{"id":"https://openalex.org/W2996790450","doi":"https://doi.org/10.4236/ojg.2019.913100","title":"Reservoir Evaluation and Volumetric Analysis of Rancho Field, Niger Delta, Using Well Log and 3D Seismic Data","display_name":"Reservoir Evaluation and Volumetric Analysis of Rancho Field, Niger Delta, Using Well Log and 3D Seismic Data","publication_year":2019,"publication_date":"2019-01-01","ids":{"openalex":"https://openalex.org/W2996790450","doi":"https://doi.org/10.4236/ojg.2019.913100","mag":"2996790450"},"language":"en","primary_location":{"id":"doi:10.4236/ojg.2019.913100","doi":"https://doi.org/10.4236/ojg.2019.913100","is_oa":true,"landing_page_url":"https://doi.org/10.4236/ojg.2019.913100","pdf_url":"https://content.scirp.org/pdf/ojg_2019122611284456.pdf","source":{"id":"https://openalex.org/S2764901351","display_name":"Open Journal of Geology","issn_l":"2161-7570","issn":["2161-7570","2161-7589"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310320480","host_organization_name":"Scientific Research Publishing","host_organization_lineage":["https://openalex.org/P4310320480"],"host_organization_lineage_names":["Scientific Research Publishing"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Open Journal of Geology","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://content.scirp.org/pdf/ojg_2019122611284456.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5064846722","display_name":"Ayodele Olumuyiwa Owolabi","orcid":"https://orcid.org/0000-0003-3811-4487","observed_orcids":["https://orcid.org/0000-0003-3811-4487"]},"institutions":[{"id":"https://openalex.org/I180664298","display_name":"Federal University of Technology","ror":"https://ror.org/01pvx8v81","country_code":"NG","type":"education","lineage":["https://openalex.org/I180664298"]}],"countries":["NG"],"is_corresponding":false,"raw_author_name":"A. O. Owolabi","raw_affiliation_strings":["Department of Mining Engineering, Federal University of Technology, Akure, Nigeria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mining Engineering, Federal University of Technology, Akure, Nigeria","institution_ids":["https://openalex.org/I180664298"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025411204","display_name":"Benjamin Odey Omang","orcid":"https://orcid.org/0000-0001-9196-3109","observed_orcids":["https://orcid.org/0000-0001-9196-3109"]},"institutions":[{"id":"https://openalex.org/I3970730","display_name":"University of Calabar","ror":"https://ror.org/05qderh61","country_code":"NG","type":"education","lineage":["https://openalex.org/I3970730"]}],"countries":["NG"],"is_corresponding":false,"raw_author_name":"B. O. Omang","raw_affiliation_strings":["Department of Geology, University of Calabar, Calabar, Nigeria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Geology, University of Calabar, Calabar, Nigeria","institution_ids":["https://openalex.org/I3970730"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016848925","display_name":"Oluwaseye Peter Oyetade","orcid":"https://orcid.org/0000-0002-0241-3111","observed_orcids":["https://orcid.org/0000-0002-0241-3111"]},"institutions":[{"id":"https://openalex.org/I3970730","display_name":"University of Calabar","ror":"https://ror.org/05qderh61","country_code":"NG","type":"education","lineage":["https://openalex.org/I3970730"]}],"countries":["NG"],"is_corresponding":true,"raw_author_name":"O. P. Oyetade","raw_affiliation_strings":["Department of Geology, University of Calabar, Calabar, Nigeria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Geology, University of Calabar, Calabar, Nigeria","institution_ids":["https://openalex.org/I3970730"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5088533871","display_name":"O. B. Akindele","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I180664298","display_name":"Federal University of