Page 362 - Standard Handbook Petroleum Natural Gas Engineering VOLUME2

Table 5-46
Summary of Screening Criteria for Enhanced Recovery Methods
011 propertles ReseWOlr characterlstlcs
Net Average
Gravity Viscosity Oil Formation thickness permeability Depth Temperature
OAPl CP Composltlon Saturatlon bPe ft md ft "F
Gas injection methods
> 2,000
(LPG) to
High % of Sandstone or Thin unless > 5,000
Hydrocarbon > 35 c 10 c2 - c7 > 30% PV carbonate dipping N.C. (H.P. Gas) N.C.
Nitrogen & flue gas > 24 High % of Sandstone or Thin unless N.C. > 4,500 N.C.
> 35 for N, c 10 CI - c7 > 30% PV carbonate dipping
High % of Sandstone or Thin unless
Carbon dloxlde >26 c 15 c2 - c12 > 30% PV carbonate dipping N.C. > 2,000 N.C.
Chemical Flooding
Light interme- Sandstone
Surfactanffpolymer > 25 c 30 diates desired > 30% PV preferred > 10 > 20 c 8,000 c 175
Sandstone pre
10% PV ferred; carbon- > 10
Polymer > 25 c 150 N.C. Mobile oil ate possible N.C. (normally) c 9,000 c 200
Above
Some organic waterflood Sandstone
Alkaline 13-35 < 200 acids residual preferred N.C. > 20 c 9,000 c 200
Thermal
c 40 Some Sand or sand
(1 0-25 asphaltic > 40-50% stone with > 150
Combustion normally) c 1,000 components PV high porosity > 10 > loo* > 500 preferred
Sand or sand
40-50% stone with
Steamflooding c 25 > 20 N.C. PV high porosity > 20 > 200"' 300-5,000 N.C.
From Reference 386. Transmissibility > 20 md Wcp
N.C. = Not Critical *" Transmissibllity > 100 md Wcp