Fully compositional and thermal reservoir simulations efficiently compare EOR techniques

Angelo Lucia, Denis Voskov, Scott C. James, Rustem Zaydullin, Heath Henley

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

2 Citations (Scopus)

Abstract

Primary oil recovery methods in Saskatchewan's heavy oil basin extract 5 to 10% of the available resource with the vast majority left in the ground and recoverable only through Enhanced Oil Recovery (EOR) methods. Traditional EOR generates steam in surface facilities and injects it underground to mobilize the oil for production with considerable energy losses inherent in the process. R.I.I. North America's Solvent Thermal Resource Innovation Process (STRIP) technology moves the steam generator underground, reducing the operating and capital costs of a surface thermal production facility by 30% and 50% respectively, and saving more than 30% of the energy typically required for thermal production. STRIP technology combusts methane to produce in situ CO 2 and steam. Because CO2 acts as a co-solvent, STRIP outperforms traditional steam-injection technology. This is demonstrated using a breakthrough modeling technique that couples fully compositional and thermal reservoir flow simulation capabilities. This new approach couples FlashPoint's equation-of-state solver for the multiphase, multi-component, isothermal, isobaric flash problem, GFLASH, with Stanford's Automatic Differentiation General Purpose Research Simulator for thermal reservoir flow simulations. This new computational framework exploits advanced techniques for skipping phase-identification computations and only uses exact phase equilibria from GFLASH when needed, reducing computational times by one to two orders of magnitude compared to the full rigorous solution.

Original languageEnglish
Title of host publicationSociety of Petroleum Engineers - SPE Canadian Unconventional Resources Conference 2013 - Unconventional Becoming Conventional: Lessons Learned and New Innovations
PublisherSociety of Petroleum Engineers
Pages769-785
Number of pages17
Volume2
Publication statusPublished - 2013
Externally publishedYes
EventSPE Canadian Unconventional Resources Conference 2013 - Unconventional Becoming Conventional: Lessons Learned and New Innovations, CURC 2013 - Calgary, AB, Canada
Duration: 5 Nov 20137 Nov 2013

Conference

ConferenceSPE Canadian Unconventional Resources Conference 2013 - Unconventional Becoming Conventional: Lessons Learned and New Innovations, CURC 2013
CountryCanada
CityCalgary, AB
Period5/11/137/11/13

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  • Cite this

    Lucia, A., Voskov, D., James, S. C., Zaydullin, R., & Henley, H. (2013). Fully compositional and thermal reservoir simulations efficiently compare EOR techniques. In Society of Petroleum Engineers - SPE Canadian Unconventional Resources Conference 2013 - Unconventional Becoming Conventional: Lessons Learned and New Innovations (Vol. 2, pp. 769-785). Society of Petroleum Engineers.