polyacrylamide for oil drilling list cationic in Sliema
polyacrylamide for oil drilling list cationic in Sliema
polyacrylamide for oil drilling list cationic in Sliema
polyacrylamide for oil drilling list cationic in Sliema
polyacrylamide for oil drilling list cationic in Sliema
preparation and properties of cationic polyacrylamide

Preparation and properties of cationic polyacrylamide

Article 01 November 2019 Introduction Polyacrylamides (PAM) are an important class of water-soluble polymers with low synthetic cost, high viscosity, and good rheological properties.

Get Price
preparation and performances of a cationic modified polyacrylamide

Preparation and performances of a cationic modified polyacrylamide

After 16 h of aging at 120¡ãC, a brine drilling fluid containing 1% of the copolymer showed an apparent viscosity retention rate of 70%, likely due to the formation of a stable net structure between the copolymer's molecular chains and clay particles.

Get Price
preparation and properties of cationic polyacrylamide flocculant

Preparation and properties of cationic polyacrylamide flocculant

Nano-silica/cationic polyacrylamide (S-CPAM) prepared by inverse emulsion polymerization of modified silica (C-SiO2) as a hydrophobic component with acrylamide (AM), dimethyl diallyl ammonium...

Get Price
polyacrylamide degradation and its implications in environmental

Polyacrylamide degradation and its implications in environmental

1. as a viscosity enhancer in enhanced oil recovery (EOR) and more recently as a friction reducer in high volume hydraulic fracturing (HVHF) 1, 4, 9, 10, 11, 12, 13, 14, 15; 2. as a flocculant in...

Get Price
recent advances of modified polyacrylamide in drilling technology

Recent advances of modified polyacrylamide in drilling technology

Previous studies have shown the effectiveness of rheology modifier in drilling fluid. For instance, Balding et al. (2020) studied the water-based drilling fluid formulation with various formulations via free radical grafting and physical blending with chemical additives, such as polystyrene sulfonate (PSS), polyacrylamide (PAM), cellulose nanocrystal (CNC), and modified CNC with vinyl

Get Price
cationic polyacrylamide: synthesis and application in ... - researchgate

Cationic Polyacrylamide: Synthesis and Application in ... - ResearchGate

Abstract. Cationic polyacrylamide (CPAM) were used extensively in water treatment, enhanced oil recovery and sludge dewatering. The review summarized the synthesis methods research progress of

Get Price
preparation and solution properties of a novel cationic hydrophobically

Preparation and solution properties of a novel cationic hydrophobically

A novel cationic water-soluble monomer allyldimethylisooctylammonium bromide (ADIAB) containing a short-chain alkane was synthesized successfully. This monomer was copolymerized with acrylamide and sodium acrylate to produce hydrophobically modified polyacrylamide (HMPAM) using solution polymerization without surfactants.

Get Price
recent advances of modified polyacrylamide in drilling technology

Recent advances of modified polyacrylamide in drilling technology

Consequently, polymer modification is required in drilling nowadays. The modified polyacrylamide reviewed in this paper is a polymer aqueous solution with high molecular weight, which has a similar density as water but a much higher viscosity. Further, it is a water-soluble, easily mixed dry granular, and non-gelling agent.

Get Price
modification of waste polyacrylonitrile fiber and its

Modification of waste polyacrylonitrile fiber and its

1 Altmetric Explore all metrics Abstract Cationic polymer fluid loss additive (CPFL) was prepared by using the reaction of 2,3-epoxypropyltrimethyl ammonium chloride (EPTMAC) (as cationic reagent) with the amide group in the molecular structure of the sodium salt of partially hydrolyzed polyacrylonitrile fibers (HPAN-Na).

Get Price
theoretical studies of hydrolysis and stability of polyacrylamide

Theoretical studies of hydrolysis and stability of polyacrylamide

The degree of hydrolysis ¦Ó of HPAM (Fig. 1 (c)) is defined as: ¦Ó = Y X + Y; 0 ¡Ü ¦Ó ¡Ü 1. Where X and Y are numbers of amide and carboxylic groups in polymer. Because our studies mainly focus on the hydrolysis reaction of the amide group, we model the PAM with a dangling ¨CCONH 2 group attaching to the middle carbon of the C 5.

Get Price