What is partially hydrolyzed polyacrylamide (PHPA)?

Partially hydrolyzed polyacrylamide (PHPA) is a widely used polymer in the oil and gas industry due to its lesser cost and good water solubility. PHPA is used as a functional additive in water-based drilling fluids. The PHPA mud system stabilizes shale formations and influences cuttings and wellbore stability.

What does partially hydrolyzed polyacrylamide mean?

What Does Partially Hydrolyzed Polyacrylamide Mean? Partially hydrolyzed polyacrylamide (PHPA) is a widely used polymer in the oil and gas industry due to its lesser cost and good water solubility. PHPA is used as a functional additive in water-based drilling fluids.

Is PHPA a water soluble polymer?

PHPA is a co-polymer of anionic character and high molecular weight. It is a water-soluble polymer, which is primarily used as a highly efficient fluid loss reducer, Viscosifier and protective colloid for shale’s and cutting in fresh water, calcium, sodium brines and KCL mud systems.

Which polymer is used to produce partially hydrolyzed polyacrylamide (HPAM)?

PAM is used to produce partially hydrolyzed polyacrylamide (HPAM), which is linear, anionic, water-soluble, stable, polymeric, and high molecular weight chain of acrylamide (C 3 H 5 NO) monomers (Bao et al., 2010; Braun et al., 2022; Liu et al., 2016; Xiong et al., 2018).

How is partially hydrolyzed polyacrylamide treated?

Dong L, Su F, Wang YZ. Treatment of partially hydrolyzed polyacrylamide by mixed bacteria isolated from wastewater. Environmental Progress & Sustainable Energy. 2020;39 (6):e13445. doi: 10.1002/ep.13445. [DOI] [Google Scholar]

Is polyacrylamide soluble in water?

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). It is extremely soluble in water, but not soluble in organic solvents, such as methanol and hydrocarbons (Lu & Wu, 2002; Braun et al., 2022).