3 years ago

Preparation of poly(acrylamide-co-acrylic acid)/silica nanocomposite microspheres and their performance as a plugging material for deep profile control

Preparation of poly(acrylamide-co-acrylic acid)/silica nanocomposite microspheres and their performance as a plugging material for deep profile control
Yang Pei, Yangchuan Ke, Chenlu Zeng, Jingqi Ji
In this work, poly(acrylamide-co-acrylic acid)/silica [poly(AM-co-AA)/SiO2] microspheres were prepared by inverse phase suspension polymerization in the presence of γ-3-(trimethoxysilyl) propyl methacrylate (or 3-methacryloxypropyltrimethoxysilane) modified SiO2. The effects of SiO2 nanoparticles on tuning morphology and properties of the nanocomposite microspheres were studied. Plugging ability and oil displacement performance were also systematically investigated by single- and double-tube sand pack models. The results showed that SiO2 nanoparticles can effectively adjust surface smoothness, swelling behavior, and thermal stability of the nanocomposite microspheres. Compared with pure copolymer microspheres, these nanocomposite microspheres also displayed better salt tolerance and shear resistance. Such multifunctional nanocomposite microspheres can provide effective plugging in the high-permeability channels and can also achieve deep profile control. The highest plugging rate can be 86.11% and the oil recovery for low-permeability tube was enhanced by 19.69%. This research will provide a candidate material for the further enhanced oil recovery (EOR) research and supply the theoretical support for profile control system in field application. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45502.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/app.45502

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.