{
  "abstract": "Quantifying how coal porosity and permeability vary with effective stress is essential for forecasting coalbed methane (CBM) deliverability, yet the coupled stress response of low-rank coals and its variation among wellfields remain poorly constrained. Nine cores from three wellfields of the Fukang mining area─Kuangou (KG), Wudong (WD), and Donggou (DG)─were tested under stepwise hydrostatic loading of 2.07–15.86 MPa while porosity and permeability were measured simultaneously. Both properties decrease exponentially with stress, but permeability declines far more strongly: at maximum loading, the porosity damage ratio ranges from 15.9% to 69.55%, whereas the permeability damage ratio reaches 82.2–96.7%, and permeability sensitivity across wellfields follows DG ≈ WD > KG. A porosity–permeability ratio (e = φ/k) and a relative sensitivity parameter (R) were introduced to quantify the storage–seepage mismatch, with e rising continuously along the loading path. Fracture density, aperture, pore-throat connectivity, and mineral infilling jointly govern the heterogeneous response. The results provide quantitative criteria for staged depressurization and fracturing design in low-rank CBM development.",
  "abstract_shown": true,
  "affiliations": [
    "Henan Polytechnic University , , ,"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Bing Bai"
    },
    {
      "affs": [
        0
      ],
      "name": "Jienan Pan",
      "orcid": "0000-0001-7995-0129"
    },
    {
      "affs": [
        0
      ],
      "name": "Zhenzhi Wang",
      "orcid": "0000-0002-1897-1310"
    },
    {
      "affs": [
        0
      ],
      "name": "Yidong Li"
    },
    {
      "affs": [
        0
      ],
      "name": "Meng Li"
    },
    {
      "affs": [
        0
      ],
      "name": "Xuetian Du"
    },
    {
      "affs": [
        0
      ],
      "name": "Nannan Cheng"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5a7gj4yk7daze.bib",
  "cited_by": 0,
  "doi": "10.1021/acsomega.6c09182",
  "fulltext_url": null,
  "id": "5a7gj4yk7daze",
  "issns": [
    "2470-1343"
  ],
  "landing_url": "https://pubs.acs.org/acsodf/article/doi/10.1021/acsomega.6c09182/5458804/Coupling-Characteristics-and-Sensitivity",
  "language": null,
  "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": [
    [
      "openalex",
      "2212|Coal Properties and Utilization"
    ]
  ],
  "openalex": "W7223961285",
  "pdf_url": "https://pubs.acs.org/doi/pdf/10.1021/acsomega.6c09182",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-27",
  "publisher": "American Chemical Society (ACS)",
  "ris": "https://research.draconitic.com/paper/5a7gj4yk7daze.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:40Z",
      "native_id": "10.1021/acsomega.6c09182",
      "source": "crossref",
      "url": "https://pubs.acs.org/acsodf/article/doi/10.1021/acsomega.6c09182/5458804/Coupling-Characteristics-and-Sensitivity"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "issn:2470-1343",
      "subfield": "general"
    }
  ],
  "title": "Coupling Characteristics and Sensitivity Differences of Coal Porosity and Permeability with Stress in Different Wellfields of Fukang Mining Area",
  "title_text": "Coupling Characteristics and Sensitivity Differences of Coal Porosity and Permeability with Stress in Different Wellfields of Fukang Mining Area",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:40Z",
  "url": "https://research.draconitic.com/paper/5a7gj4yk7daze",
  "venue": "ACS Omega",
  "versions": []
}