Temperature tolerant and salt resistant anionic polyacrylamide(PHPA POLYMER)

1. Product characteristics

It is designed for the use of wastewater of oilfield’s tertiary recovery .to make recycling use of

the wastewater recovered and benefit the environment.it is a polyer used to solve the problem

of tertiary recovery in high salt and temperature oilfield blocks,it is developed to maintain

ternary system’s high viscosity value in tertiary combination flooding.

2.specifications

Specification

SH-KY-1

SH-KY-2

Solid content(%)

≥89

Molecular weight(million)

≥25

≥30

Hydrolysis degree(%)

22-27

Dissolution time(h)

≤2

Viscossity(mpa.s)

Concentration(1000mg/l)

Mineralization(5727mg/l)

Test temperature(70℃)

≥11.5

≥12.5

Viscossity(mpa.s)

Concentration(1000mg/l)

Mineralization(2500mg/l)

Test temperature(45℃)

≥40

≥45

Shear viscosity retention rate(%)

≥80

≥80

Static adsorption viscosity retention

rate(%)

≥80

≥80

3. Application

Used as oilfield displacement agent for high temperarture and hypersalinity formation.most oil

reservoirs in china are in high temperature and hypersalinity formation.formation temperature

is usually above 70℃and formation mineralization degree is generally above

4000ppm.temperature tolerant and salt resistant polyacrylamide we developed can stand

temperature at above 85℃and salt 20000ppm,it is fully in compliance with requirements for

oil recovery in high temperature and hypersalinity formation.