{"id":"https://openalex.org/W7128093619","doi":"https://doi.org/10.30632/pjv67n1-2026a5","title":"Beyond Gas Bubbles in Norwegian Oil Fields: An Integrated Technique to Understand Reservoir Fluid Distribution","display_name":"Beyond Gas Bubbles in Norwegian Oil Fields: An Integrated Technique to Understand Reservoir Fluid Distribution","publication_year":2026,"publication_date":"2026-02-01","ids":{"openalex":"https://openalex.org/W7128093619","doi":"https://doi.org/10.30632/pjv67n1-2026a5"},"language":"en","primary_location":{"id":"doi:10.30632/pjv67n1-2026a5","doi":"https://doi.org/10.30632/pjv67n1-2026a5","is_oa":false,"landing_page_url":"https://doi.org/10.30632/pjv67n1-2026a5","pdf_url":null,"source":{"id":"https://openalex.org/S8807448","display_name":"Petrophysics \u2013 The SPWLA Journal of Formation Evaluation and Reservoir Description","issn_l":"1529-9074","issn":["1529-9074","2641-4112"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-1","norway-1","poland-40","russia-white-list-1"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Petrophysics \u2013 The SPWLA Journal of Formation Evaluation and Reservoir Description","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5113707001","display_name":"Mar\u00eda Cecilia Bravo","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Maria Cecilia Bravo","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5125170666","display_name":"Equinor","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Equinor","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5119871982","display_name":"S. Roblero","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Silvia Roblero Nunez","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5125170666","display_name":"Equinor","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Equinor","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5012823215","display_name":"Sandrine Donnadieu","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Sandrine Donnadieu","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5125170666","display_name":"Equinor","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Equinor","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057757519","display_name":"Frode Ungar","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Frode Ungar","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5125170666","display_name":"Equinor","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Equinor","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016000262","display_name":"Gulnar Yerkinkyzy","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Gulnar Yerkinkyzy","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5125170666","display_name":"Equinor","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Equinor","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5159766569","display_name":"Tao Yang","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Tao Yang","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5125170666","display_name":"Equinor","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Equinor","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5033516748","display_name":"Paal Fristad","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Paal Fristad","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5125170666","display_name":"Equinor","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Equinor","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.04970882,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"67","issue":"1","first_page":"68","last_page":"80"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10399","display_name":"Hydrocarbon exploration and reservoir analysis","score":0.9951000213623047,"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"}},"topics":[{"id":"https://openalex.org/T10399","display_name":"Hydrocarbon exploration and reservoir analysis","score":0.9951000213623047,"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"}},{"id":"https://openalex.org/T10892","display_name":"Drilling and Well Engineering","score":0.002400000113993883,"subfield":{"id":"https://openalex.org/subfields/2103","display_name":"Fuel Technology"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11630","display_name":"Petroleum