4 years ago

A new inhibitor of P(AM-DMDAAC)/PVA intermacromolecular complex for shale in drilling fluids

A new inhibitor of P(AM-DMDAAC)/PVA intermacromolecular complex for shale in drilling fluids
Le Wang, Xianmin Zhang, Guancheng Jiang, Yang Xuan, Qihui Jiang, Tengfei Dong
A new poly(acrylamide-dimethyldiallyammonium chloride)/poly(vinyl alcohol) [P(AM-DMDAAC)/PVA, ADVA] intermacromolecular complex inhibitor of shale-hydrated swelling was studied for its ability to counter well instability. ADVA exhibited excellent inhibitory performance, and the probable inhibition mechanism was determined. The hydrophilic groups in ADVA adsorbed to montmorillonite (MMT) through hydrogen bonding and cation exchange, and the hydrophobic groups isolated water from MMT. ADVA adhered to the MMT and entered the interlayer instead of water due to the PVA structure. ADVA could also form a thin film and reduce the hydrophilic property of the shale core to prevent water from contacting the shale formation. With the structure of poly(acrylamide-dimethyldiallyammonium chloride) (AD), the complex adsorbed and bridged MMT to reduce the filtration loss of the basic mud after hot-rolling. This prevented contact of free water from drilling fluids with the shale formation during the drilling process. With these properties, ADVA demonstrated potential application as an inhibitor for use in drilling fluids. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45584.

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

DOI: 10.1002/app.45584

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.