Optimization of EOR Displacement Methods Based on Multiple Factor Analysis

Table 1

Summary of screening parameters.

Serial number	Parameter name	Unit	Ranges	Parameter category
1	Reservoir type			Geological parameters
2	Rock characteristics			Geological parameters
3	Reservoir depth	m	0~10000	Geological parameters
4	Reservoir pressure	MPa		Geological parameters
5	Reservoir temperature	°C	0~200	Geological parameters
6	Average effective thickness of single layer	m	0~250	Geological parameters
7	Net to gross ratio	f	0~1	Geological parameters
8	Porosity	%	0~100	Geological parameters
9	Air permeability	10^-3 μm^2	0~30000	Geological parameters
10	Oil saturation	%	0~100	Geological parameters
11	Permeability variation coefficient	f	0~1	Geological parameters
12	Bottom water influence			Geological parameters
13	Side water impact			Geological parameters
14	Crack/cave			Geological parameters
15	Formation dip			Geological parameters
16	Gas source			Geological parameters
17	Upper and lower compartments and tube closure			Geological parameters
18	Single storage coefficient	10^4 t/(km^2·m)	0~150	Geological parameters
19	Formation crude oil viscosity	mPa·s	0~100000	Fluid parameters
20	Crude oil density	g/cm^3	0.5~1	Fluid parameters
21	Acid value of crude oil	mgKOH/g	0~40	Fluid parameters
22	Formation water salinity	mg/L	500~300000	Fluid parameters
23	Divalent ion content	mg/L	0~5000	Fluid parameters