{"id":983,"date":"2024-10-30T12:51:23","date_gmt":"2024-10-30T11:51:23","guid":{"rendered":"https:\/\/micropro.de\/verfahren\/meor-produktion\/"},"modified":"2025-09-23T10:59:16","modified_gmt":"2025-09-23T08:59:16","slug":"meor-produktion","status":"publish","type":"page","link":"https:\/\/micropro.de\/en\/verfahren\/meor-produktion\/","title":{"rendered":"MEOR \u2014 Microbial Enhanced Oil Recovery"},"content":{"rendered":"\n

The MEOR process developed and tested by MicroPro GmbH over a period of 20 years is a highly effective tertiary oil production process on a micro\u00adbio\u00adlo\u00adgical basis. This technology by reduction of water-cut leads to a revita\u00adlization of oil production in depleting reser\u00advoirs. It enables an enhanced production of oil through the injection of molasses and trillions of selected and adapted bacteria. The injected micro\u00ador\u00adga\u00adnisms grow on molasses, proli\u00adferate and synthesize various products (gases, acids, alcohols, surfac\u00adtants) deep inside the reservoir.<\/p>\n\n\n\n

For case-specific treat\u00adments at high tempe\u00adrature and salinity MicroPro GmbH provides a compre\u00adhensive culture collection of MEOR-bacteria.<\/p>\n\n\n\n

<\/div>\n\n\n\n
\n

The MEOR process includes a number oft production enhancing effects:<\/h2>\n\n\n\n
    \n
  • Bacterial gases increase reservoir pressure up to 20 bar and lead to a higher energy potential deep in the oil field<\/li>\n\n\n\n
  • Organic acids build up new flow channels for oil by dissolving carbonate rock<\/li>\n\n\n\n
  • Biolipids increase wettability and break up oil\/water barriers<\/li>\n<\/ul>\n\n\n\n

    Due to the above processes fresh sections of the matrix which are not quite drained will be pulled into the oil extra\u00adction and increased pressure and permea\u00adbility and therefore push signi\u00adficant amounts of trapped normally unreco\u00adverable oil toward the production well. Per ton of molasses injected into the reservoir ~ 50 bbl MEOR-oil can be produced. Hence, on top of a water-flooding treatment an additional production of 10 \u2013 15% of the Original Oil in Place (OOIP) has been recorded.<\/p>\n<\/div><\/div>\n\n\n\n

    \n

    MEOR results are:<\/h2>\n\n\n\n
      \n
    • Reduction of water-cut by 15 \u2013 30 %<\/li>\n\n\n\n
    • Incre\u00adasing production rate of stimu\u00adlated producers by up to 50 %<\/li>\n\n\n\n
    • Enhanced oil production by up to 150 %<\/li>\n<\/ul>\n\n\n\n

       The costs for treatment amount, according to case-specific complexity, to a few USD per bbl additional oil.<\/p>\n<\/div><\/div>\n\n\n\n

      <\/div>\n\n\n\n

      Technology<\/h3>
      \n

      MEOR \u2013 Technology<\/strong><\/h3>\n\n\n\n

      For MEOR treatment of oil reser\u00advoirs previously selected bacteria are bred in fermenters on site and injected into the under\u00adground formation together with a molasses media. MEOR can be applied as a cyclic (\u201chuff and puff\u201d) or as a conti\u00adnuous flooding process. Together with injection water selected micro\u00ador\u00adga\u00adnisms are injected deep into the reservoir, where they multiply and ferment the intro\u00adduced nutrients (molasses).<\/p>\n\n\n\n

      Deep inside the reservoir trillions of micro\u00ador\u00adga\u00adnisms generate a number of production incre\u00adasing substances, which lead to reduction of water cut and a signi\u00adfi\u00adcantly increased crude oil production rate.<\/p>\n\n\n\n

      Bacterial products and their impact on oil production:<\/p>\n\n\n\n

      <\/div>\n\n\n\n

      Bacterial gases<\/strong><\/strong><\/h4>\n\n\n\n
      Microbial products<\/strong><\/strong><\/td>effects<\/strong><\/strong><\/td>Oil field parameters<\/strong><\/strong><\/td><\/tr>
      CO2 (80 %), H2 (20 %) up to 380 mL per gram oft molasses<\/td>Increase of pressure up to 20 bar in model experience<\/td>Increase of energy potential in the oil field<\/td><\/tr>
      CH4 as final product from organic acids, alcohol\u2019s and hydrogen<\/td>Increase of oil volume factor and therefore decrease of oil viscosity<\/td>Increase of oil mobilization<\/td><\/tr>
      <\/td>Change of pressure potential in fissures and pores<\/td>Increase of oil production rate<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
      <\/div>\n\n\n\n

