Adaptive approach for heavy oil reservoir description and simulation

Stanislav Ursegov, Armen Zakharian, Evgenii Taraskin

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    3 Citations (Scopus)

    Abstract

    The main goal of the reservoir modeling including heavy oil ones by means of any deterministic model is to predict their further development results. A similar problem is solved by decline curves. We propose a new system that combines both approaches. The developed model was called adaptive. The main advantage of the adaptive approach is the possibility to modify the mathematical apparatus of the model, depending on the uncertainty of geological and production data. The volume of initial information to construct the adaptive model is comparable to the volume of initial information to construct any deterministic model. The structure of the adaptive model also suggests the presence of deterministic geological and hydrodynamic components. However, they are based on different principles than the deterministic models. The mathematical apparatus of adaptive modeling is based on the use of such approaches as a non-parametric statistics, fuzzy logic, numerical solution of differential equations, and intelligent algorithms. On the basis of the developed approach, the adaptive geological and hydrodynamic models of the Permian - Carboniferous reservoir of the Usinsk field, which is the largest one according to its value of remaining recoverable reserves of heavy oil in the Timan-Pechora region of Russia were created. The main objective of reservoir simulation using the adaptive model is to determine which cells of the model obtained the produced oil and water, and where they remained less, and where the injected water or steam went. For the adaptive hydrodynamic models, the absolute values of reservoir parameters are not important; their diversity between neighboring cells is more significant. A new approach to the construction of geological and hydrodynamic models of heavy oil reservoirs based on the principle of fully discrete simulation which can be used to solve the most of the known problems associated with the reservoir development and increase of oil recovery on such complex objects including the forecast of efficiency of work-over techniques measures (drilling of new wells, cycle steam stimulation, water shut-off works, etc.).

    Original languageEnglish
    Title of host publicationSociety of Petroleum Engineers - SPE Reservoir Characterisation and Simulation Conference and Exhibition, RCSC 2017
    PublisherSociety of Petroleum Engineers
    Pages1238-1250
    Number of pages13
    ISBN (Electronic)9781510841970
    Publication statusPublished - 2017
    EventSPE Reservoir Characterisation and Simulation Conference and Exhibition, RCSC 2017 - Abu Dhabi, United Arab Emirates
    Duration: 8 May 201710 May 2017

    Publication series

    NameSociety of Petroleum Engineers - SPE Reservoir Characterisation and Simulation Conference and Exhibition, RCSC 2017

    Conference

    ConferenceSPE Reservoir Characterisation and Simulation Conference and Exhibition, RCSC 2017
    Country/TerritoryUnited Arab Emirates
    CityAbu Dhabi
    Period8/05/1710/05/17

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