{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T16:10:19Z","timestamp":1790698219575,"version":"4.1.0"},"reference-count":39,"publisher":"American Chemical Society (ACS)","issue":"38","license":[{"start":{"date-parts":[[2026,9,13]],"date-time":"2026-09-13T00:00:00Z","timestamp":1789257600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"publisher","award":["2023YFB3211002"],"award-info":[{"award-number":["2023YFB3211002"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100018555","name":"Science and Technology Program of Guizhou Province","doi-asserted-by":"publisher","award":["[2023] 131"],"award-info":[{"award-number":["[2023] 131"]}],"id":[{"id":"10.13039\/501100018555","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["42274165"],"award-info":[{"award-number":["42274165"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,9,29]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Deep coalbed methane, a key strategic resource for unconventional natural gas supply, is abundant in the Ordos Basin, China. However, limited systematic research on the state of gas occurrence and critical depth, combined with sparse gas content and in situ stress measurements, has severely restricted the optimization of developmental strategies. Focusing on the 8+9# coal seam of the Taiyuan Formation in the central Linxing\u2013Shenfu Block, Ordos Basin, an improved gas content prediction model is established, which comprehensively accounts for matrix compression, thermal expansion, adsorption-induced swelling, and the pore volume occupied by adsorbed gas. The adsorbed gas content trend was exhibited by logging data. Continuous in situ stress profiles were predicted using logging data combined with the Eaton method and Huang Rongzun\u2019s in situ stress model. Critical depth was determined using the gas content evolution and in situ stress regime transition. The minimum horizontal stress of the 8+9# coal seam exhibited a \u201chigher in the south and lower in the north\u201d distribution pattern. The gas content critical depth is 1076\u20131704 m, the in situ stress critical depth is 1138\u20131727 m, and the integrated critical depth is 1076\u20131727 m, showing a \u201cdeeper in the south and shallower in the north\u201d distribution. Based on the three-stage variation pattern of gas content and stress regime, a layered development strategy was proposed. This study supports location optimization and drilling and fracturing parameter design, contributing to safe, efficient, and economical deep coalbed methane development under similar geological conditions.<\/jats:p>","DOI":"10.1021\/acsomega.6c08674","type":"journal-article","created":{"date-parts":[[2026,9,13]],"date-time":"2026-09-13T14:01:26Z","timestamp":1789308086000},"page":"58270-58283","source":"Crossref","is-referenced-by-count":0,"title":["In Situ Gas Content\nPrediction of Deep Coal Seams\nBased on Logging in the Central Linxing\u2013Shenfu Block"],"prefix":"10.1021","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-0839-7650","authenticated-orcid":true,"given":"Yuyan","family":"Che","sequence":"first","affiliation":[{"name":"China University of Mining and Technology (Beijing) , , ,","place":["Beijing, China, 100083"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guangui","family":"Zou","sequence":"additional","affiliation":[{"name":"China University of Mining and Technology (Beijing) , , ,","place":["Beijing, China, 100083"]},{"name":"State Key Laboratory for Fine Exploration and Intelligent Development of Coal Resources , ,","place":["Beijing, China, 100083"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suping","family":"Peng","sequence":"additional","affiliation":[{"name":"China University of Mining and Technology (Beijing) , , ,","place":["Beijing, China, 100083"]},{"name":"State Key Laboratory for Fine Exploration and Intelligent Development of Coal Resources , ,","place":["Beijing, China, 100083"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiasheng","family":"She","sequence":"additional","affiliation":[{"name":"China Coal Tianjin Design Engineering Co., Ltd. , ,","place":["Tianjin, China, 300120"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-7492-030X","authenticated-orcid":true,"given":"Xiaodong","family":"Wang","sequence":"additional","affiliation":[{"name":"China University of Mining and Technology (Beijing) , , ,","place":["Beijing, China, 100083"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hu","family":"Zeng","sequence":"additional","affiliation":[{"name":"China Academy of Railway Sciences Corporation Limited , , ,","place":["Beijing, China, 100081"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3672-7848","authenticated-orcid":true,"given":"Ke","family":"Ren","sequence":"additional","affiliation":[{"name":"Aerospace Information Technology University , , ,","place":["Jinan, China, 250299"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,9,13]]},"reference":[{"key":"2026092911105939800_cit1","first-page":"194","article-title":"Distribution of in-situ stress and\nprediction of critical depth for deep coalbed methane in Enhong Block\nof eastern Yunnan region","volume":"48","author":"Ju","year":"2020","journal-title":"Coal Sci. 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Mater."},{"key":"2026092911105939800_cit39","first-page":"33","article-title":"Differences\nin geological\nconditions of deep and shallow coalbed methane andtheir formation\nmechanisms","volume":"52","author":"Xu","year":"2024","journal-title":"Coal Geol. Explor."}],"container-title":["ACS Omega"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pubs.acs.org\/doi\/pdf\/10.1021\/acsomega.6c08674","content-type":"application\/pdf","content-version":"vor","intended-application":"unspecified"},{"URL":"https:\/\/pubs.acs.org\/acsodf\/article-pdf\/11\/38\/58270\/68493161\/acsomega.6c08674.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/pubs.acs.org\/acsodf\/article-pdf\/11\/38\/58270\/68493161\/acsomega.6c08674.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T15:50:28Z","timestamp":1790697028000},"score":1,"resource":{"primary":{"URL":"https:\/\/pubs.acs.org\/acsodf\/article\/11\/38\/58270\/5428979\/In-Situ-Gas-Content-Prediction-of-Deep-Coal-Seams"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,13]]},"references-count":39,"journal-issue":{"issue":"38","published-online":{"date-parts":[[2026,9,13]]},"published-print":{"date-parts":[[2026,9,29]]}},"URL":"https:\/\/doi.org\/10.1021\/acsomega.6c08674","relation":{},"ISSN":["2470-1343"],"issn-type":[{"value":"2470-1343","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,13]]}}}