      Organic acids<\/strong><\/strong><\/h4>\n\n\n\n
      Microbial products<\/strong><\/strong><\/td>effects<\/strong><\/strong><\/td>Oil field parameters<\/strong><\/strong><\/strong><\/td><\/tr>
      Essig\u2011, Propion\u2011, Butter- und Valerian-S\u00e4ure<\/td>Decrease of pH down to 4.8 <\/td>Increase of rock permeability<\/td><\/tr>
      <\/td>Dissolving of carbo\u00adnatic rock by ~0.2 ton per ton molasses<\/td>Extension of oil production to fresh not yet drained rock<\/td><\/tr>
      <\/td><\/td>Build up of new flow channels<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
      <\/div>\n\n\n\n

      Alcohols, biolipids<\/strong><\/strong><\/h4>\n\n\n\n
      Microbial products<\/strong><\/strong><\/strong><\/td>effects<\/strong><\/strong><\/strong><\/td>Oil field parameters<\/strong><\/strong><\/strong><\/td><\/tr>
      Methanol, ethanol, propanol, butanol<\/td>Decrease of inter-factional tension (for example against heptane down to 12 \u2014 46,5 mNm-1<\/sup>)<\/td>Force imbibition of injected, fermented molasses media into pore canals and fissures to give more oil from the rock<\/td><\/tr>
      biolipids <\/td>Alteration of rock wettability<\/td>Break up of oil\/water barriers and creating emulsions, Improve of flow rate<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
      <\/div>\n\n\n\n

      Effects of the MEOR-technology have been proven in numerous studies and applications:<\/strong><\/strong><\/h3>\n\n\n\n
        \n
      • Increase of energy potential inside the reservoir<\/li>\n\n\n\n
      • Impro\u00advement of pressure potential in fissures and pores<\/li>\n\n\n\n
      • Decrease of oil viscosity<\/li>\n\n\n\n
      • Reduction of oil\/water surface tension<\/li>\n\n\n\n
      • Impro\u00advement of capillary adsorption of liquids<\/li>\n\n\n\n
      • Increase of permea\u00adbility by rock dissolution<\/li>\n<\/ul>\n\n\n\n

        In numerous tests and field appli\u00adcation the oil production could be enhanced by more than 100 %.<\/p>\n\n\n\n

        Minimizing the risks<\/strong><\/strong><\/strong><\/h3>\n\n\n\n

        For a successful appli\u00adcation of the MEOR technology we strongly recommend field-specific preli\u00adminary inves\u00adti\u00adga\u00adtions. This involves the evaluation of reservoir parameters and analysis of formation waters. More detailed prepa\u00adra\u00adtions are carried only in case the reservoir is in principle suited for MEOR treatment.<\/p>\n\n\n\n

        A simulation of the MEOR process in model experi\u00adments on basis of original samples enables a reliable prognosis of antici\u00adpated oil extra\u00adction rate and enhanced oil production. This reduces the economic risk level signi\u00adfi\u00adcantly before a field application.<\/p>\n\n\n\n

        A pilot test on a repre\u00adsen\u00adtative section of the reservoir with injection and production wells can provide us with concrete infor\u00admation about profi\u00adta\u00adbility of the MEOR process within a short period of time.<\/p>\n<\/div><\/div>\n\n\n\n

        MEOR \u2013 Step by step<\/strong><\/h3>
        \n

        Review of existing reservoir data<\/strong><\/strong><\/strong><\/h3>\n\n\n\n

        Evaluation of geologic and geophysical data<\/strong><\/strong><\/strong><\/h3>\n\n\n\n
          \n
        • Evaluation of geologic and geophy\u00adsical data 
            \n
          • Reservoir rock type, structure, thickness, porosity, permeability<\/li>\n\n\n\n
          • Oil\/water saturation<\/li>\n\n\n\n
          • Mineral facies\/ chemical composition<\/li>\n<\/ul>\n<\/li>\n\n\n\n
          • Fluid and gas characteristics 
              \n
            • Chemical compo\u00adsition of oil, gas, water<\/li>\n\n\n\n
            • Oil viscosity, density under reservoir conditions<\/li>\n\n\n\n
            • Gas- oil; gas-water ratio, water cut<\/li>\n<\/ul>\n<\/li>\n\n\n\n
            • Deposit evaluation\n
                \n
              • OOIP \u2014 prognosis of deposit and single wells of interest, decline rate<\/li>\n<\/ul>\n<\/li>\n\n\n\n
              • Oil field configuration 
                  \n
                • Number and positions of production and injection wells<\/li>\n\n\n\n
                • Injection rates<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n

