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Optimization of a Large Polymer Flood With Full-Field Streamline Simulation

Authors
Biswajit Choudhuri (Petroleum Development Oman) | Chandan Thakuria (Petroleum Development Oman) | Abdul Aziz Belushi (Petroleum Development Oman) | Zamzam Nurzaman (Petroleum development Oman) | Khalid Al Hashmi (Petroleum Development Oman) | Roderick Batycky (StreamSim Technologies, Inc.)
DOI
https://doi.org/10.2118/169746-PA
Document ID
SPE-169746-PA
Publisher
Society of Petroleum Engineers
Source
SPE Reservoir Evaluation & Engineering
Volume
18
Issue
03
Publication Date
August 2015
Document Type
Journal Paper
Pages
318 - 328
Language
English
ISSN
1094-6470
Copyright
2015.Society of Petroleum Engineers
Disciplines
Keywords
full field, streamline simulation, reservoir management, polymer flooding, optimization
Downloads
5 in the last 30 days
419 since 2007
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Summary

A field-scale polymer flood has been in operation since early 2010 in a major oil field of the Sultanate of Oman. The project is composed of 27 mature waterflood patterns that were converted to polymer flood in 2010. Because a polymer-flood project has highchemical operating expenditure, optimization of a polymer flood requires continuous tracking of the mass of polymer injected per unit volume of incremental oil produced (relative to waterflood) for each polymer-flood pattern. To meet these objectives, a fullfield streamline simulation model was built, was history matched, and is being used for optimizing the polymer flood. Full-field simulation allows the proper modeling of each pattern and their interactions with offset patterns. However, full-field simulations can be expensive, so we use a streamline-based simulator to run forecast scenarios in a reasonable computation time on reasonable hardware. Streamlines have the added benefit of determining the time-varying well-rate allocation factors per pattern, meaning that pattern-level diagnostics are relatively easy to compute and are based on the dynamic flow characteristics of the model. Computational efficiency and quantification of patterns have facilitated use of the model for routine well and reservoir-management decisions. We show that one can determine the effectiveness of the polymer flood on a pattern-by-pattern basis over the historical polymer-injection period with a standard oil-produced vs. polymer-injected ranking. In forecasting, we show how to quantify the incremental recovery caused by polymer, above base waterflood, on a pattern-by-pattern basis to facilitate optimization of polymer-flood patterns and more specifically to determine when to stop polymer injection and which new patterns to move polymer injection to.

File Size  1 MBNumber of Pages   11

References

Batycky, R. P., Ceto, A. C., and Fenwick, D. H. 2007. Assisted History Matching of a 1.4 Million Cell Simulation Model for Judy Creek “A” Pool Waterflood/HCMF Using a Streamline-based Workflow. Proc., SPE Annual Technical Conference and Exhibition, Anaheim, California, USA, 11–14 November. SPE-108701-MS. http://dx.doi.org/10.2118/108701-MS.

Batycky, R. P. and Thiele, M. R. 2000. System and Methods for Visual Interpretation of Well Rate Allocation Factors. US Patent No. 6,519,531.

Batycky, R. P., Thiele, M. R., Baker, R. O. et al. 2008. Revisiting Reservoir Flood-Surveillance Methods Using Streamlines. SPE Res Eval & Eng 11 (2): 387–394. SPE-95402-PA. http://dx.doi.org/10.2118/95402-PA.

Choudhuri, B. and Al Rawahi, M. 2008. Success Story of a Waterflood Project in a Geologically Complex, High-Viscosity Oil Reservoir in a Major Brown Field in South Oman. SPE Res Eval & Eng 11 (3): 620–632. SPE-105245-PA. http://dx.doi.org/10.2118/105245-PA.

Choudhuri, B., Cherukupalli, P., Ravula, C. et al. 2009. Benefits of Tailored Surveillance Efforts in Heavy Oil Waterfloods: Case Study From a Major Brown Field in South Oman. Presented at the International Petroleum Technology Conference, Doha, Qatar, 7–9 December. IPTC 13481.

Choudhuri, B., Kalbani, A., Cherukupalli, P. K. et al. 2013. Enhancing Value of Polymer Flood Project With Proactive Well and Reservoir Management. Presented at the SPE EOR Conference, Kuala Lumpur, Malaysia, 2–4 July. SPE-165274-MS. http://dx.doi.org/10.2118/165274-MS.

Clemens, T., Abdev, J., and Thiele, M. R. 2011. Improved Polymer-Flood Management Using Streamlines. SPE Res Eval & Eng 14 (2): 171–181. SPE-132774-PA. http://dx.doi.org/10.2118/132774-PA.

de Melo, M. A., da Silva, I. P. G., de Godoy, G. M. R. et al. 2002. Polymer Injection Projects in Brazil: Dimensioning Field Application and Evaluation. Presented at the SPE/DOE Thirteenth Symposium on IOR, Tulsa, Oklahoma, USA, 13–17 April. SPE-75194-MS. http://dx.doi.org/10.2118/75194-MS.

Feng, X., Wen, X. H., Li, B. et al. 2009. Water Injection Optimization for a Complex Fluvial Heavy-Oil Reservoir by Integrating Geological, Seismic, and Production Data. SPE Res Eval & Eng 12 (6): 865–878. SPE-110492-PA. http://dx.doi.org/10.2118/110492-PA.

Koning, E. J. L. and Menzter, E. 1988. Evaluation of a Pilot Polymer Flood in the Marmul Field, Oman. Presented at the SPE Annual Technical Conference and Exhibition, Houston, Texas, USA, 2–5 October. SPE-18092-MS. http://dx.doi.org/10.2118/18092-MS.

Lolomari, T., Bratvedt, K., Crane, N. et al. 2000. The Use of Streamline Simulation in Reservoir Management: Methodology and Case Studies. Proc., SPE Annual Technical Conference and Exhibition, Dallas, Texas, USA, 1–4 October. SPE-63157-MS. http://dx.doi.org/10.2118/63157-MS.

Needham, Riley B. and Doe, Peter H. 1987. Polymer Flooding Review. J Pet Technol 39 (12): 1503–1507. SPE-17140-PA. http://dx.doi.org/10.2118/17140-PA.

Saadi, F., Amri, B., Nofli, S. et al. 2012. Polymer Flooding in a Large Field in South Oman—Initial Results and Future Plans. Presented at the SPE EOR Conference, Muscat, Oman, 16–18 April. SPE-154665-MS. http://dx.doi.org/10.2118/154665-MS.

Teeuw, D., Rond, D., and Martin, J. H. 1983. Design of a Pilot Polymer Flood in the Marmul Field. Presented at the SPE Middle East Oil Technical Conference, Manama, Bahrain, 14–17 March. SPE-11504-MS. http://dx.doi.org/10.2118/11504-MS.

Thakuria, C., Amri, M., Saqri, K. et al. 2013. Performance Review of Polymer Flooding in a Major Brown Oil Field of Sultanate of Oman. Presented at the SPE EOR Conference, Kuala Lumpur, Malaysia, 2–4 July. SPE-165262-MS. http://dx.doi.org/10.2118/165262-MS.

Thiele, M. R., Batycky, R. P., Pollizer, S. et al. 2010a. Polymer-Flood Modelling Using Streamlines. SPE Res Eval & Eng 13 (2): 313–322. SPE-115545-PA. http://dx.doi.org/10.2118/115545-PA.

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