Technology","ror":"https://ror.org/01pvx8v81","country_code":"NG","type":"education","lineage":["https://openalex.org/I180664298"]}],"countries":["NG"],"is_corresponding":false,"raw_author_name":"O. B. Akindele","raw_affiliation_strings":["Department of Mining Engineering, Federal University of Technology, Akure, Nigeria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mining Engineering, Federal University of Technology, Akure, Nigeria","institution_ids":["https://openalex.org/I180664298"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5016848925"],"corresponding_institution_ids":["https://openalex.org/I3970730"],"apc_list":null,"apc_paid":null,"fwci":0.5882,"has_fulltext":true,"cited_by_count":9,"citation_normalized_percentile":{"value":0.60875588,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"09","issue":"13","first_page":"974","last_page":"987"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10399","display_name":"Hydrocarbon exploration and reservoir analysis","score":0.9570000171661377,"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":0.9570000171661377,"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/T13067","display_name":"Geological Modeling and Analysis","score":0.016200000420212746,"subfield":{"id":"https://openalex.org/subfields/1906","display_name":"Geochemistry and Petrology"},"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/T13193","display_name":"Geological Studies and Exploration","score":0.01590000092983246,"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/reservoir-evaluation","display_name":"reservoir evaluation","score":0.8659999966621399},{"id":"https://openalex.org/keywords/volumetric-analysis","display_name":"volumetric analysis","score":0.9819999933242798},{"id":"https://openalex.org/keywords/niger-delta","display_name":"Niger Delta","score":0.9589999914169312},{"id":"https://openalex.org/keywords/petrophysical-properties","display_name":"petrophysical properties","score":0.7799999713897705},{"id":"https://openalex.org/keywords/effective-porosity","display_name":"effective porosity","score":0.7689999938011169},{"id":"https://openalex.org/keywords/permeability","display_name":"permeability","score":0.7279999852180481},{"id":"https://openalex.org/keywords/hydrocarbon-saturation","display_name":"hydrocarbon saturation","score":0.8080000281333923},{"id":"https://openalex.org/keywords/fault-mapping","display_name":"fault mapping","score":0.5669999718666077},{"id":"https://openalex.org/keywords/gross-rock-volume","display_name":"gross rock volume","score":0.9210000038146973},{"id":"https://openalex.org/keywords/well-log-interpretation","display_name":"well log interpretation","score":0.5920000076293945},{"id":"https://openalex.org/keywords/3d-seismic-interpretation","display_name":"3D seismic interpretation","score":0.7799999713897705}],"concepts":[{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.8576241731643677},{"id":"https://openalex.org/C46293882","wikidata":"https://www.wikidata.org/wiki/Q2080707","display_name":"Petrophysics","level":3,"score":0.8181179165840149},{"id":"https://openalex.org/C153127940","wikidata":"https://www.wikidata.org/wiki/Q221378","display_name":"Oil shale","level":2,"score":0.7038228511810303},{"id":"https://openalex.org/C122792734","wikidata":"https://www.wikidata.org/wiki/Q6538759","display_name":"Lithology","level":2,"score":0.6526404023170471},{"id":"https://openalex.org/C175181221","wikidata":"https://www.wikidata.org/wiki/Q1650350","display_name":"Prospecting","level":2,"score":0.5973060131072998},{"id":"https://openalex.org/C35817400","wikidata":"https://www.wikidata.org/wiki/Q2383566","display_name":"Well