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Laboratory studies of MEOR in micromodel as a fractured system

Nourani, M ; Sharif University of Technology | 2007

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  1. Type of Document: Article
  2. Publisher: 2007
  3. Abstract:
  4. Microbial EOR (MEOR) is receiving renewed interest worldwide. The method is based on microorganisms' activities to reduce residual oil of reservoirs, which is dependent on behavior of inherent microorganisms or injection of bioproduct of external microorganisms. Five bacterial species were taken from MIS crude oil that is one of the aging Persian fractured reservoirs. Visualization experiments were carried out to examine the behavior of MEOR in micromodels designed to resemble the fractured system: static and dynamic. A new surface sample of the MIS oil was taken at the well head and physical specifications were measured at the lab. This was fairly light oil with API gravity of 42.5. The respective specifications were presented. The selected microorganisms initially formed spores. The microorganisms were all classified as bacillus. Forming different colonies were observed after separation process. All of the microorganisms were facultative anaerobic. Reservoir rock wettabilty alteration was observed from oil-wet to water-wet by the microorganisms
  5. Keywords:
  6. Microbial enhanced oil recovery (MEOR) ; Persian fractured reservoirs ; Atmospheric pressure ; Microorganisms ; Reservoir management ; Residual fuels ; Thermal effects ; Crude petroleum ; Upstream Oil & Gas ; Viscous force ; Fractured system ; Enhanced recovery
  7. Source: Society of Petroleum Engineers Eastern Regional Meeting 2007: Unbridling Energy's Future, Lexington, KY, 17 October 2007 through 18 October 2007 ; October , 2007 , Pages 39-46 ; 9781604239362 (ISBN)
  8. URL: https://onepetro.org/SPEERM/proceedings-abstract/07ERM/All-07ERM/SPE-110988-MS/143233