Design of Wideband Metamaterial Absorber for X-Band Application

Kumar, Praveen; Sinha, Rashmi; Choubey, Arvind; Mahto, Santosh Kumar; Pal, Pravesh; Kumar, Ranjeet

doi:10.1007/978-981-19-4975-3_27

Cited by 1 publication

(1 citation statement)

References 21 publications

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“…Zhu D Y et al 10 developed a granular temporary plugging agent, which has excellent properties such as high strength and high‐temperature resistance, but the plugging removal process of granular temporary plugging agent is complicated, and it is easy to form residues in the formation and cause damage to the reservoir. A cross‐linked polymer temporary plugging agent is a widely used type of temporary plugging agent due to its easy injection and good plugging effect 11,12 . However, its cross‐linking reaction is difficult to control, and most of the cross‐linking agents required for preparation are highly toxic.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and properties of PAM/PLA composite degradable particle temporary plugging agent

Liu

et al. 2022

J of Applied Polymer Sci

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Using acrylamide (AM) and polylactic acid (PLA) as raw materials, polyacrylamide (PAM)/PLA composite temporary plugging agent TZDJ (TZDJ is a synthetic self‐degrading stopper) was synthesized by inverse suspension polymerization. The chemical structure, chemical composition, microscopic morphology, and thermal stability of TZDJ were characterized by Fourier infrared spectral analysis (FT‐IR), carbon nuclear magnetic resonance spectroscopy (13C NMR), scanning electron microscope (SEM), and thermogravimetric analysis (TGA). The degradation and plugging properties of TZDJ were studied by laboratory experiments, and the self‐degradation mechanism of TZDJ was proposed. The results show that TZDJ has good temperature and salt resistance, and it is completely degraded by hydrolysis at 180°C for 120 h. The fracture core displacement experiment shows that TZDJ has good plugging and core permeability recovery performance, and its temporary plugging rate and core permeability recovery rate are all above 90%. The FT‐IR and SEM analysis showed that the degradation process of TZDJ was divided into three stages: degradation of shell PAM, core PLA, and degradation product small molecules.

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Section: Introductionmentioning

confidence: 99%

Synthesis and properties of PAM/PLA composite degradable particle temporary plugging agent

Liu

et al. 2022

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

Design of Wideband Metamaterial Absorber for X-Band Application

Cited by 1 publication

References 21 publications

Synthesis and properties of PAM/PLA composite degradable particle temporary plugging agent

Synthesis and properties of PAM/PLA composite degradable particle temporary plugging agent

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