                  Chemical and microbiological investigations<\/strong><\/strong><\/strong><\/strong><\/h3>\n\n\n\n
                    \n
                  • Existing bacterial population in oil field system:<\/li>\n\n\n\n
                  • Chemical compo\u00adsition of reservoir water<\/li>\n\n\n\n
                  • Speci\u00adfi\u00adcation of adapt\u00adation program of MEOR bacteria to specific field conditions<\/li>\n<\/ul>\n\n\n\n

                    Customization of MEOR to specific field conditions<\/strong><\/strong><\/h3>\n\n\n\n
                      \n
                    • Charac\u00adte\u00adrization and selection of MEOR microbes<\/li>\n\n\n\n
                    • Adaption of selected microbes to field conditions<\/li>\n\n\n\n
                    • Optimization of nutrient media<\/li>\n\n\n\n
                    • Analysis of bio-products with original sample material<\/li>\n\n\n\n
                    • Process engineering \u2014 scale up<\/li>\n<\/ul>\n\n\n\n

                      Economic and technical evaluation of MEOR under simulated field conditions<\/strong><\/strong><\/h3>\n\n\n\n
                        \n
                      • Core flooding tests under reservoir condi\u00adtions to simulate the MEOR drainage<\/li>\n<\/ul>\n\n\n\n

                        MILESTONE:  Decision about application of MEOR process<\/strong><\/strong><\/h3>\n\n\n\n

                        Design and construction of MEOR station<\/strong><\/strong><\/strong><\/h3>\n\n\n\n

                        MEOR treatment with continues process control<\/strong><\/strong><\/h3>\n<\/div><\/div>\n\n\n\n

                        Case studies<\/h3>
                        \n

                        MEOR \u2013 Case studies<\/strong><\/h3>\n\n\n\n

                        Basically the MEOR process is appli\u00adcable at all reservoir types, if the physical and chemical condi\u00adtions for bacterial growth are met.<\/p>\n\n\n\n

                        The MEOR process is parti\u00adcu\u00adlarly suitable for carbonate deposits, repre\u00adsenting ~ 50 % of oil reser\u00advoirs worldwide. Here some EOR-technologies, usually applied in sands (e.g. polymer\u2011, surfactant- and alkaline-flooding) show low efficiency because of chemical reactions. The parti\u00adcular advan\u00adtages of the MEOR technology with molasses in carbonate forma\u00adtions are:<\/p>\n\n\n\n

                          \n
                        • Injected bacteria spread wider and more quickly through fissures, fractures and pure canals<\/li>\n\n\n\n
                        • Reactions of generated bio-products take place deep inside the reservoir<\/li>\n\n\n\n
                        • Plugging of oil bearing strata by filtration, adsorption and on-growth of bacteria is minimized<\/li>\n\n\n\n
                        • Carbo\u00adnates neutralize generated organic acids, which inten\u00adsifies the formation of microbial products<\/li>\n\n\n\n
                        • New, not yet drained sections of reservoir rock are included in recovery as a result of microbial rock solution<\/li>\n<\/ul>\n\n\n\n

                          The following case studies illus\u00adtrate the diverse and positive effects of MEOR treatment.<\/p>\n<\/div><\/div>\n\n\n\n

