Recovery Method and Parameter Optimization of a Pilot Test for Conformance Control Flooding and Thermal Recovery in the Offshore Heavy Oilfield

Table 1

The experiment results of recovery ratio.

Parameter	Scheme contents	Working viscosity of polymer gel (mPa·s)	Oil saturation (%)	Recovery (%)
				Total	Increment
1	1^st scheme	—	78.5	8.8	—
2	2^nd scheme	—	78.1	11.6	2.8
3	3^rd scheme	23.3	78.5	13.9	5.1
4	4^th scheme	22.8	78.1	17.9	9.1

Note: taking the recovery of scheme 1 as the comparing standard, the increment of other schemes recovery can be calculated.