{
  "abstract": "High-temperature shale oil and gas drilling calls for effective and environmentally friendly additives capable of control clay hydration, shale dispersion, and wellbore instability in water-based drilling fluids. In this study, we prepared an acid-modified biochar (BC)/poly(arginyl-lysine) (JL) composite, designated JL-BC, via physical blending, and then evaluated its inhibition performance by means of linear swelling and hot-rolling recovery tests. Under treatment withJL-BC solution, the sodium bentonite (Na-BT) swelling height decreased to 4.49 mm at 150 °C for 16 h, while shale cuttings recovery reached 92.1% after aging at 220 °C for 16 h, results that outperforming those of potassium chloride (KCl), polyetheramine (PEA), 2,3-epoxypropyltrimethylammonium chloride (EPTAC), and dopamine (DA). Furthermore, the water-based drilling fluid supplemented with JL-BC maintained good rheological behavior, fluid loss control and inhibition performance after aging at 180 °C for 16 h. Mechanistic analyses revealed that JL-BC adsorbed strongly onto clay surfaces via electrostatic interactions and hydrogen bonding, thereby weakening the electrostatic repulsion between clay particles and reducing the amount of hydration-related water associated with Na-BT, which contributed to the inhibition of clay hydration and swelling. An environmental friendliness assessment showed that JL-BC was nontoxic and readily biodegradable, that it did not significantly increase soil heavy metal concentrations and promoted nutrient accumulation in wheat seedlings. Collectively, these findings indicate that JL-BC is a promising environmentally friendly shale inhibitor for high-temperature applications.",
  "abstract_shown": true,
  "affiliations": [
    "Chinese Academy of Geological Sciences , ,"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Qiannan Wang"
    },
    {
      "affs": [
        0
      ],
      "name": "Yi Zhang",
      "orcid": "0009-0004-1472-9115"
    },
    {
      "affs": [
        0
      ],
      "name": "Wei Wang"
    },
    {
      "affs": [
        0
      ],
      "name": "Hengqian Ran"
    },
    {
      "affs": [
        0
      ],
      "name": "Zheng Guo"
    },
    {
      "affs": [
        0
      ],
      "name": "Shiyu Zhi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6k8mfbcg9w9hp.bib",
  "cited_by": 0,
  "doi": "10.1021/acsomega.6c06752",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13737885/",
  "id": "6k8mfbcg9w9hp",
  "issns": [
    "2470-1343"
  ],
  "landing_url": "https://pubs.acs.org/acsodf/article/doi/10.1021/acsomega.6c06752/5454863/Acid-Modified-Biochar-poly-arginyl-Lysine",
  "language": "en",
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Article"
    ],
    [
      "openalex",
      "2212|Drilling and Well Engineering"
    ]
  ],
  "openalex": "W7223107307",
  "pdf_url": "https://pubs.acs.org/doi/pdf/10.1021/acsomega.6c06752",
  "pmcid": "PMC13737885",
  "pmid": "42992030",
  "published": "2026-10-21",
  "publisher": "American Chemical Society (ACS)",
  "ris": "https://research.draconitic.com/paper/6k8mfbcg9w9hp.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:39Z",
      "native_id": "10.1021/acsomega.6c06752",
      "source": "crossref",
      "url": "https://pubs.acs.org/acsodf/article/doi/10.1021/acsomega.6c06752/5454863/Acid-Modified-Biochar-poly-arginyl-Lysine"
    },
    {
      "first_seen": "2026-11-09T12:22:59Z",
      "native_id": "PMC13737885",
      "source": "pmc",
      "url": "https://doi.org/10.1021/acsomega.6c06752"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "issn:2470-1343",
      "subfield": "general"
    }
  ],
  "title": "Acid-Modified Biochar/poly(arginyl-Lysine) Composite as an Environmentally Friendly High-Temperature Shale Inhibitor",
  "title_text": "Acid-Modified Biochar/poly(arginyl-Lysine) Composite as an Environmentally Friendly High-Temperature Shale Inhibitor",
  "type": "peer-reviewed",
  "updated_at": "2026-11-09T12:22:59Z",
  "url": "https://research.draconitic.com/paper/6k8mfbcg9w9hp",
  "venue": "ACS Omega",
  "versions": []
}