can reveal the residual oil saturation and relative permeabilities, which can aid the prediction of future oil production. More complicated analyses include structure and stratigraphic geological models and basin modeling for hydrocarbon migration history. Possible oil production methods from TZs include CO2 injection, surfactant flooding, combined carbonated water and surfactant flooding, and smart well placement. We recommend including TZs that span several meters in depth as part of reserves calculation.

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Abiola, O., Obasuyi, F. O., 2020. Transition zones analysis using empirical capillary pressure model from well logs and 3D seismic data on ‘Stephs’ field, onshore, Niger Delta, Nigeria. Journal of Petroleum Exploration and Production Technology, 10(3): 1227–1242.
Akbar, M.N.A., & Permadi, P., 2016. Estimation of Fluid-Fluid Contact and the Transition Zone: A Case Study of Low Contrast Resistivity Zone. International Petroleum Technology Conference, Bangkok, Thailand.
Al Harbi, A., Hursan, G., Kwak, H., Gao, J., 2018. A New NMR-Based Height Saturation Model of a Low Permeability Carbonate Reservoir. Abu Dhabi International Petroleum Exhibition and Conference 2018.
Aleidan, A., Kwak, H., Muller, H., Zhou, X., 2017. Residual-Oil Zone: Paleo-Oil Characterization and Fundamental Analysis. SPE Reservoir Evaluation & Engineering, 20(02): 260–268.
Arifianto, I., Surjono, S.S., Erlangga, G., Abrar, B., Yogapurana, E., 2018. Application of flow zone indicator and Leverett J-function to characterise carbonate reservoir and calculate precise water saturation in the Kujung formation, North East Java Basin. Journal of Geophysics and Engineering, 15(4): 1753–1766.
Balch, R.S., Stubbs, B.S., Weiss, W.W., Wo, S., 1999. Using Artificial Intelligence to Corellate Multiple Seismic Attributes to Reservoir Properties. SPE Annual Technical Conference and Exhibition.
Berle, A. E., Thorsen, A. K., Gjengedal, J.A., Ahmadhadi, F., 2010. Determining The Oil-Water Contact While Drilling Above The Transition Zone In Long Horizontal Wells - Combining 4d Seismic And Advanced Resistivity Geosteering For Improved Wellbore Placement. SPWLA 51st Annual Logging Symposium.
Behrenbruch, P., Minh, T.H., Hoang, T.G., Bui, K.D., 2016. Modelling of Drainage Capillary Pressure: A Comparative Study of Various Analytical Capillary Pressure Formulations in Matching Laboratory Results. SPE Asia Pacific Oil and Gas Conference and Exhibition.
Buiting, J.J.M., 2011. Upscaling Saturation-Height Technology for Arab Carbonates for Improved Transition-Zone Characterization. SPE Res Eval & Eng, 14: 11–24.
Cambois, G., 2000. Can P-wave AVO be quantitative? The Leading Edge, 19(11): 1246–1251.
Causin, E., Bona, N., 1994. In-Situ Wettability Determination: Field Data Analysis. European Petroleum Conference, 1: 189–198.
Christiansen, R.L., Heymans, M.J., Fanchi, J. R. (2000). Estimating Oil Reserves in Oil-Water Transition Zones. SPE Asia Pacific Conference on Integrated Modelling for Asset Management, 77– 86.
Efnik, M.R.S., Hafez, H.H., Abdulla, F., Al Mansoori, M.M., Haajizadeh, M., Al Hamawi, M., Kenawy, M., Srikany, G. (2006). Producing Dry Oil From a Transition Zone: Should This Be Called a Wedge Zone? Abu Dhabi International Petroleum Exhibition and Conference. Geopersia 2023, 13(2): 323-336 335
Fahmy, W.A., Reilly, J.M., 2006. Applying DHI/AVO Best Practices to Successfully Identify Key Risks Associated With a Fizz-Water Direct Hydrocarbon Indicator In the Norwegian Sea. SEG Annual Meeting.
Feng, H., Bancroft, J.C., Russell, B. H., 2007. A Comparison of Hydrocarbon Indicators Derived From AVO Analysis. SEG Annual Meeting.
Filippi, B., Joodi, B., Sarmadivaleh, M., 2015. Developing a reliable height function from the J-Leverett parameters to populate water saturation: a case study. The APPEA Journal, 55(1): 291.
