Study on a Novel Water-Soluble Hydrophobically Associating Polymer as an Enhanced Heavy Oil Recovery Agent

Table 1

Data of HPDS and HPAM shear resistance test.

Shear conditions	Polymer types	Polymer concentration (mg/L) and viscosity (mPa·s)
		500	1000	1500	2000
Before shearing	HPDS	58.9	205.1	395.3	575.2
	HPAM	108.7	257.3	391.5	511.3
After shearing	HPDS	40.5	103.6	298.8	445.2
	HPAM	89.4	150.8	211	266.9