logging","level":2,"score":0.5203751921653748},{"id":"https://openalex.org/C5072461","wikidata":"https://www.wikidata.org/wiki/Q49506","display_name":"Delta","level":2,"score":0.5152102112770081},{"id":"https://openalex.org/C146588470","wikidata":"https://www.wikidata.org/wiki/Q742139","display_name":"Facies","level":3,"score":0.5023770332336426},{"id":"https://openalex.org/C150560799","wikidata":"https://www.wikidata.org/wiki/Q502102","display_name":"Borehole","level":2,"score":0.4377887547016144},{"id":"https://openalex.org/C5900021","wikidata":"https://www.wikidata.org/wiki/Q163082","display_name":"Petrology","level":1,"score":0.41988837718963623},{"id":"https://openalex.org/C199289684","wikidata":"https://www.wikidata.org/wiki/Q83353","display_name":"Mineralogy","level":1,"score":0.35531777143478394},{"id":"https://openalex.org/C187320778","wikidata":"https://www.wikidata.org/wiki/Q1349130","display_name":"Geotechnical engineering","level":1,"score":0.3485385775566101},{"id":"https://openalex.org/C16674752","wikidata":"https://www.wikidata.org/wiki/Q1370637","display_name":"Mining engineering","level":1,"score":0.33681976795196533},{"id":"https://openalex.org/C114793014","wikidata":"https://www.wikidata.org/wiki/Q52109","display_name":"Geomorphology","level":1,"score":0.27885764837265015},{"id":"https://openalex.org/C78762247","wikidata":"https://www.wikidata.org/wiki/Q1273174","display_name":"Petroleum engineering","level":1,"score":0.23739910125732422},{"id":"https://openalex.org/C6648577","wikidata":"https://www.wikidata.org/wiki/Q622669","display_name":"Porosity","level":2,"score":0.17090559005737305},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.09442278742790222},{"id":"https://openalex.org/C109007969","wikidata":"https://www.wikidata.org/wiki/Q749565","display_name":"Structural basin","level":2,"score":0.07568973302841187},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.4236/ojg.2019.913100","doi":"https://doi.org/10.4236/ojg.2019.913100","is_oa":true,"landing_page_url":"https://doi.org/10.4236/ojg.2019.913100","pdf_url":"https://content.scirp.org/pdf/ojg_2019122611284456.pdf","source":{"id":"https://openalex.org/S2764901351","display_name":"Open Journal of Geology","issn_l":"2161-7570","issn":["2161-7570","2161-7589"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310320480","host_organization_name":"Scientific Research Publishing","host_organization_lineage":["https://openalex.org/P4310320480"],"host_organization_lineage_names":["Scientific Research Publishing"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Open Journal of Geology","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.4236/ojg.2019.913100","doi":"https://doi.org/10.4236/ojg.2019.913100","is_oa":true,"landing_page_url":"https://doi.org/10.4236/ojg.2019.913100","pdf_url":"https://content.scirp.org/pdf/ojg_2019122611284456.pdf","source":{"id":"https://openalex.org/S2764901351","display_name":"Open Journal of Geology","issn_l":"2161-7570","issn":["2161-7570","2161-7589"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310320480","host_organization_name":"Scientific Research Publishing","host_organization_lineage":["https://openalex.org/P4310320480"],"host_organization_lineage_names":["Scientific Research Publishing"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Open Journal of Geology","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2996790450.pdf","grobid_xml":"https://content.openalex.org/works/W2996790450.grobid-xml"},"referenced_works_count":6,"referenced_works":["https://openalex.org/W1606949540","https://openalex.org/W2081619782","https://openalex.org/W2087452412","https://openalex.org/W2264382836","https://openalex.org/W2902606074","https://openalex.org/W2964497184"],"related_works":["https://openalex.org/W7202296474","https://openalex.org/W4320071525","https://openalex.org/W3003841969","https://openalex.org/W4401593403","https://openalex.org/W2344374571","https://openalex.org/W2901876047","https://openalex.org/W2623167095","