Ghosh, S., 2022. A review of basic well log interpretation techniques in highly deviated wells. Journal of Petroleum Exploration and Production Technology, 12(7): 1889–1906.
Ghosh, S., Zargar, Z., Bose, S., Thakur, G., 2022. Lessons learned from the integrated multifarious study of a poorly performing yet great quality oil reservoir: an example from Assam Basin, India. Petroleum Science and Technology, 40(17): 2101–2122.
Haddad, R., 2011. Capillary Pressure Estimation and Reservoir Simulation. MSc Thesis. Imperial College, London, UK.
Harrison, B., Jing, X.D., 2001. Saturation Height Methods and Their Impact on Volumetric
Hydrocarbon in Place Estimates. SPE Annual Technical Conference and Exhibition: 109–120.
Hoversten, G.M., Cassassuce, F., Gasperikova, E., Newman, G.A., Chen, J., Rubin, Y., Hou, Z., Vasco, D., 2006. Direct reservoir parameter estimation using joint inversion of marine seismic AVA and CSEM data. GEOPHYSICS, 71(3).
Iwaki, Y., Mikada, H., Goto, T., Takekawa, J., 2014. AVO waveform inversion for estimating the fluid contact with fluid transition zone. Dept. of Civil and Earth Res. Eng., Kyoto University.
Jackson, M.D., Valvatne, P.H., Blunt, M. J., 2005. Prediction of Wettability Variation Within an Oil/Water Transition Zone and Its Impact on Production. SPE Journal, 10(02): 185–195.
Kassa, A.M., Gasda, S.E., Kumar, K., Radu, F.A., 2021. Modeling of relative permeabilities including dynamic wettability transition zones. Journal of Petroleum Science and Engineering, 203: 108556.
Kenyon, W.E., 1997. Petrophysical Principles of Applications of NMR Logging. The Log Analyst, 38(02): 21-43.
Khan, M.Y., Mandal, A., 2022. The impact of permeability heterogeneity on water-alternating-gas displacement in highly stratified heterogeneous reservoirs. Journal of Petroleum Exploration and Production Technology, 12(3): 871–897.
Kirkham, A., Juma, M.B., McKean, T.A.M., Palmer, A.F., Smith, M. J., Thomas, A. H., Twombley, B.N., 1996. Fluid Saturation Predictions in a “Transition Zone” Carbonate Reservoir, Abu Dhabi. GeoArabia, 1(4): 551–566.
Koperna, G.J., Melzer, L.S., Kuuskraa, V. A., 2006. Recovery of Oil Resources from the Residual and Transitional Oil Zones of the Permian Basin. SPE Annual Technical Conference and Exhibition, 5: 3526–3543.
Lalanne, B., Rebelle, M., 2014. A Review of Alternative Methods to Classify Rock-Types from Capillary Pressure Measurements. International Petroleum Technology Conference, 5: 3499–3515.
Lanning, K., Cambois, G., 1998. Case study of Elkhorn Slough Field, Solano County, California: Risk reduction using state-of-the-art 3D tools. SEG Technical Program Expanded Abstracts: 636–639.
Larson, R.G., Scriven, L.E., Davis, H.T., 1981. Percolation theory of two phase flow in porous media. Chemical Engineering Science, 36(1): 57–73.
Lian, P.Q., Tan, X.Q., Ma, C.Y., Feng, R. Q., Gao, H.M., 2016. Saturation modeling in a carbonate reservoir using capillary pressure based saturation height function: a case study of the Svk reservoir
in the Y Field. Journal of Petroleum Exploration and Production Technology, 6(1): 73–84.
Liu, D., Ge, H., Liu, J., Shen, Y., Wang, Y., Liu, Q., Jin, C., Zhang, Y., 2016. Experimental investigation on aqueous phase migration in unconventional gas reservoir rock samples by nuclear magnetic resonance. Journal of Natural Gas Science and Engineering, 36: 837–851.
Lu, X., Kharaghani, A., Adloo, H., Tsotsas, E., 2020. The Brooks and Corey Capillary Pressure Model Revisited from Pore Network Simulations of Capillarity-Controlled Invasion Percolation Process. Processes, 8(10): 1318.
