{"id":"https://openalex.org/W7204236503","doi":"https://doi.org/10.1038/s41598-026-67345-9","title":"Analysis of legacy geophysical data to delineate geologic hydrogen occurrences in the Midcontinent Rift System, Iowa, USA","display_name":"Analysis of legacy geophysical data to delineate geologic hydrogen occurrences in the Midcontinent Rift System, Iowa, USA","publication_year":2026,"publication_date":"2026-08-26","ids":{"openalex":"https://openalex.org/W7204236503","doi":"https://doi.org/10.1038/s41598-026-67345-9"},"language":"en","primary_location":{"id":"doi:10.1038/s41598-026-67345-9","doi":"https://doi.org/10.1038/s41598-026-67345-9","is_oa":true,"landing_page_url":"https://doi.org/10.1038/s41598-026-67345-9","pdf_url":"https://www.nature.com/articles/s41598-026-67345-9_reference.pdf","source":{"id":"https://openalex.org/S196734849","display_name":"Scientific Reports","issn_l":"2045-2322","issn":["2045-2322"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","doaj","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319908","host_organization_name":"Nature Portfolio","host_organization_lineage":["https://openalex.org/P4310319908","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Nature Portfolio","Springer Nature"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Scientific Reports","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.nature.com/articles/s41598-026-67345-9_reference.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5023090606","display_name":"Joseph P. Honings","orcid":"https://orcid.org/0009-0005-6160-7257","observed_orcids":["https://orcid.org/0009-0005-6160-7257"]},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]},{"id":"https://openalex.org/I4403928393","display_name":"Iowa Geological Survey","ror":"https://ror.org/01rxedt69","country_code":null,"type":"facility","lineage":["https://openalex.org/I126307644","https://openalex.org/I4403928393"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Joseph P. Honings","raw_affiliation_strings":["Iowa Geological Survey, The University of Iowa, Iowa City, IA, 52245, USA"],"raw_orcid":"https://orcid.org/0009-0005-6160-7257","affiliations":[{"raw_affiliation_string":"Iowa Geological Survey, The University of Iowa, Iowa City, IA, 52245, USA","institution_ids":["https://openalex.org/I126307644","https://openalex.org/I4403928393"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112324773","display_name":"Ryan J Clark","orcid":"https://orcid.org/0000-0002-4355-5351","observed_orcids":["https://orcid.org/0000-0002-4355-5351"]},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]},{"id":"https://openalex.org/I4403928393","display_name":"Iowa Geological Survey","ror":"https://ror.org/01rxedt69","country_code":null,"type":"facility","lineage":["https://openalex.org/I126307644","https://openalex.org/I4403928393"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ryan J. Clark","raw_affiliation_strings":["Iowa Geological Survey, The University of Iowa, Iowa City, IA, 52245, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Iowa Geological Survey, The University of Iowa, Iowa City, IA, 52245, USA","institution_ids":["https://openalex.org/I126307644","https://openalex.org/I4403928393"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5078104450","display_name":"John E. Malone","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]},{"id":"https://openalex.org/I4403928393","display_name":"Iowa Geological Survey","ror":"https://ror.org/01rxedt69","country_code":null,"type":"facility","lineage":["https://openalex.org/I126307644","https://openalex.org/I4403928393"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"John E. Malone","raw_affiliation_strings":["Iowa Geological Survey, The University of Iowa, Iowa City, IA, 52245, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Iowa Geological Survey, The University of Iowa, Iowa City, IA, 52245, USA","institution_ids":["https://openalex.org/I126307644","https://openalex.org/I4403928393"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5148282061","display_name":"Melissa Evans","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Melissa Evans","raw_affiliation_strings":["Battelle Carbon Services, Mason City, IA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Battelle Carbon Services, Mason City, IA, USA","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5064360714","display_name":"Hang Chen","orcid":"https://orcid.org/0000-0001-8979-182X","observed_orcids":["https://orcid.org/0000-0001-8979-182X"]},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Hang Chen","raw_affiliation_strings":["School of Earth, Environment, and Sustainability, The University of Iowa, Iowa City, IA, 52245, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Earth, Environment, and