Does friction reducer (polyacrylamide) influence calcite dissolution (pore generation)?

This study is more about rate comparison between with or without PAM, and thus provides key information on friction reducer (polyacrylamide) influenced calcite dissolution (pore generation) and benefits the design of hydraulic fracturing fluids.

Are polymers used in hydraulic fracturing?

The utilization and treatment of polymers were of interest to both academia and industry. In contemporary extraction operations, hydraulic fracturing (HF) stands as a key technology. Within this domain, polymers, ranging from natural polymers such as guar gum to synthetic counterparts such as PAM, assume critical significance 9.

Does polyacrylamide cause membrane fouling during flowback water treatment?

Xiong, B. et al. Polyacrylamide in hydraulic fracturing fluid causes severe membrane fouling during flowback water treatment. J. Membr. Sci. 560, 125–131 (2018). Barati, R. & Liang, J.-T. A review of fracturing fluid systems used for hydraulic fracturing of oil and gas wells. J. Appl. Polym. Sci. 131, np –n/a (2014).

Can degradable polymers and urea reduce calcite surface fracturing?

Hence, degradable polymers and urea may potentially reduce the residue polymer onto calcite surface and promote the dissolution of calcite and gas recovery during fracturing activities. 5. Conclusions

Can polyacrylamide contribute to residual polymer formation?

Common methods for treating PAM are membrane filtration 25, thermal distillation 24, oxidation treatment 26, and biological treatments 27. However, addressing the challenge posed by PAM remains a pressing issue within the industry. Fig. 1: Polyacrylamide and its fragments may contribute to residual polymer formation.

Can cationic polyacrylamide flocculants be used to treat oily water?

Shu, G., Bu, K., Zhao, B. & Zheng, S. Evaluation of newly developed reverse demulsifiers and cationic polyacrylamide flocculants for efficient treatment of oily produced water. Colloids Surf. A 610, 125646 (2021). This work was supported by grants from the “Qihang Program” of the Southwest Petroleum University (2023QHZ001) awarded to C.Z.