{"id":"https://openalex.org/W2065675145","doi":"https://doi.org/10.2118/142831-ms","title":"Use of the Near-Balance Drilling Technology Enables an Operator to Drill Successfully the Deepest Exploratory Well in Pakistan: Case History","display_name":"Use of the Near-Balance Drilling Technology Enables an Operator to Drill Successfully the Deepest Exploratory Well in Pakistan: Case History","publication_year":2011,"publication_date":"2011-10-30","ids":{"openalex":"https://openalex.org/W2065675145","doi":"https://doi.org/10.2118/142831-ms","mag":"2065675145"},"language":"en","primary_location":{"id":"doi:10.2118/142831-ms","doi":"https://doi.org/10.2118/142831-ms","is_oa":false,"landing_page_url":"https://doi.org/10.2118/142831-ms","pdf_url":null,"source":{"id":"https://openalex.org/S4306530599","display_name":"SPE Annual Technical Conference and Exhibition","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"SPE Annual Technical Conference and Exhibition","raw_type":"proceedings-article"},"volume":null,"type":"conference-paper","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":null,"display_name":"Francesco Crea","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Francesco Crea","raw_affiliation_strings":["ENI Pakistan Limited"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"ENI Pakistan Limited","institution_ids":[]}]},{"author_position":"middle","author":{"id":null,"display_name":"Asad Mehmood","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210095894","display_name":"Weatherford (Norway)","ror":"https://ror.org/00r2mkt64","country_code":"NO","type":"company","lineage":["https://openalex.org/I197773855","https://openalex.org/I4210095894"]},{"id":"https://openalex.org/I4210122222","display_name":"Weatherford (United Kingdom)","ror":"https://ror.org/020h5rq76","country_code":"GB","type":"company","lineage":["https://openalex.org/I197773855","https://openalex.org/I4210122222"]},{"id":"https://openalex.org/I4210136545","display_name":"Weatherford (United States)","ror":"https://ror.org/03td4yf75","country_code":"US","type":"company","lineage":["https://openalex.org/I197773855","https://openalex.org/I4210136545"]}],"countries":["GB","NO","US"],"is_corresponding":false,"raw_author_name":"Asad Mehmood","raw_affiliation_strings":["Weatherford International"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Weatherford International","institution_ids":["https://openalex.org/I4210095894","https://openalex.org/I4210122222","https://openalex.org/I4210136545"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032506376","display_name":"Keith Moyse","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210095894","display_name":"Weatherford (Norway)","ror":"https://ror.org/00r2mkt64","country_code":"NO","type":"company","lineage":["https://openalex.org/I197773855","https://openalex.org/I4210095894"]},{"id":"https://openalex.org/I4210122222","display_name":"Weatherford (United Kingdom)","ror":"https://ror.org/020h5rq76","country_code":"GB","type":"company","lineage":["https://openalex.org/I197773855","https://openalex.org/I4210122222"]},{"id":"https://openalex.org/I4210136545","display_name":"Weatherford (United States)","ror":"https://ror.org/03td4yf75","country_code":"US","type":"company","lineage":["https://openalex.org/I197773855","https://openalex.org/I4210136545"]}],"countries":["GB","NO","US"],"is_corresponding":false,"raw_author_name":"Keith Moyse","raw_affiliation_strings":["Weatherford International"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Weatherford International","institution_ids":["https://openalex.org/I4210095894","https://openalex.org/I4210122222","https://openalex.org/I4210136545"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Sherif saber","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210095894","display_name":"Weatherford (Norway)","ror":"https://ror.org/00r2mkt64","country_code":"NO","type":"company","lineage":["https://openalex.org/I197773855","https://openalex.org/I4210095894"]},{"id":"https://openalex.org/I4210122222","display_name":"Weatherford (United Kingdom)","ror":"https://ror.org/020h5rq76","country_code":"GB","type":"company","lineage":["https://openalex.org/I197773855","https://openalex.org/I4210122222"]},{"id":"https://openalex.org/I4210136545","display_name":"Weatherford (United States)","ror":"https://ror.org/03td4yf75","country_code":"US","type":"company","lineage":["https://openalex.org/I197773855","https://openalex.org/I4210136545"]}],"countries":["GB","NO","US"],"is_corresponding":false,"raw_author_name":"Sherif saber","raw_affiliation_strings":["Weatherford International"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Weatherford International","institution_ids":["https://openalex.org/I4210095894","https://openalex.org/I4210122222","https://openalex.org/I4210136545"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110023601","display_name":"Fabian