Sustainability, The University of Iowa, Iowa City, IA, 52245, USA","institution_ids":["https://openalex.org/I126307644"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5132568909","display_name":"Mengli Zhang","orcid":"https://orcid.org/0000-0002-3878-2031","observed_orcids":["https://orcid.org/0000-0002-3878-2031"]},"institutions":[{"id":"https://openalex.org/I167576493","display_name":"Colorado School of Mines","ror":"https://ror.org/04raf6v53","country_code":"US","type":"education","lineage":["https://openalex.org/I167576493"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Mengli Zhang","raw_affiliation_strings":["Center for Geophysics, Energy, and Minerals (CGEM), Colorado School of Mines, Golden, CO, 80401, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Geophysics, Energy, and Minerals (CGEM), Colorado School of Mines, Golden, CO, 80401, USA","institution_ids":["https://openalex.org/I167576493"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5148401762","display_name":"Youguo Li","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I167576493","display_name":"Colorado School of Mines","ror":"https://ror.org/04raf6v53","country_code":"US","type":"education","lineage":["https://openalex.org/I167576493"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Youguo Li","raw_affiliation_strings":["Center for Geophysics, Energy, and Minerals (CGEM), Colorado School of Mines, Golden, CO, 80401, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Geophysics, Energy, and Minerals (CGEM), Colorado School of Mines, Golden, CO, 80401, USA","institution_ids":["https://openalex.org/I167576493"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Avery Norman","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Avery Norman","raw_affiliation_strings":["School of Earth, Environment, and Sustainability, The University of Iowa, Iowa City, IA, 52245, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Earth, Environment, and Sustainability, The University of Iowa, Iowa City, IA, 52245, USA","institution_ids":["https://openalex.org/I126307644"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5148384366","display_name":"Zoe Shadravan","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Zoe Shadravan","raw_affiliation_strings":["School of Earth, Environment, and Sustainability, The University of Iowa, Iowa City, IA, 52245, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Earth, Environment, and Sustainability, The University of Iowa, Iowa City, IA, 52245, USA","institution_ids":["https://openalex.org/I126307644"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5148220125","display_name":"Chase Evanson","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Chase Evanson","raw_affiliation_strings":["School of Earth, Environment, and Sustainability, The University of Iowa, Iowa City, IA, 52245, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Earth, Environment, and Sustainability, The University of Iowa, Iowa City, IA, 52245, USA","institution_ids":["https://openalex.org/I126307644"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5148190421","display_name":"Lillie Carreon","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Lillie Carreon","raw_affiliation_strings":["School of Earth, Environment, and Sustainability, The University of Iowa, Iowa City, IA, 52245, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Earth, Environment, and Sustainability, The University of Iowa, Iowa City, IA, 52245, USA","institution_ids":["https://openalex.org/I126307644"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5023090606"],"corresponding_institution_ids":["https://openalex.org/I126307644","https://openalex.org/I4403928393"],"apc_list":{"value":2690,"currency":"USD","value_usd":2690},"apc_paid":{"value":2690,"currency":"USD","value_usd":2690},"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.58888145,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10399","display_name":"Hydrocarbon exploration and reservoir analysis","score":0.9824000000953674,"subfield":{"id":"https://openalex.org/subfields/2211","display_name":"Mechanics of Materials"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10399","display_name":"Hydrocarbon exploration and reservoir analysis","score":0.9824000000953674,"subfield":{"id":"https://openalex.org/subfields/2211","display_name":"Mechanics of Materials"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11302","display_name":"CO2 Sequestration and Geologic Interactions","score":0.003700000001117587,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13193","display_name":"Geological Studies and