Luis, F., Al Hammadi, K., Tanakov, M., 2016. Case Study of CO2 Injection to Enhance Oil Recovery into the Transition Zone of a Tight Carbonate Reservoir. Abu Dhabi International Petroleum Exhibition and Conference.
Masalmeh, S. K., 2000. High Oil Recoveries from Transition Zones. Abu Dhabi International Petroleum 336 Ghosh et al.
Exhibition and Conference.
Mu, Y.G., Cao, S.Y., 2004. Seismic physical modeling and sandstone reservoir detection using absorption coefficients of seismic reflections. Journal of Petroleum Science and Engineering, 41(1– 3): 159–167.
Nanda, N.C., 2021. Direct Hydrocarbon Indicators (DHI). In Seismic Data Interpretation and Evaluation for Hydrocarbon Exploration and Production: 117–129.
Nasr, N.H., 2015. Integrating core and log data by using different saturation height functions (SHF).Bachelor of Engineering Thesis, Universiti Teknologi Petronas.
Nowrouzi, I., Mohammadi, A.H., Manshad, A.K., 2020a. Water-oil interfacial tension (IFT) reduction and wettability alteration in surfactant flooding process using extracted saponin from Anabasis Setifera plant. Journal of Petroleum Science and Engineering, 189: 106901.
Nowrouzi, I., Mohammadi, A.H., Manshad, A.K., 2021. Synergic effects of dissolved carbon dioxide and an anionic surfactant synthesized from Rapeseed oil on interfacial tension (IFT) reduction, wettability alteration, and oil swelling in the process of chemical water injection into carbonate oil reservoirs. Fuel, 290: 120011.
Nowrouzi, I., Mohammadi, A.H., Manshad, A.K., 2020b. Effects of methanol and acetone as mutual solvents on wettability alteration of carbonate reservoir rock and imbibition of carbonated seawater. Journal of Petroleum Science and Engineering, 195: 107609.
Ogbamikhumi, A., Igbinigie, N. S., 2020. Rock physics attribute analysis for hydrocarbon prospectivity in the Eva field onshore Niger Delta Basin. Journal of Petroleum Exploration and Production Technology, 10(8): 3127–3138.
Pan, R., Ma, X., Kang, Y., 1997. An approach to reserve estimation enhanced with 3-D seismic data. Nonrenewable Resources, 6(4): 251–255.
Pajchel, B.S., Hansen, M.D., Galta, S., Thorsen, A.K., Gerhard, K., 2011. Petrophysical Interpretation Using Magnetic Resonance In North Sea Horizontal Wells. SPWLA 52nd Annual Logging Symposium, Colorado Springs, Colorado.
Parker, A. R., Rudd, J. M., 2000. Understanding and Modeling Water Free Production In Transition Zones: A Case Study. PE Asia Pacific Conference on Integrated Modelling for Asset Management.
Skauge, A., Surguchev, L., 2000. Gas Injection in Paleo Oil Zones. SPE Annual Technical Conference and Exhibition, SIGMA: 281–290.
Sun, J., Cai, J., Feng, P., Sun, F., Li, J., Lu, J., Yan, W., 2021. Study on Nuclear Magnetic Resonance Logging T2 Spectrum Shape Correction of Sandstone Reservoirs in Oil-Based Mud Wells. Molecules, 26(19): 6082.
Varela, O. J., Torres-Verdin, C., Sen, M. K., 2003. Joint Stochastic Inversion of Pre-stack Seismic Data And Well Logs For High-resolution Reservoir Delineation And Improved Production Forecast. SEG Annual Meeting.
Wiltgen, N.A., Calvez, J.L., Owen, K., 2003. Methods Of Saturation Modeling Using Capillary Pressure Averaging And Pseudos. SPWLA 44th Annual Logging Symposium.
Xian, C., Dawoud, A.M., Carnegie, A. J. G., El Mahdi, A., Al-Hajeri, S.K., Basioni, M., Raghuraman, B., Fujisawa, G., Mullins, O. C., 2006. Identification and Characterization of Transition Zones in Tight Carbonates by Downhole Fluid Analysis. All Days Abu Dhabi International Petroleum Exhibition and Conference, Abu Dhabi, UAE.
Zhang, W., Huang, Z., Guo, X., Pan, Y., Liu, B., 2020. A study on pore systems of Silurian highly mature marine shale in Southern Sichuan Basin, China. Journal of Natural Gas Science and Engineering, 76: 103094.