                          MEOR \u2014 Publications<\/strong><\/h3>
                          \n
                            \n
                          • Wagner, M., et.al. (1995) Develo\u00adpment and Appli\u00adcation of a New Biotech\u00adnology of Molasses in-situ Method \u2014 Detailed Evaluation for Selected Wells in Romaschkino Carbonate Reservoir<\/strong>
                            5th MEOR Confe\u00adrence, Dallas, Texas 9<\/li>\n\n\n\n
                          • Wagner, M. et.al.: Verfahren und Anlage zur Herstellung von Impfgut f\u00fcr eine verbes\u00adserte Erd\u00f6l\u00adf\u00f6r\u00adderung<\/strong>
                            P 4307334, 24.04.1995<\/li>\n\n\n\n
                          • Wagner, M. (1994) Microbial Improved Oil Recovery<\/strong>
                            Oil and Gas Technology, 3<\/li>\n\n\n\n
                          • Muslimov, R. et.al. Wagner, M. (1993) Microbial Improved Oil Recovery in Carbonate Reser\u00advoirs \u2014 Prepa\u00adration of a Pilot Project in the Oil Field Romaschkino, Republic of Tartarstan<\/strong>
                            7th European IOR Symposium, Moskau<\/li>\n\n\n\n
                          • Wagner, M. et.al. (1993) Micro\u00adbially Improved Oil Recovery from Carbonate Reser\u00advoirs<\/strong>
                            Procee\u00addings Inter\u00adna\u00adtional Biohy\u00addro\u00adme\u00adtallurgy Symposium, Jackson Hole, Wyoming, USA<\/li>\n\n\n\n
                          • Wagner, M. et.al.: Verfahren zur Unter\u00addr\u00fc\u00adckung sulfat\u00adre\u00addu\u00adzie\u00adrender Bakterien bei MIOR<\/strong>
                            DE 41 27 744 A1, 25.02.1993<\/li>\n\n\n\n
                          • Wagner, M. (1991) Microbial Enhancement of Oil Recovery from Carbonate Reser\u00advoirs with Complex Formation Charac\u00adte\u00adristics<\/strong>
                            Procee\u00addings of the 1990 int. Conf. On Microbial Enhancement of Oil Recovery, Develo\u00adp\u00adments in Petroleum Science 31 Elsevier<\/li>\n\n\n\n
                          • Wagner, M. et.al.: Stimulierungs- und Inten\u00adsi\u00advie\u00adrungs\u00adver\u00adfahren zur Gewinnung von Kohlen\u00adwas\u00adser\u00adstoffen<\/strong>
                            DL PS 277 297, 28.03.1990<\/li>\n\n\n\n
                          • Wagner, M. et.al.: Verfahren zur mikro\u00adbiellen Sekun\u00add\u00e4r\u00adge\u00adwinnung von Erd\u00f6len<\/strong>
                            DL PS 2007 515, 08.06.1983<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n
                            <\/div>\n","protected":false},"excerpt":{"rendered":"

