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Experimental investigation of the asphaltene deposition process during different production schemes

Bagheri, M. B ; Sharif University of Technology | 2011

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  1. Type of Document: Article
  2. DOI: 10.2516/ogst/2010029
  3. Publisher: 2011
  4. Abstract:
  5. Experimental Investigation of the Asphaltene Deposition Process during Different Production Schemes - This paper presents the results of asphaltene precipitation and deposition during lean gas injection, CO2 injection and natural depletion in reservoir conditions. In addition, the effect of variations in operating pressure, injection gas concentration and production rate on asphaltene precipitation and deposition were investigated. The severity of asphaltene deposition was found to be more pronounced in lean gas injection in comparison with CO2 injection and natural depletion. Increasing the flow rate in natural depletion xperiments showed a considerable increase in asphaltene deposition, and consequently permeability reduction in the core matrix Moreover, more asphaltene deposition was observed along the porous media in the gas injection experiments when the gas mol percent of the mixture was increased
  6. Keywords:
  7. Asphaltene deposition ; Asphaltene precipitation ; Experimental investigations ; Gas concentration ; Gas injection ; matrix ; Natural depletion ; Operating pressure ; Permeability reduction ; Production rates ; Reservoir conditions ; Carbon dioxide ; Deposition ; Gases ; Investments ; Porous materials ; Pressure effects ; Water injection ; Asphaltenes ; Asphaltene ; Experimental study ; Permeability ; Porous medium ; Precipitation (chemistry)
  8. Source: Oil and Gas Science and Technology ; Volume 66, Issue 3 , 2011 , Pages 507-519 ; 12944475 (ISSN)
  9. URL: http://ogst.ifpenergiesnouvelles.fr/articles/ogst/abs/2011/03/ogst09131/ogst09131.html