High temperature tolerant and salt resistant partially hydrolyzed polyacrylamide

Aqueous Hybrids of Silica Nanoparticles and Hydrophobically ...

2.1.2. Temperature and Salt Resistance Mechanism of Viscosity-Enhancing Copolymers. Conventional polymer molecules show differentdegrees of degradation and curling under high temperatures and high-salt conditions, resulting in a significantdecrease in the

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(PDF) Incorporation of Partially Hydrolyzed Polyacrylamide W ...

Silicon dioxide nanoparticles High temperature and high salinity Stability A B S T R A C T Silicon dioxide (SiO 2 ) nanoparticles (NPs) have been recently proposed to increase the performance of polyacrylamide (PAM) for enhanced oil recovery (EOR) applications.

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Study on temperature-resistance and salt-tolerance aluminum ...

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Study of a high salt tolerant amphiphilic polymer and its sa ...

Polyacrylamide and partially hydrolyzed polyacrylamide Polyacrylamide (PAM) is a synthetic polymer of long-chain acrylamide subunits, high molecular weight (1000 to 20 × 10 6 g/mol), and a wide range degree of hydrolysis (Abidin et al., 2012 ; Joshi & Abed, 2017 ).

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Study of salt tolerance and temperature resistance of a hydr ...

commonly used partially hydrolyzed polyacrylamide, and has great potential for application in tertiary oil recovery of oilfields with high salinity. The salt resistance mechanism of HA-PAM in ...

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Effect of salt-resistant monomers on viscosity of modified ...

DOI: 10.1002/APP.47793 Corpus ID: 145867663 Hydrolysis and thermal stability of partially hydrolyzed polyacrylamide in high‐salinity environments @article{Oliveira2019HydrolysisAT, title={Hydrolysis and thermal stability of partially hydrolyzed polyacrylamide in high‐salinity environments}, author={Priscila F. Oliveira and Josane Assis Costa and Luis Fernando S. Oliveira and Let{\'i}cia S ...

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What is partially hydrolyzed polyacrylamide (HPAM)?

Partially hydrolyzed polyacrylamide (HPAM) was widely implemented to improve the rheological properties of displacing fluids, but the high temperature and salinity of the reservoir brine limited their applications.

Can partially hydrolyzed polyacrylamide be used as a flooding agent?

As an industrially applied flooding agent, partially hydrolyzed polyacrylamide (HPAM) can no longer meet the requirements due to the degradation of its performance in unconventional reservoirs (such as high temperature or high salinity) .

Is HPAM a water soluble polymer?

Partially hydrolyzed polyacrylamide (HPAM) is a water-soluble polymer widely used in enhanced oil recovery (EOR). However, in high salinity reservoirs, the low salt resistance of HPAM results in low recovery rates during polymer flooding.

Which polymer has a low salinity resistance?

Where synthetic polymers, which are generally based on partially hydrolyzed polyacrylamide (HPAM), have presented low salinity resistance, mainly in the presence of divalent cations (Ca 2+ and Mg 2+ ), which in some systems can cause premature polymer precipitation [10, 11]. … …

What is the mechanism of salt resistance of twin-tailed amphiphilic polymer?

The mechanism of salt resistance of the novel twin-tailed amphiphilic polymer were proposed. Partially hydrolyzed polyacrylamide (HPAM) is the most widely used polymer for oil recovery. Its thickening ability has been severely compromised in high salinity reservoirs.

What is a high salt tolerant amphiphilic polymer (Panc)?

A high salt tolerant amphiphilic polymer (PANC) was synthesized by free radical polymerization method by using AM, NVP and long-chain hydrophobic monomer C 16 DMAAC. The salt resistance and rheological properties of PANC were studied in order to further understand the mechanism of salt-thickening of PANC molecules.