{"id":"https://openalex.org/A5077552887","orcid":null,"observed_orcids":[],"display_name":"Christie Usun Ngau","raw_author_names":["Christie Usun Ngau"],"full_name":"Christie Usun Ngau","works_count":3,"cited_by_count":20,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":3,"i10_index":0},"ids":{"openalex":"https://openalex.org/A5077552887","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I182023848","ror":"https://ror.org/02tc7rm90","display_name":"Petronas (Malaysia)","country_code":"MY","type":"company","lineage":["https://openalex.org/I182023848"]},"years":[2012]},{"institution":{"id":"https://openalex.org/I4210137549","ror":"https://ror.org/03s918289","display_name":"Halliburton (United States)","country_code":"US","type":"company","lineage":["https://openalex.org/I4210137549"]},"years":[2022]}],"last_known_institutions":[{"id":"https://openalex.org/I4210137549","ror":"https://ror.org/03s918289","display_name":"Halliburton (United States)","country_code":"US","type":"company","lineage":["https://openalex.org/I4210137549"]}],"topics":[{"id":"https://openalex.org/T10892","display_name":"Drilling and Well Engineering","count":3,"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/T13925","display_name":"Offshore Engineering and Technologies","count":2,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean Engineering"},"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/T10399","display_name":"Hydrocarbon exploration and reservoir analysis","count":1,"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/T11302","display_name":"CO2 Sequestration and Geologic Interactions","count":1,"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/T13050","display_name":"Oil and Gas Production Techniques","count":1,"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"}}],"topic_share":[{"id":"https://openalex.org/T10892","display_name":"Drilling and Well Engineering","value":1.61e-05,"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/T13050","display_name":"Oil and Gas Production Techniques","value":1.22e-05,"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/T13925","display_name":"Offshore Engineering and Technologies","value":1.15e-05,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean Engineering"},"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","value":8e-06,"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/T13923","display_name":"Nuclear and radioactivity studies","value":2.6e-06,"subfield":{"id":"https://openalex.org/subfields/2213","display_name":"Safety, Risk, Reliability and Quality"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"30399818","wikidata":"https://www.wikidata.org/wiki/Q5048830","display_name":"Casing","score":0.9402329921722412},{"id":"25197100","wikidata":"https://www.wikidata.org/wiki/Q890886","display_name":"Drilling","score":0.8932368755340576},{"id":"113740612","wikidata":"https://www.wikidata.org/wiki/Q1845437","display_name":"Natural gas field","score":0.4967356324195862},{"id":"127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","score":0.4375608563423157},{"id":"127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","score":0.4033033549785614}],"counts_by_year":[{"year":2012,"works_count":2,"oa_works_count":0,"cited_by_count":1},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2022,"works_count":1,"oa_works_count":0,"cited_by_count":2},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":2}],"display_name_alternatives":["Christie Usun Ngau"],"block_key":"c ngau","works_api_url":"https://api.openalex.org/works?filter=author.id:A5077552887","awards_count":0,"updated_date":"2026-10-27T12:30:23","created_date":"2016-06-24T00:00:00"}