Exploration","score":0.0035000001080334187,"subfield":{"id":"https://openalex.org/subfields/1907","display_name":"Geology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/geologic-hydrogen","display_name":"geologic hydrogen","score":0.9860000014305115},{"id":"https://openalex.org/keywords/serpentinization","display_name":"serpentinization","score":0.7979999780654907},{"id":"https://openalex.org/keywords/midcontinent-rift","display_name":"Midcontinent Rift","score":0.8700000047683716},{"id":"https://openalex.org/keywords/petrophysical-logs","display_name":"petrophysical logs","score":0.8880000114440918},{"id":"https://openalex.org/keywords/basalt","display_name":"basalt","score":0.4950000047683716},{"id":"https://openalex.org/keywords/natural-gas-storage","display_name":"natural gas storage","score":0.5329999923706055},{"id":"https://openalex.org/keywords/hydrogen-accumulation","display_name":"hydrogen accumulation","score":0.4440000057220459},{"id":"https://openalex.org/keywords/reservoir-modeling","display_name":"reservoir modeling","score":0.6079999804496765},{"id":"https://openalex.org/keywords/co2-emissions","display_name":"CO2 emissions","score":0.5440000295639038}],"concepts":[{"id":"https://openalex.org/C46293882","wikidata":"https://www.wikidata.org/wiki/Q2080707","display_name":"Petrophysics","level":3,"score":0.8300999999046326},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.7904000282287598},{"id":"https://openalex.org/C50682988","wikidata":"https://www.wikidata.org/wiki/Q473935","display_name":"Rift","level":3,"score":0.7407000064849854},{"id":"https://openalex.org/C59427239","wikidata":"https://www.wikidata.org/wiki/Q40858","display_name":"Natural gas","level":2,"score":0.5921000242233276},{"id":"https://openalex.org/C6494504","wikidata":"https://www.wikidata.org/wiki/Q82480","display_name":"Sedimentary rock","level":2,"score":0.49889999628067017},{"id":"https://openalex.org/C167284885","wikidata":"https://www.wikidata.org/wiki/Q764372","display_name":"Mafic","level":2,"score":0.4927999973297119},{"id":"https://openalex.org/C35817400","wikidata":"https://www.wikidata.org/wiki/Q2383566","display_name":"Well logging","level":2,"score":0.49129998683929443},{"id":"https://openalex.org/C161509811","wikidata":"https://www.wikidata.org/wiki/Q43338","display_name":"Basalt","level":2,"score":0.483599990606308},{"id":"https://openalex.org/C512968161","wikidata":"https://www.wikidata.org/wiki/Q556","display_name":"Hydrogen","level":2,"score":0.4706999957561493},{"id":"https://openalex.org/C68189081","wikidata":"https://www.wikidata.org/wiki/Q12748","display_name":"Fossil fuel","level":2,"score":0.44780001044273376},{"id":"https://openalex.org/C17409809","wikidata":"https://www.wikidata.org/wiki/Q161764","display_name":"Geochemistry","level":1,"score":0.42829999327659607},{"id":"https://openalex.org/C2776608160","wikidata":"https://www.wikidata.org/wiki/Q4785462","display_name":"Natural (archaeology)","level":2,"score":0.39250001311302185},{"id":"https://openalex.org/C2780659211","wikidata":"https://www.wikidata.org/wiki/Q181699","display_name":"Carbonate","level":2,"score":0.39160001277923584},{"id":"https://openalex.org/C5900021","wikidata":"https://www.wikidata.org/wiki/Q163082","display_name":"Petrology","level":1,"score":0.3806999921798706},{"id":"https://openalex.org/C32848823","wikidata":"https://www.wikidata.org/wiki/Q945344","display_name":"Rift zone","level":4,"score":0.3756999969482422},{"id":"https://openalex.org/C107385308","wikidata":"https://www.wikidata.org/wiki/Q43521","display_name":"Geologic time scale","level":3,"score":0.3700000047683716},{"id":"https://openalex.org/C161028810","wikidata":"https://www.wikidata.org/wiki/Q2138304","display_name":"Regional geology","level":4,"score":0.361299991607666},{"id":"https://openalex.org/C55358776","wikidata":"https://www.wikidata.org/wiki/Q7250848","display_name":"Prospectivity mapping","level":3,"score":0.34709998965263367},{"id":"https://openalex.org/C1965285","wikidata":"https://www.wikidata.org/wiki/Q8008","display_name":"Earth science","level":1,"score":0.3366999924182892},{"id":"https://openalex.org/C113740612","wikidata":"https://www.wikidata.org/wiki/Q1845437","display_name":"Natural gas field","level":3,"score":0.3142000138759613},{"id":"https://openalex.org/C126457475","wikidata":"https://www.wikidata.org/wiki/Q12131447","display_name":"Mineral resource classification","level":2,"score":0.2953999936580658},{"id":"https://openalex.org/C2780364934","wikidata":"https://www.wikidata.org/wiki/Q22693","display_name":"Olivine","level":2,"score":0.29190000891685486},{"id":"https://openalex.org/C199289684","wikidata":"https://www.wikidata.org/wiki/Q83353","display_name":"Mineralogy","level":1,"score":0.2653000056743622},{"id":"https://openalex.org/C193539361","wikidata":"https://www.wikidata.org/wiki/Q1887426","display_name":"Geologic