Pressure Modification or Barrier Issues during Polymer Flooding Enhanced Oil Recovery

Table 1

General property of simulation area for the four oil fields.

Reservoir property	Oil field
	Daqing	Milne point	Tambaredjo	Pelican Lake
Well geometry	Vertical	Horizontal	Vertical	Horizontal
Well spacing (ft)	820	1179	443	574
Oil viscosity (cp)	10	300	600	1650
Injection layers	4	8	5	2
Ave permeability (md)	512	1032	4066	3030
Ave. thickness (ft)	8.00	1.70	24.06	4.4
Max. permeability contrast	5.76	1.86	22.32	1.22
Ave. porosity	0.21	0.35	0.19	0.30
Polymer viscosity (cP)	45	45	45~85	22
	0.265	0.220	0.120	0.224
at	0.210	0.18	0.15	0.216
Bubble point pressure (psi)	1395	1382	290	305
Reservoir pressure (psi)	1591	1600	485	420