Shandong Chemsun Ost Co.,Ltd

Viscoelastic granular oil repellent agent
■Product Overview
After the viscoelastic particle oil displacement agent is injected into the formation pores, the gelatin particles are deformed under the action of water flooding pressure, which drives the remaining oil in the pores to move to the production well, which plays an oil displacement role. On the other hand, when the pressure difference in the deep part of the formation is small, the gelatin particles will be trapped in the pores of the formation, which plays a role in blocking the high permeability zone and large pores of the formation.

■Performance characteristics
It has the characteristics of partial cross-linking and partial branching structure, has a high elastic modulus and a high viscous modulus, and has good flexibility and toughness after water absorption.

■Technical indicators
Project indicators
PPG B-PPG
Type I. TYPE II. TYPE III. TYPE I. TYPE II. TYPE III
(75-150) (100-300) (300-900) (75-150) (100-300) (300-900)
μm μm μm μm μm μm
Appearance: White granular dry powder
Solid content, % ≥86.0
Particle content, % Type I: less than 75um≤10; Greater than 150um≤3
Type II: less than 100um≤10; Greater than 300um≤3
Type III: less than 300um≤10; Greater than 900um≤3
Settling time of dispersed system, h ≥5.0,
Network structure content, % / ≥50
The median particle size after swelling was μm ≥300 ≥500 ≥700 ≥ 300 ≥ 500 ≥700
The elastic modulus of the water dispersion system (5000mg/L), Pa ≥ 0.3 ≥0.5 ≥1 ≥1 ≥15 ≥20
Viscosity of water dispersion system (5000mg/L), mPa·s ≥50 ≥100 ≥ 150 ≥5 ≥ 10 ≥50
Organochlorine content, % 0

■Product use
After being injected into the formation pores, it plays the role of oil displacement, blocking the formation high permeability zone and large pores.