What is polyacrylamide polymer gel treatment?

They include polymer flooding, alkaline-surfactant flooding, foam flooding, gel treatments, and so on. Among these methods, polyacrylamide polymer gel treatment is a common and cost-effective method because the process can reduce water cut by sealing the thief zone and redistributing the water drive.

What are the different types of polyacrylamide polymer gels?

Based on their compositions and application conditions, polyacrylamide polymer gels can be classified into three types: in-situ monomer-based gel, in-situ polymer-based gels, and preformed particle gels. Initially, in-situ mono- mer gels which are mainly composed of acrylamide were developed for water shutoff.

How to determine acrylamide based polymer concentration?

Many methods have been reported on the determination of acrylamide-based polymer concentrations [ ], including nitrogen-measurement method, nitrgon-bromination method, turbidimetry method, gel permeation chromatography method, viscosity measurement,

Can polyacrylamide gels be used in harsh environments?

Organically cross-linked PAM-related system To apply gel systems in harsh environments such as those with high temperatures, high salinity, and high pH, Chang et al. synthesized a polyacrylamide gels based on the cross-linking reaction between phenolic compounds (e.g., phenol and resorcinol) and formaldehyde.

What are in-situ polymer gels?

Initially, in-situ monomer gels which are mainly composed of acrylamide were developed for water shutoff. Conventional in-situ polymer gels include metal-cross linked polyacrylamide gels and organic-cross linked polyacrylamide gels. Preformed gels include preformed particle gels, pH sensitive microgels, and micro- and nano-gels.

What is the re-view of polymer gel development process?

The primary purpose of the re- view is to review polymer gel development process and their applications, from which the investigators interested in gel treatments can develop better gels to meet the current needs of mature oilfields. 1. Current polymer gel techonology 1.1.