Torres","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210095894","display_name":"Weatherford (Norway)","ror":"https://ror.org/00r2mkt64","country_code":"NO","type":"company","lineage":["https://openalex.org/I197773855","https://openalex.org/I4210095894"]},{"id":"https://openalex.org/I4210122222","display_name":"Weatherford (United Kingdom)","ror":"https://ror.org/020h5rq76","country_code":"GB","type":"company","lineage":["https://openalex.org/I197773855","https://openalex.org/I4210122222"]},{"id":"https://openalex.org/I4210136545","display_name":"Weatherford (United States)","ror":"https://ror.org/03td4yf75","country_code":"US","type":"company","lineage":["https://openalex.org/I197773855","https://openalex.org/I4210136545"]}],"countries":["GB","NO","US"],"is_corresponding":false,"raw_author_name":"Fabian Torres","raw_affiliation_strings":["Weatherford International"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Weatherford International","institution_ids":["https://openalex.org/I4210095894","https://openalex.org/I4210122222","https://openalex.org/I4210136545"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5088273071","display_name":"Maurizio Arnone","orcid":"https://orcid.org/0000-0002-0948-9346","observed_orcids":["https://orcid.org/0000-0002-0948-9346"]},"institutions":[{"id":"https://openalex.org/I4210095894","display_name":"Weatherford (Norway)","ror":"https://ror.org/00r2mkt64","country_code":"NO","type":"company","lineage":["https://openalex.org/I197773855","https://openalex.org/I4210095894"]},{"id":"https://openalex.org/I4210122222","display_name":"Weatherford (United Kingdom)","ror":"https://ror.org/020h5rq76","country_code":"GB","type":"company","lineage":["https://openalex.org/I197773855","https://openalex.org/I4210122222"]},{"id":"https://openalex.org/I4210136545","display_name":"Weatherford (United States)","ror":"https://ror.org/03td4yf75","country_code":"US","type":"company","lineage":["https://openalex.org/I197773855","https://openalex.org/I4210136545"]}],"countries":["GB","NO","US"],"is_corresponding":false,"raw_author_name":"Maurizio Arnone","raw_affiliation_strings":["Weatherford International"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Weatherford International","institution_ids":["https://openalex.org/I4210095894","https://openalex.org/I4210122222","https://openalex.org/I4210136545"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":3,"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":0.21396283,"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/T10892","display_name":"Drilling and Well Engineering","score":0.9994999766349792,"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"}},"topics":[{"id":"https://openalex.org/T10892","display_name":"Drilling and Well Engineering","score":0.9994999766349792,"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/T10399","display_name":"Hydrocarbon exploration and reservoir analysis","score":0.00019999999494757503,"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/T10188","display_name":"Advanced machining processes and optimization","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/managed-pressure-drilling","display_name":"managed pressure drilling","score":0.996999979019165},{"id":"https://openalex.org/keywords/well-control","display_name":"well control","score":0.36800000071525574},{"id":"https://openalex.org/keywords/annular-pressure-loss","display_name":"annular pressure loss","score":0.722000002861023}],"concepts":[{"id":"https://openalex.org/C25197100","wikidata":"https://www.wikidata.org/wiki/Q890886","display_name":"Drilling","level":2,"score":0.8800973892211914},{"id":"https://openalex.org/C30399818","wikidata":"https://www.wikidata.org/wiki/Q5048830","display_name":"Casing","level":2,"score":0.7111882567405701},{"id":"https://openalex.org/C173736775","wikidata":"https://www.wikidata.org/wiki/Q58964","display_name":"Drill","level":2,"score":0.7009917497634888},{"id":"https://openalex.org/C141813653","wikidata":"https://www.wikidata.org/wiki/Q7883440","display_name":"Underbalanced drilling","level":4,"score":0.5572519898414612},{"id":"https://openalex.org/C78762247","wikidata":"https://www.wikidata.org/wiki/Q1273174","display_name":"Petroleum engineering","level":1,"score":0.5323857069015503},{"id":"https://openalex.org/C2779439521","wikidata":"https://www.wikidata.org/wiki/Q17146786","display_name":"Lost circulation","level":4,"score":0.5229423642158508},{"id":"https://openalex.org/C2992960596","wikidata":"https://www.wikidata.org/wiki/Q502102","display_name":"Drill hole","level":3,"score":0.5061618685722351},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.5000641345977783},{"id":"https://openalex.org/C152068911","wikidata":"https://www.wikidata.org/wiki/Q890914","display_name":"Drilling fluid","level":3,"score":0.4701808989048004},{"id":"https://openalex.org/C2776088076","wikidata":"https://www.wikidata.org/wiki/Q4199385","display_name":"Drill