Publisher: Chemical Society of Nigeria

Polymers For Enhanced Oil Recovery Technology

KEYWORDS: Polymer flooding, Polysaccharides, Polyacrylamides, Enhanced oil recover, Technology

ABSTRACT:

Approximately  half  of  oil  production  in  developing  countries  is  as  a  result  of  waterflood  and  a  major  concern  of  this process  is  mobility  control  of  the  injected  phase.  With  the  unfavorable  mobility  ratio,  channeling  through  permeable zones  and  the  fingering  effect  can  occur  that  leads  to  an  early  water  breakthrough  and  inefficient  flooding.  By adding  polymer  to  the  injection  water  and,  consequently,  increasing  the  water  viscosity,  the  displacement  becomes more  stable  and  a  greater  good  efficiency  can  be  achieved.  This  paper  provides  a  review  of  what  is  known  about these  claims  and  also  about  the  wider  benefits  of  the  adoption  of  this  process.  The  intention  of  this  review  is  not  just to  summarise  current  knowledge  of  the  subject,  but  also  to  identify  gaps  in  knowledge  that  require  further  research.


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