Processing and Analysis","score":0.00039999998989515007,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/depleted-oil-reservoirs","display_name":"depleted oil reservoirs","score":0.6740000247955322},{"id":"https://openalex.org/keywords/moving-contact","display_name":"moving contact","score":0.6579999923706055},{"id":"https://openalex.org/keywords/borehole-resistivity","display_name":"borehole resistivity","score":0.902999997138977},{"id":"https://openalex.org/keywords/pvt-analysis","display_name":"PVT analysis","score":0.6740000247955322}],"concepts":[{"id":"https://openalex.org/C46293882","wikidata":"https://www.wikidata.org/wiki/Q2080707","display_name":"Petrophysics","level":3,"score":0.838699996471405},{"id":"https://openalex.org/C78762247","wikidata":"https://www.wikidata.org/wiki/Q1273174","display_name":"Petroleum engineering","level":1,"score":0.8052999973297119},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.6200000047683716},{"id":"https://openalex.org/C68189081","wikidata":"https://www.wikidata.org/wiki/Q12748","display_name":"Fossil fuel","level":2,"score":0.5254999995231628},{"id":"https://openalex.org/C150560799","wikidata":"https://www.wikidata.org/wiki/Q502102","display_name":"Borehole","level":2,"score":0.5202000141143799},{"id":"https://openalex.org/C140779682","wikidata":"https://www.wikidata.org/wiki/Q210868","display_name":"Sampling (signal processing)","level":3,"score":0.4740999937057495},{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.41819998621940613},{"id":"https://openalex.org/C2779681308","wikidata":"https://www.wikidata.org/wiki/Q1049254","display_name":"Enhanced oil recovery","level":2,"score":0.4090999960899353},{"id":"https://openalex.org/C548895740","wikidata":"https://www.wikidata.org/wiki/Q22656","display_name":"Petroleum","level":2,"score":0.38690000772476196},{"id":"https://openalex.org/C59427239","wikidata":"https://www.wikidata.org/wiki/Q40858","display_name":"Natural gas","level":2,"score":0.3792000114917755},{"id":"https://openalex.org/C2778904306","wikidata":"https://www.wikidata.org/wiki/Q7981117","display_name":"Well control","level":3,"score":0.3741999864578247},{"id":"https://openalex.org/C2780424376","wikidata":"https://www.wikidata.org/wiki/Q7981274","display_name":"Wellhead","level":2,"score":0.36890000104904175},{"id":"https://openalex.org/C2777093003","wikidata":"https://www.wikidata.org/wiki/Q6508345","display_name":"Lead (geology)","level":2,"score":0.3653999865055084},{"id":"https://openalex.org/C183250156","wikidata":"https://www.wikidata.org/wiki/Q5916050","display_name":"Reservoir engineering","level":3,"score":0.3540000021457672},{"id":"https://openalex.org/C113215200","wikidata":"https://www.wikidata.org/wiki/Q1845437","display_name":"Petroleum reservoir","level":2,"score":0.3506999909877777},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.3440000116825104},{"id":"https://openalex.org/C90278072","wikidata":"https://www.wikidata.org/wiki/Q216320","display_name":"Fluid dynamics","level":2,"score":0.3400000035762787},{"id":"https://openalex.org/C148043351","wikidata":"https://www.wikidata.org/wiki/Q4456944","display_name":"Current (fluid)","level":2,"score":0.3264000117778778},{"id":"https://openalex.org/C113740612","wikidata":"https://www.wikidata.org/wiki/Q1845437","display_name":"Natural gas field","level":3,"score":0.3248000144958496},{"id":"https://openalex.org/C5900021","wikidata":"https://www.wikidata.org/wiki/Q163082","display_name":"Petrology","level":1,"score":0.29010000824928284},{"id":"https://openalex.org/C187320778","wikidata":"https://www.wikidata.org/wiki/Q1349130","display_name":"Geotechnical engineering","level":1,"score":0.28130000829696655},{"id":"https://openalex.org/C526740375","wikidata":"https://www.wikidata.org/wiki/Q862571","display_name":"Petroleum industry","level":2,"score":0.2736999988555908},{"id":"https://openalex.org/C2781101838","wikidata":"https://www.wikidata.org/wiki/Q5470036","display_name":"Formation evaluation","level":2,"score":0.27320000529289246},{"id":"https://openalex.org/C14641988","wikidata":"https://www.wikidata.org/wiki/Q7315329","display_name":"Reservoir