pipe","level":3,"score":0.4652693271636963},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.384174108505249},{"id":"https://openalex.org/C16674752","wikidata":"https://www.wikidata.org/wiki/Q1370637","display_name":"Mining engineering","level":1,"score":0.37603849172592163},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3333936333656311},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.31609809398651123}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.2118/142831-ms","doi":"https://doi.org/10.2118/142831-ms","is_oa":false,"landing_page_url":"https://doi.org/10.2118/142831-ms","pdf_url":null,"source":{"id":"https://openalex.org/S4306530599","display_name":"SPE Annual Technical Conference and Exhibition","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"SPE Annual Technical Conference and Exhibition","raw_type":"proceedings-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":8,"referenced_works":["https://openalex.org/W1978561788","https://openalex.org/W2031960358","https://openalex.org/W2033441732","https://openalex.org/W2084091290","https://openalex.org/W2116982362","https://openalex.org/W4249397168","https://openalex.org/W4302344771","https://openalex.org/W6677892828"],"related_works":["https://openalex.org/W2024542068","https://openalex.org/W2055409022","https://openalex.org/W2369942957","https://openalex.org/W4212814073","https://openalex.org/W2623885155","https://openalex.org/W2358490798","https://openalex.org/W1966486072","https://openalex.org/W2049451299","https://openalex.org/W4242473840","https://openalex.org/W2900387056"],"abstract_inverted_index":{"Abstract":[0],"The":[1,115,280],"correct":[2],"selection":[3],"and":[4,56,77,98,113,129,153,274,298],"application":[5,39],"of":[6,20,85,109,177,180,190,211,217,221],"the":[7,15,37,52,73,107,148,161,166,174,187,191,200,203,208,214,218,222,230,237,253,258,267,278,287,296,299,302],"innovative":[8],"near":[9,167],"balance":[10,168],"drilling":[11,83,127,169,183,212,247,306],"(e-nbd)":[12,171],"technology":[13,172,189],"combining":[14,173],"automatic":[16,175,290],"surface":[17,178],"backpressure":[18,179],"control":[19,176,295],"Managed":[21],"Pressure":[22,242],"Drilling":[23],"(MPD)":[24,184],"with":[25,125,131,186,261],"continuous":[26,192],"fluid":[27],"circulation":[28],"method":[29],"(e-cd)":[30,195],"has":[31],"demonstrated":[32],"a":[33,48,60,66,262],"key":[34],"impact":[35],"during":[36],"first":[38,141,226],"in":[40,72,99,118,160,202,277,292],"country.":[41],"In":[42],"1998":[43],"an":[44],"operator":[45,144],"company":[46],"drilled":[47],"well":[49,86,256,303],"targeted":[50,231],"to":[51,81,105,146,197,213,294],"Lower":[53,149,204],"Cretaceous":[54],"Goru":[55,150,205],"Sembar":[57],"Sands":[58],"as":[59],"primary":[61],"objectives":[62],"but":[63],"it":[64],"encountered":[65],"high":[67,110,309],"pressured":[68],"sequence":[69,220],"(continuous":[70],"increase":[71],"background":[74,111],"gas/formation":[75],"pressure)":[76],"was":[78,102,244],"not":[79,103,123],"possible":[80,104],"continue":[82],"because":[84],"construction":[87],"limitations":[88],"(at":[89],"3500m":[90],"MD":[91],"all":[92],"available":[93,133],"casing":[94],"strings":[95],"were":[96,121,284],"consumed":[97],"6\"":[100],"hole":[101,234,250,264],"manage":[106],"coexistence":[108],"gas":[112,311],"losses).":[114],"objective":[116],"formations":[117],"this":[119,140],"field":[120],"considered":[122],"reachable":[124],"conventional":[126],"practices":[128],"even":[130],"technologies":[132],"at":[134],"that":[135],"time.":[136],"Eleven":[137],"years":[138],"after":[139],"attempt,":[142],"another":[143],"decided":[145],"target":[147,260],"(3500m":[151],"MD)":[152],"Chiltan":[154,223],"Formations":[155],"(4900m":[156],"MD),":[157],"never":[158],"explored":[159],"Kirthar":[162],"Fold":[163],"Belt":[164],"using":[165],"technique":[170,243],"managed":[181],"pressure":[182,275,310],"together":[185],"proprietary":[188],"circulating":[193],"valves":[194],"achieving":[196],"drill":[198],"through":[199,286],"intervals":[201],"formation,":[206],"pushing":[207],"technical":[209],"limit":[210],"deeper":[215],"horizon":[216],"carbonates":[219],"formation":[224],"by":[225,269],"time":[227],"ever.":[228],"Throughout":[229],"two":[232],"last":[233],"sections":[235],"for":[236],"MPD":[238,288],"technology,":[239],"Constant":[240],"Annular":[241],"successfully":[245],"applied":[246],"45%":[248],"more":[249],"length":[251],"than":[252,266],"previous":[254],"reference":[255],"reaching":[257],"planned":[259],"bigger":[263],"size":[265],"offset,":[268],"precisely":[270],"monitoring":[271],"micro":[272],"influxes":[273],"losses":[276],"annulus.":[279],"returns":[281],"from":[282,301],"annulus":[283],"taken":[285],"full":[289],"system":[291],"order":[293],"ECD":[297],"flow":[300,304],"once":[305],"into":[307],"expected":[308],"formations.":[312]},"counts_by_year":[],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}
