WAG Cycle Dependent Hysteresis Modelling through an Integrated Approach from Laboratory to Field Scale, Malaysia Oil Fields
- Authors
- Lazreg Belazreg (PETRONAS) | M Razib A Raub (PETRONAS) | M Azri B Hanifah (PETRONAS) | Nader Ghadami (PETRONAS)
- DOI
- https://doi.org/10.2118/186379-MS
- Document ID
- SPE-186379-MS
- Publisher
- Society of Petroleum Engineers
- Source
- SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, 17-19 October , Jakarta, Indonesia
- Publication Date
- 2017
- Document Type
- Conference Paper
- Language
- English
- ISBN
- 978-1-61399-538-9
- Copyright
- 2017. Society of Petroleum Engineers
- Disciplines
- 5.5.2 Core Analysis, 5.7 Reserves Evaluation, 5.7.2 Recovery Factors, 5 Reservoir Desciption & Dynamics, 4.3.4 Scale, 5.5.8 History Matching, 5.4 Improved and Enhanced Recovery, 5.3.4 Reduction of Residual Oil Saturation, 5.5 Reservoir Simulation, 5.4 Improved and Enhanced Recovery
- Keywords
- Hysteresis, WAG, Simulation
- Downloads
- 0 in the last 30 days
- 133 since 2007
- Show more detail
- View rights & permissions
| SPE Member Price: | USD 9.50 |
| SPE Non-Member Price: | USD 28.00 |
With the increasing demand in domestic energy requirement and with declining production rates from mature fields of offshore Malaysia, PETRONAS has embarked on an aggressive campaign to address the decline in rates as well as increase the reserves through proven Enhanced Oil Recovery (EOR) application. An immiscible Water Alternating Gas (WAG) process is found to be the most favorable EOR method due to gas supply availability, proven world-wide application, and promising results in improving injection fluid sweep efficiency and reducing residual oil saturation.
To reduce the uncertainty of EOR technical studies under low oil price, a comprehensive integrated procedure is required to study WAG performance and define key factors that impact flow efficiency under three-phase flow conditions for a more representative full-field reservoir simulation study results.
This procedure involves a detailed comprehensive parametric study of the cycle dependent hysteresis starting from extensive literature review, followed by laboratory experiments and extracting pertinent WAG parameters from coreflood history matching and finally applying these parameters in full-field reservoir simulation study. This study demonstrated that the WAG cycle dependency of relative permeability during WAG process is one of the key factors that has significant impact on WAG performance and recovery factor. This feature cannot be captured by conventional three-phase flow models used by reservoir simulators. The study indicates additional recovery factor of about 1%-2% compared to the base-case WAG model without WAG hysteresis.
| File Size | 4 MB | Number of Pages | 9 |
Sedaralit, M.F., Hashim, N., Mandal, D., 2016. Translating a Robust Techniques of the EOR-WAG Hysteresis from Laboratory to Field Application. Presented at the SPE International Petroleum Technology Conference, Bangkok, Thailand, 14-16 November. IPTC-18927-MS. https://doi.org/10.2523/IPTC-18927-MS.
Nadeson, G., Anua N.A., Singhal A., Ibrahim R., 2004. Water-Alternating-Gas (WAG) Pilot Implementation, A First EOR Development Project in Dulang Field, Offshore Peninsular Malaysia. Presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, Perth, Australia, 18-20 October. SPE-88499-MS. https://doi.org/10.2118/88499-MS.
Christensen J.R., Stenby E.H., Skauge A., 2001. Review of WAG Field Experience. SPEJ. 4 (02): 97–106. SPE-71203-PA. https://doi-org.proxy1.athensams.net/10.2118/71203-PA
Shahverdi, H., Sohrabi, M., 2014. Modeling of Cyclic Hysteresis of Three-Phase Relative Permeability During Water-Alternating-Gas Injection. SPE Journal. SPE-166526-PA. https://doi.org/10.2118/166526-PA.
Mahzari, P., Sohrabi, M., 2016. An Improved Approach for Estimation of Flow and Hysteresis Parameters Applicable to WAG Experiments. Presented at the SPE International Petroleum Exhibition & Conference, Abu Dhabi, UAE, 7-10 November. SPE-183321-MS. https://doi.org/10.2118/183321-MS.
Beygi, M.R., Delshad, M., Pudugramam V. S, Pope, G.A., Wheeler, M.F., 2015. Novel Three-Phase Compositional Relative Permeability and Three-Phase Hysteresis Models. SPE Journal. SPE-165324-PA. https://doi.org/10.2118/165324-PA
Spiteri, E.J., Juanes, R., 2004. Impact of Relative Permeability Hysteresis on the Numerical Simulation of WAG Injection. Presneted at the SPE Annual Technical Conference and Exhibition, Houston, 26-29 September. SPE-89921-MS. https://doi.org/10.2118/89921-MS
Kossack, C.A., 2000. Comparison of Reservoir Simulation Hysteresis Options. Presented the SPE Annual Technical Conference and Exhibition, Dallas, Texas, 1-4 October. SPE-63147-MS. https://doi.org/10.2118/63147-MS
Element, D.J., Masters, J.H.K., Sargent, N.C., Jayasekera, A.J., 2003. Assessment of Three-Phase Relative Permeability Models Using Laboratory Hysteresis Data. Presented the SPE International Improved Oil Recovery Conference in Asia Pacific, Kuala Lumpur, Malaysia, 20-21 October. SPE-84903-MS. https://doi.org/10.2118/84903-MS
Mobeen Fatemi S., Jamiolahmady M., Sohrabi M., Irekand S., 2012. Experimental and Theoretical Investigation of Oil/Gas Relative Permeabilities Hysteresis in the Presence of Immobile Water: under Low Oil/Gas IFT and Mixed-Wet Conditions. Presented at the SPE Europe/EAGE Annual Conference, Copenhagen, Denmark, 4-7 June. SPE-154530-MS. https://doi-org.proxy1.athensams.net/10.2118/154530-MS
Hoseini, J., Mirkalaei, S.M.M., Demiral, B., Masoudi, R., Ataei, A., 2012. Investigating the Effect of Hysteresis modelling on Numerical Simulation of Immiscible WAG Injection. Presented at the SPE International Petroleum Technology Conference, Bangkok, Thailand, 15-17 November. IPTC 15055. https://doi.org/10.2523/IPTC-15055-MS
