Journal of Petroleum & Environmental Biotechnology

Jinju Han

Publications

• Research Article
  Effect of Miscibility Condition for CO2 Flooding on Gravity Drainage in 2D Vertical System
  Author(s): Jinju Han, Joohyung Kim, Junwoo Seo, Hyemin Park, Hyeok Seomoon and Wonmo Sung* Jinju Han, Joohyung Kim, Junwoo Seo, Hyemin Park, Hyeok Seomoon and Wonmo Sung*
  
  In CO2 flooding process, gravity drainage and miscibility condition are the main factors on the efficiency of oil recovery. In this study, we observed oil recovery for different miscibility conditions in vertical oil reservoir. This was investigated in two dimensional vertical sandstone slab, where unstable gravity drainage phenomena can be formed. CO2 is injected at bottom into 100% saturated with oil and production port is open at top of the system. We have performed a series of experiments using continuous CO2 flooding for immiscible and near-miscible conditions. From the experimental results, oil recovery at near-miscible condition is 3.77 times greater than at immiscible condition, particularly in vertical system. It indicated that applying the immiscible CO2 flooding is ineffective because of gravity override of CO2 and generation of CO2 channel at upper side in vertical reservo.. View More»
  DOI: 10.4172/2157-7463.1000177

  Abstract PDF