https://openalex.org/W4411741009","https://openalex.org/W2790096927","https://openalex.org/W7099061906"],"abstract_inverted_index":{"Exploration":[0],"and":[1,25,37,80,127,155,176,203,268,285,314,337,351],"exploitation":[2],"for":[3,21,40,52,255],"hydrocarbon":[4,23,55,114,157,183,269],"are":[5,324],"associated":[6],"with":[7,214,223],"a":[8,290],"lot":[9],"of":[10,57,62,94,129,142,201,230,237,261,309,312,319,330,333,348],"complexities,":[11],"it":[12],"is":[13,30],"therefore":[14],"necessary":[15],"to":[16,68,123,258,326],"integrate":[17],"available":[18],"geologic":[19],"models":[20],"accurate":[22],"prospecting":[24],"risk":[26],"analysis.":[27],"This":[28],"study":[29,193,283],"aimed":[31],"at":[32],"determining":[33],"the":[34,44,54,58,95,106,132,140,151,162,170,192,217,227,231,238,245,256,282,286,331,341],"structural,":[35],"petrophysical":[36,135],"volumetric":[38,177,295],"parameters":[39,136],"reservoir":[41],"evaluation":[42],"within":[43,191,281],"Rancho":[45],"field.":[46,59],"3D":[47,152],"seismic":[48,153,171],"data":[49,154],"was":[50,100,109,120,179],"used":[51,101,110],"evaluating":[53],"potential":[56],"A":[60,117,186],"suite":[61,141],"well":[63,163,196,207],"logs":[64,71,164],"but":[65],"not":[66],"limited":[67],"gamma":[69],"ray":[70],"(GR),":[72],"deep":[73],"resistivity":[74,107],"log":[75,78,82,99,108,197],"(DRES),":[76],"neutron":[77],"(NPHI)":[79],"density":[81],"(RHOB)":[83],"from":[84,139,161,241,248,264,272],"four":[85],"(4)":[86],"wells":[87],"were":[88,137,148,165,174,189,279],"employed":[89],"in":[90,102,111,212,221,335],"characterising":[91],"dynamic":[92],"properties":[93],"reservoirs.":[96],"The":[97,195,234,294],"GR":[98],"lithology":[103],"identification":[104],"while":[105,216],"identifying":[112],"probable":[113],"bearing":[115,158],"sands.":[116],"correlation":[118],"exercise":[119],"carried":[121],"out":[122],"identify":[124],"lateral":[125],"continuity":[126],"discontinuity":[128],"facies":[130],"across":[131],"wells.":[133],"Thereafter":[134],"analysed":[138],"wire":[143],"line":[144],"logs.":[145],"Major":[146],"faults":[147,278],"mapped":[149,166,280],"on":[150,169],"identified":[156,190],"sand":[159,202,218],"tops":[160],"as":[167,206,208],"horizons":[168],"section,":[172],"maps":[173],"generated":[175],"analysis":[178,296],"done.":[180],"Nine":[181],"(9)":[182],"sands":[184,239,323],"(Sands":[185],"-":[187,243,250,253,266,274],"I)":[188],"area.":[194],"revealed":[198,289],"an":[199],"alternation":[200],"shale":[204,209,262],"layers":[205,210],"increased":[211],"thickness":[213,222],"depth,":[215],"bodies":[219],"reduced":[220],"depth":[224],"which":[225],"characterized":[226],"Abgada":[228],"Formation":[229],"Niger":[232],"Delta.":[233],"effective":[235],"porosities":[236],"range":[240,263],"21%":[242],"31%,":[244],"permeability":[246],"ranges":[247,271],"28%":[249],"44%,":[251],"70%":[252],"80%":[254],"net":[257],"gross,":[259],"volume":[260,332],"14%":[265],"40%":[267],"saturation":[270],"63%":[273],"82%.":[275],"Twelve":[276],"(12)":[277],"area":[284,338],"structural":[287],"styles":[288],"fault":[291],"assisted":[292],"closures.":[293],"showed":[297],"that":[298],"Sand":[299,315],"F":[300],"had":[301,317],"Stock":[302],"Tank":[303],"Oil":[304],"Initially":[305],"In":[306],"Place":[307],"(STOIIP)":[308],"5,050,000,000":[310],"bbls":[311],"oil":[313,334],"G":[316],"STOIIP":[318],"17,870,000,000":[320],"bbls,":[321],"these":[322],"proposed":[325],"be":[327],"developd":[328],"because":[329],"them":[336],"covered":[339],"by":[340],"reservoir,":[342],"calculated":[343],"Gross":[344],"Rock":[345],"Volume":[346],"(GRV)":[347],"29.5":[349],"km3":[350,353],"104.5":[352],"respectively.":[354]},"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":2}],"updated_date":"2026-10-30T12:39:25.321706","created_date":"2020-01-10T00:00:00"}
