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2 Berenblum R. A.

2 2012

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Vybor i ocenka effektivnosti metodov nefteotdaci

Berenblum R. A.

Prace Naukowe Instytutu Nafty i Gazu

2012

nr 182 wyd. konferencyjne

923--927

This paper reviews an approach to three stage selection of EOR strategies. First the screening model allows for a fast first-order screening of key EOR applicability methods at given reservoir conditions using a multi-criterion model and distribution functions based on applicability ranges for critical reservoir parameters. On a second stage a model for oil recovery factor estimation based on the statistical data from projects carried out worldwide is applied. Finally, analytical methods could be used for quantitative analysis and production profile calculations for a wide range of key oil recovery methods. Analytical methods are limited by simplified representation of the reservoir and EOR processes; however solutions are exact and not affected by the numerical dispersion. A wide range of reservoir parameters and computed results enable the user to perform rapid and comprehensive reservoir analyses as well as sensitivity studies. This tool can be compared with a "compass" helping reservoir and petroleum engineers to identify and successfully implement EOR/IOR methods at their fields.

Obzor opyta zakacki CO2 dla povysenia nefteotdaci ili zahoronenia laboratornye issledovania i modelirovanie

Berenblum R. A.

Prace Naukowe Instytutu Nafty i Gazu

2012

nr 182 wyd. konferencyjne

85--89

Over the course of recent years IRIS was actively involved in a large number of CO2 studies. The projects were carried out both for Norwegian Continental Shelf as well as main land Europe and Russia. Our involvement in such projects included geological and reservoir modeling, laboratory study, evaluation of actual injection strategy, project and pilot preparation. This presentation would give a short overview of various CO2 activities carried out, methods and strategies developed and lessons learned. Three key projects would be discussed: 1) laboratory and simulation study of foam application during CO2 injection; 2) CO2 EOR evaluation in sandstone and carbonate reservoirs; 3) geological and reservoir modeling for CCS project. Finally the lessons learned are to be presented. Ideas and approaches to pressure (stress) dependent reservoir behavior, injectivity, geochemical reactions and technological constraints are to be presented. Current research and develop- ment activities including open source software development, multi-scale and reservoir simulation approaches are going to be outlined. It should also be pointed out that these ideas could be applied to much larger scope of tasks than CO2 injection.