Research of Flow Field of Alkaline/Surfactant/Polymer Solution in the Annular Depressurization Slot by PIV Experiment

Table 1

Experimental schemes of the PIV test.

	Polymer molecular weight	Polymer concentration (mg/L)	Flow rate (m^3/d)	Number of slots
Scheme 1	1.6 × 10^6	2000	30	18
	1.9 × 10^6
	2.5 × 10^6
Scheme 2	1.6 × 10^6	2000	20	18
			30
			50
Scheme 3	1.6 × 10^6	2000	30	5
				10
				18