In-Depth Understanding of the Ultra-Low-Interfacial-Tension Foam Flood in Oil-wet Fractured Media through Simulation with an Integrative Mechanistic Foam Model
- Haishan Luo (TOTAL E&P R&T, USA) | Khalid Mateen (TOTAL E&P R&T, USA) | Kun Ma (TOTAL E&P R&T, USA) | Guangwei Ren (TOTAL E&P R&T, USA) | Valerie Neillo (TOTAL SA) | Christophe Blondeau (TOTAL SA) | Pengfei Dong (Rice University) | Maura Puerto (Rice University) | Sibani Biswal (Rice University) | George Hirasaki (Rice University)
- Document ID
- Society of Petroleum Engineers
- SPE Annual Technical Conference and Exhibition, 30 September - 2 October, Calgary, Alberta, Canada
- Publication Date
- Document Type
- Conference Paper
- 2019. Society of Petroleum Engineers
- history match, low interfacial tension foam, foam in fracture, mechanistic foam model, oil-wet media
- 11 in the last 30 days
- 258 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 9.50|
|SPE Non-Member Price:||USD 28.00|
Recovering oil from oil-wet matrix in fractured carbonate rocks is highly challenging. Recent experiments have indicated that ultra-low-interfacial-tension (ULIFT) foam flood could significantly boost the oil recovery from such rocks. However, there is limited information available about the foam and the microemulsion transport in the fractured system to extract the oil from low permeability matrix. Adaptation of this technology in the field would not be possible without a good understanding of the process.
The aim of this work is to model and history match the ULIFT foam flood in fractured carbonate cores for further gaining insight into the complex four-phase flow. The model was set up based on a group of experiments using cores split lengthwise to simulate axially confined fractures. Pre-generated foam was tested in this system due to the lack of in-situ generation of foam in the straight fracture at the core scale. Various foam coalescence mechanisms, with/without oil, were modeled, and a dynamic-texture population-balance foam model was developed for this purpose.
Our model incorporates the effects of oil and permeability as well as the coexistence of foam and microemulsion on the foam apparent viscosity. The model is able to reasonably well history match both the oil recoveries and the total pressure drops of the ULIFT foam floods in fractured carbonate cores. More impressively, the modeling results agree very well with the pressure gradient of each section of the core, indicating that the spatial variation and distribution of the foam texture are largely captured. The simulation results also show that the pre-generated foam greatly resists the fluid flow in the fracture close to the injector side and enhances the diversion of injected fluids into the matrix layers, leading to improved oil displacement. The resulting oil crossflow from the matrix to the fracture destabilizes the foam at the foam front thereby slowing the transportation of foam in the fracture. Additional case studies suggest that significantly more oil can be recovered if the foam destabilization by oil could be reduced/mitigated.
Test results disclosed in this paper demonstrate for the first time the successful modeling and history-match of ULIFT foam floods in fractured rocks. Valuable insight into this complex process has been gained through this innovative research. This is of great value with respect to the further optimization of the corefloods, the design of the surfactant formulation, and the feasibility of applying this new technology to the field scale.
|File Size||2 MB||Number of Pages||22|
Chevallier, E., Tchamba, O., Chabert, M., Bekri, S., Martin, F., and Gautier, S. (2015). Foams with Ultra-Low Interfacial Tensions for an Efficient EOR Process in Fractured Reservoirs. Paper SPE-174658-MS presented in the SPE Asia Pacific Enhanced Oil Recovery Conference, 11-13 August, Kuala Lumpur, Malaysia.
Chevallier, E., Bouquet, S., Gland, N., Douarche, F., and Batôt, G. (2019). Advanced EOR Foam in Naturally Fractured Carbonates Reservoirs: Optimal Balance Between Foam and Interfacial Tension Properties. Paper SPE-194992-MS presented in the SPE Middle East Oil and Gas Show and Conference, 18-21 March, Manama, Bahrain.
Das, A., Nguyen, N., Farajzadeh, R., Southwick, J. G., Vicent-Bonnieu, S., Khaburi, S., Al Kindi, A., and Nguyen, Q. P. (2018). Laboratory Study of Injection Strategy for Low-Tension-Gas Flooding in High Salinity, Tight Carbonate Reservoirs. Paper SPE-190348-MS presented in the SPE EOR Conference at Oil and Gas West Asia, 26-28 March, Muscat, Oman.
Dong, P., Puerto, M., Ma, K., Mateen, K., Ren, G., Bourdarot, G., and Hirasaki, G. (2017). Low-Interfacial-Tension Foaming System for Enhanced Oil Recovery in Highly Heterogeneous/Fractured Carbonate Reservoirs. Paper SPE-184569 presented in the SPE International Conference on Oilfield Chemistry, 3-5 April, Montgomery, Texas, USA.
Dong, P., Puerto, M., Ma, K., Mateen, K., Ren, G., Bourdarot, G., Morel, D., Biswal, S. L., and Hirasaki, G. (2018). Ultralow-Interfacial-Tension Foam Injection Strategy Inverstigation in High Temperature Ultra-High Salinity Fractured Carbonate Reservoirs. Paper SPE-190259 presented in the SPE Improved Oil Recovery Conference, 14-18 April, Tulsa, OK, USA.
Luo, H., Ma, K., Mateen, K., Ren, G., Neillo, V., Blondeau, C., Bourdarot, G., and Morel, D. (2019a). A Mechanistic Foam Simulator Incorporating Systematic Dependencies of Various Foam Properties on Permeability. Paper SPE-193868 presented in the SPE Reservoir Simulation Conference, April 10-11, Galveston, Texas, USA, 2019.
Ma, K., Mateen, K., Ren, G., Bourdarot, G., and Morel, D. (2016). Modeling Foam Flow at Achievable Reservoir Flow Rates Using the Population-Balance Approach and Implications for Experimental Design. SPE-182902 presented in Abu Dhabi International Petroleum Exhibition & Conference, 7-10 November, Abu Dhabi, UAE.
Ma, K., Mateen, K., Ren, G., Luo, H., Bourdarot, G., and Morel, D. (2018). Mechanistic Modeling of Foam Flow Through Porous Media in The Presence of Oil: Review of Foam-oil Interactions and An Improved Bubble Population-balance Model. Paper SPE-191516, presented in the SPE Annual Technical Conference and Exhibition, Sep. 24-26, Dallas, TX.
Manrique, E. J., Muci, V. E., and Gurfinkel, M. E. (2007). EOR Field Experiences in Carbonate Reservoirs in the United States. SPE Reservoir Evaluation & Engineering, 10(06): 667-686. doi:10.2118/100063-PA.
Nguyen, N., Ren, G., Mateen, K., Cordelier, P. R., Morel, D. C., and Nguyen, Q. P. (2015). Low-Tension Gas (LTG) Injection Strategy in High Salinity and High Temperature Sandstone Reservoirs. Paper SPE-174690 presented in the SPE Asia Pacific Enhanced Oil Recovery Conference, 11-13 August, Kuala Lumpur, Malaysia.
Puerto, M. C., Lopez-Salinas, J. L., Jian, G., Hirasaki, G. J., and Miller, C. A. (2018). Laboratory Studies of Ternary Surfactant Formulation for EOR in Oil-Wet, High-Temperature Carbonate Formations. Paper SPE-190290 presented in the SPE Improved Oil Recovery Conference, 14-18 April, Tulsa, Oklahoma, USA.