record","level":2,"score":0.2648000121116638},{"id":"https://openalex.org/C9652623","wikidata":"https://www.wikidata.org/wiki/Q190109","display_name":"Field (mathematics)","level":2,"score":0.2603999972343445}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1038/s41598-026-67345-9","doi":"https://doi.org/10.1038/s41598-026-67345-9","is_oa":true,"landing_page_url":"https://doi.org/10.1038/s41598-026-67345-9","pdf_url":"https://www.nature.com/articles/s41598-026-67345-9_reference.pdf","source":{"id":"https://openalex.org/S196734849","display_name":"Scientific Reports","issn_l":"2045-2322","issn":["2045-2322"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","doaj","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319908","host_organization_name":"Nature Portfolio","host_organization_lineage":["https://openalex.org/P4310319908","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Nature Portfolio","Springer Nature"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Scientific Reports","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1038/s41598-026-67345-9","doi":"https://doi.org/10.1038/s41598-026-67345-9","is_oa":true,"landing_page_url":"https://doi.org/10.1038/s41598-026-67345-9","pdf_url":"https://www.nature.com/articles/s41598-026-67345-9_reference.pdf","source":{"id":"https://openalex.org/S196734849","display_name":"Scientific Reports","issn_l":"2045-2322","issn":["2045-2322"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","doaj","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319908","host_organization_name":"Nature Portfolio","host_organization_lineage":["https://openalex.org/P4310319908","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Nature Portfolio","Springer Nature"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Scientific Reports","raw_type":"journal-article"},"sustainable_development_goals":[],"sustainable_development_goals_aurora":[],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320332183","display_name":"U.S. Geological Survey","ror":"https://ror.org/035a68863"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7204236503.pdf","grobid_xml":"https://content.openalex.org/works/W7204236503.grobid-xml"},"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"Geologic":[0],"hydrogen":[1,48,65,95,138,175],"is":[2,13,36,146],"among":[3],"contemporary":[4],"global":[5],"interests":[6],"to":[7,63,71,148,176],"minimize":[8],"carbon":[9],"dioxide":[10],"emissions.":[11],"It":[12],"mainly":[14],"produced":[15],"by":[16,196],"serpentinization":[17],"of":[18,30,93,131,137,151],"olivine":[19],"within":[20,106],"mafic":[21],"rocks,":[22],"which":[23,192],"comprise":[24],"the":[25,31,39,86,107,122,141,149,179,190],"Midcontinent":[26],"Rift":[27],"System":[28],"(MRS)":[29],"midwestern":[32],"United":[33],"States.":[34],"Exploration":[35],"active":[37],"along":[38],"MRS":[40,123],"in":[41,44,67,103,121,134],"Iowa,":[42],"where":[43],"1969,":[45],"a":[46,54],"96.3%":[47],"gas":[49,56,169],"measurement":[50],"was":[51],"reported":[52],"from":[53,78,85,187],"natural":[55,168],"storage":[57],"field":[58],"near":[59],"Vincent.":[60],"Data":[61],"useful":[62],"geologic":[64,152],"exploration":[66],"Iowa":[68],"are":[69,101,119,161],"limited":[70],"legacy":[72],"petrophysical":[73,132],"logs":[74,133,160],"and":[75,96,125,158,182],"seismic":[76],"lines":[77],"early":[79],"fossil":[80],"energy":[81],"exploration.":[82],"Legacy":[83],"data":[84],"Vincent":[87],"area":[88],"were":[89,185],"evaluated":[90],"for":[91,163],"evidence":[92],"subsurface":[94],"system":[97],"components.":[98],"Hydrogen":[99],"shows":[100],"indicated":[102],"multiple":[104],"wells":[105,177],"upper":[108],"Eau":[109],"Claire":[110],"carbonate.":[111],"Faults":[112],"that":[113],"would":[114],"serve":[115],"as":[116],"migration":[117],"pathways":[118],"evident":[120],"basalts":[124],"overlying":[126],"sedimentary":[127],"strata.":[128],"The":[129],"response":[130],"interpreted":[135],"zones":[136],"accumulation":[139],"suggest":[140],"obsolete":[142],"neutron-gamma":[143],"logging":[144],"tool":[145],"sensitive":[147],"presence":[150],"hydrogen,":[153],"but":[154],"ancillary":[155],"resistivity,":[156],"acoustic,":[157],"density":[159],"necessary":[162],"further":[164],"interpretation.":[165],"Pilot":[166],"study":[167],"injections":[170],"may":[171],"have":[172],"displaced":[173],"accumulated":[174],"at":[178],"structure\u2019s":[180],"flanks,":[181],"some":[183],"samples":[184],"likely":[186],"intervals":[188],"outside":[189],"accumulation,":[191],"could":[193],"be":[194],"tested":[195],"reservoir":[197],"modeling":[198],"studies.":[199]},"counts_by_year":[],"updated_date":"2026-10-14T16:39:01.820549","created_date":"2026-08-27T00:00:00"}
