阳离子对交联聚合物凝胶体系性能的影响

Translated title of the contribution: The effect of cations on gelation of cross-linked polymers

Mostafa Sedaghatzadeh, Khalil Shahbazi, Peyman Pourafshary*, Seyed Ali Razavi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The effects of different cation concentrations and types on rheological property and stability of Guar, Xanthan, and Partially Hydrolyzed Polyacrylamide (HPAM) cross-linked gels were analyzed through experiments. Also, a new approach was developed to reduce the negative effects of cation by application of multi-walled carbon nano-tubes (MWCNTs). The presence of cations in cross-linked gel system will reduce the viscosity of gel, the higher the cation concentration is, the lower the viscosity will be. The bivalent cation has a greater viscosity reduction effect on gel than monovalent cation. The stability of cross-linked gels is worse with cations, this situation becomes more serious under higher salinity. MWCNTs were added to HPAM gel, cross-linked by (3-Aminopropyl) triethoxysilane (APTES), they surrounded cations and removed them from polymers and reduced the reaction possibility. This method enhances the viscosity and breakdown pressure of cross-linked gels, improves the stability of HPAM cross-linked gel under different operating conditions, and can be applied to related drilling projects.

Translated title of the contributionThe effect of cations on gelation of cross-linked polymers
Original languageChinese (Traditional)
Pages (from-to)782-788 and 802
JournalShiyou Kantan Yu Kaifa/Petroleum Exploration and Development
Volume46
Issue number4
DOIs
Publication statusPublished - Aug 23 2019
Externally publishedYes

Keywords

  • Cation
  • Cross-linked polymer
  • Gel system
  • Multi-walled carbon nano-tubes
  • Rheological property
  • Stability

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Geotechnical Engineering and Engineering Geology
  • Geology

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