                            The MEOR process developed and tested by MicroPro GmbH over a period of 20 years is a highly effective tertiary oil production process on a micro\u00adbio\u00adlo\u00adgical basis. This technology by reduction of water-cut leads to a revita\u00adlization of oil production in depleting reser\u00advoirs. It enables an enhanced production of oil through the injection of molasses and [\u2026]<\/p>\n","protected":false},"author":1,"featured_media":315,"parent":949,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-full-width-image.php","meta":{"wp_typography_post_enhancements_disabled":false,"_hupa_show_title":true,"_hupa_custom_title":"","_hupa_title_css":"","_hupa_select_menu":1,"_hupa_select_sidebar":1,"_hupa_show_social_media":false,"_hupa_select_social_type":0,"_hupa_select_social_color":0,"_hupa_social_media_css":"","_hupa_select_handy_menu":1,"_hupa_select_top_area":1,"_hupa_show_bottom_footer":true,"_hupa_show_top_footer":false,"_hupa_show_widgets_footer":false,"_hupa_sticky_widgets_footer":1,"_hupa_select_header":0,"_hupa_select_container":0,"_hupa_top_area_container":0,"_hupa_main_container":0,"_hupa_select_footer":0,"_hupa_show_menu":true,"_hupa_show_custom_url":false,"_hupa_beitragsbild_url":"","footnotes":""},"class_list":["post-983","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nMEOR - Microbial Enhanced Oil Recovery - MicroPro GmbH Microbiological Laboratories Gommern<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/micropro.de\/en\/verfahren\/meor-produktion\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MEOR - Microbial Enhanced Oil Recovery - MicroPro GmbH Microbiological Laboratories Gommern\" \/>\n<meta property=\"og:description\" content=\"The MEOR process developed and tested by MicroPro GmbH over a period of 20 years is a highly effective tertiary oil production process on a micro\u00adbio\u00adlo\u00adgical basis. 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This technology by reduction of water-cut leads to a revita\u00adlization of oil production in depleting reser\u00advoirs. It enables an enhanced production of oil through the injection of molasses and […]","og_url":"https:\/\/micropro.de\/en\/verfahren\/meor-produktion\/","og_site_name":"MicroPro GmbH Microbiological Laboratories Gommern","article_modified_time":"2025-09-23T08:59:16+00:00","og_image":[{"width":2560,"height":1707,"url":"https:\/\/micropro.de\/wp-content\/uploads\/2024\/01\/Labor-002-scaled.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/micropro.de\/en\/verfahren\/meor-produktion\/","url":"https:\/\/micropro.de\/en\/verfahren\/meor-produktion\/","name":"MEOR - Microbial Enhanced Oil Recovery - MicroPro GmbH Microbiological Laboratories Gommern","isPartOf":{"@id":"https:\/\/micropro.de\/#website"},"primaryImageOfPage":{"@id":"https:\/\/micropro.de\/en\/verfahren\/meor-produktion\/#primaryimage"},"image":{"@id":"https:\/\/micropro.de\/en\/verfahren\/meor-produktion\/#primaryimage"},"thumbnailUrl":"https:\/\/micropro.de\/wp-content\/uploads\/2024\/01\/Labor-002-scaled.jpg","datePublished":"2024-10-30T11:51:23+00:00","dateModified":"2025-09-23T08:59:16+00:00","breadcrumb":{"@id":"https:\/\/micropro.de\/en\/verfahren\/meor-produktion\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/micropro.de\/en\/verfahren\/meor-produktion\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/micropro.de\/en\/verfahren\/meor-produktion\/#primaryimage","url":"https:\/\/micropro.de\/wp-content\/uploads\/2024\/01\/Labor-002-scaled.jpg","contentUrl":"https:\/\/micropro.de\/wp-content\/uploads\/2024\/01\/Labor-002-scaled.jpg","width":2560,"height":1707,"caption":"Originalbild unter: http:\/\/onkel-hans.fotograf.de\/photo\/62ca8af2-dbdd-4a9a-9a42-21f25e3240b9"},{"@type":"BreadcrumbList","@id":"https:\/\/micropro.de\/en\/verfahren\/meor-produktion\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Startseite","item":"https:\/\/micropro.de\/en\/"},{"@type":"ListItem","position":2,"name":"Processes","item":"https:\/\/micropro.de\/en\/verfahren\/"},{"@type":"ListItem","position":3,"name":"MEOR – Microbial Enhanced Oil Recovery"}]},{"@type":"WebSite","@id":"https:\/\/micropro.de\/#website","url":"https:\/\/micropro.de\/","name":"MicroPro GmbH Microbiological Laboratories Gommern","description":"Forschung und Entwicklungsarbeiten in den Bereichen Erd\u00f6l, Erdgas, Biogas und Wasserstoff","publisher":{"@id":"https:\/\/micropro.de\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/micropro.de\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/micropro.de\/#organization","name":"MicroPro GmbH Microbiological Laboratories Gommern","url":"https:\/\/micropro.de\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/micropro.de\/#\/schema\/logo\/image\/","url":"https:\/\/micropro.de\/wp-content\/uploads\/2023\/12\/Micropro-Logo.svg","contentUrl":"https:\/\/micropro.de\/wp-content\/uploads\/2023\/12\/Micropro-Logo.svg","width":1,"height":1,"caption":"MicroPro GmbH Microbiological Laboratories Gommern"},"image":{"@id":"https:\/\/micropro.de\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/de.linkedin.com\/company\/micropro-gmbh"]}]}},"_links":{"self":[{"href":"https:\/\/micropro.de\/en\/wp-json\/wp\/v2\/pages\/983","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/micropro.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/micropro.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/micropro.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/micropro.de\/en\/wp-json\/wp\/v2\/comments?post=983"}],"version-history":[{"count":2,"href":"https:\/\/micropro.de\/en\/wp-json\/wp\/v2\/pages\/983\/revisions"}],"predecessor-version":[{"id":986,"href":"https:\/\/micropro.de\/en\/wp-json\/wp\/v2\/pages\/983\/revisions\/986"}],"up":[{"embeddable":true,"href":"https:\/\/micropro.de\/en\/wp-json\/wp\/v2\/pages\/949"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/micropro.de\/en\/wp-json\/wp\/v2\/media\/315"}],"wp:attachment":[{"href":"https:\/\/micropro.de\/en\/wp-json\/wp\/v2\/media?parent=983"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}