modeling","level":2,"score":0.2700999975204468},{"id":"https://openalex.org/C170152797","wikidata":"https://www.wikidata.org/wiki/Q2348608","display_name":"Environmental geology","level":4,"score":0.26989999413490295},{"id":"https://openalex.org/C2777560178","wikidata":"https://www.wikidata.org/wiki/Q587682","display_name":"Oil well","level":2,"score":0.2687000036239624},{"id":"https://openalex.org/C44013972","wikidata":"https://www.wikidata.org/wiki/Q3614969","display_name":"Oil analysis","level":2,"score":0.2621999979019165},{"id":"https://openalex.org/C34527478","wikidata":"https://www.wikidata.org/wiki/Q16000119","display_name":"Igneous petrology","level":5,"score":0.2587999999523163}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.30632/pjv67n1-2026a5","doi":"https://doi.org/10.30632/pjv67n1-2026a5","is_oa":false,"landing_page_url":"https://doi.org/10.30632/pjv67n1-2026a5","pdf_url":null,"source":{"id":"https://openalex.org/S8807448","display_name":"Petrophysics \u2013 The SPWLA Journal of Formation Evaluation and Reservoir Description","issn_l":"1529-9074","issn":["1529-9074","2641-4112"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-1","norway-1","poland-40","russia-white-list-1"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Petrophysics \u2013 The SPWLA Journal of Formation Evaluation and Reservoir Description","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W4400058898","https://openalex.org/W4402974599","https://openalex.org/W2004625510","https://openalex.org/W2033341353","https://openalex.org/W4409606057","https://openalex.org/W4414880609","https://openalex.org/W4399186471","https://openalex.org/W3138146364","https://openalex.org/W2079035152","https://openalex.org/W4401551496"],"abstract_inverted_index":{"The":[0],"understanding":[1],"of":[2,80,86,94,103,159],"fluid":[3,64,120,172],"phases":[4,108],"in":[5,109,152,162,193],"reservoirs":[6],"poses":[7],"significant":[8],"challenges,":[9],"particularly":[10],"when":[11],"dealing":[12],"with":[13,174],"depletion,":[14],"moving":[15],"contacts,":[16],"gas":[17,62,96,107,139],"injection,":[18],"or":[19],"any":[20],"physical":[21],"phenomenon.":[22],"Such":[23],"conditions":[24],"can":[25,37],"complicate":[26],"conventional":[27,98],"petrophysical":[28,67],"evaluations,":[29],"and":[30,33,46,56,66,97,106,133,147,196],"neutron-density":[31],"separation":[32],"borehole":[34],"resistivity":[35],"responses":[36],"lead":[38],"to":[39,71,116,128,190],"ambiguous":[40],"interpretation.":[41,121],"To":[42],"address":[43],"these":[44],"complexities":[45],"make":[47],"informed":[48],"reservoir":[49,154],"development":[50],"decisions,":[51],"results":[52],"from":[53],"various":[54],"techniques":[55],"sources,":[57],"such":[58],"as":[59],"advanced":[60],"mud":[61,95,138],"analysis,":[63],"sampling,":[65],"data,":[68],"are":[69],"integrated":[70],"gain":[72],"additional":[73,187],"insights":[74],"while":[75],"drilling.":[76],"In":[77],"the":[78,92,101,110,130,137,163,175,180],"example":[79],"a":[81,123],"depleted":[82],"oil":[83,105],"field,":[84],"zones":[85],"interest":[87],"were":[88,155],"identified":[89],"based":[90],"on":[91],"analysis":[93,169],"logs.":[99],"However,":[100],"presence":[102],"both":[104],"transition":[111],"zone":[112],"made":[113],"it":[114],"difficult":[115],"get":[117],"an":[118],"accurate":[119],"Consequently,":[122],"sampling":[124,181],"tool":[125],"is":[126],"deployed":[127],"confirm":[129],"flowing":[131],"phase,":[132],"new":[134],"cutoffs":[135],"for":[136],"measurement":[140],"(as":[141],"per":[142],"Cely":[143],"et":[144,149],"al.,":[145,150],"2023":[146],"Bravo":[148],"2024b)":[151],"this":[153,184],"established,":[156],"allowing":[157],"calibration":[158],"subsequent":[160],"wells":[161],"same":[164],"field.":[165],"Post-well":[166],"pressure-volume-temperature":[167],"(PVT)":[168],"showed":[170],"consistent":[171],"properties":[173],"real-time":[176],"measurements":[177],"taken":[178],"by":[179],"tool.":[182],"Moreover,":[183],"paper":[185],"presents":[186],"cross-comparison":[188],"plots":[189],"reinforce":[191],"confidence":[192],"technology":[194],"adoption":[195],"its":[197],"added":[198],"value.":[199]},"counts_by_year":[],"updated_date":"2026-10-28T10:33:24.094632","created_date":"2026-02-07T00:00:00"}