{"id":"W2922067996","doi":"10.1016/j.egypro.2019.01.511","title":"The Effect of Triangular Protrusions on Geothermal Wellbore Heat Exchanger from Retrofitted Abandoned Oil Wells","year":2019,"lang":"en","type":"article","venue":"Energy Procedia","topic":"Heat Transfer and Optimization","field":"Engineering","cited_by":7,"is_retracted":false,"has_abstract":true,"ca_institutions":"McGill University","funders":"Yayasan UTP","keywords":"Petroleum engineering; Geothermal energy; Geothermal gradient; Pressure drop; Heat transfer; Drilling; Wellbore; Heat exchanger; Volumetric flow rate; Flow (mathematics); Engineering; Geology; Mechanics; Mechanical engineering","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0001234996,0.0001735106,0.0002225312,0.00003539857,0.0000608866,0.00001806567,0.0001283356,0.0001259165,0.0002188339],"category_scores_gemma":[0.00002418153,0.0001160412,0.00008182819,0.0001784032,0.00002153501,0.00006070182,0.00001051678,0.000118021,0.00004290308],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00003020031,"about_ca_system_score_gemma":0.00001438169,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0001075019,"about_ca_topic_score_gemma":0.00002261759,"domain_scores_codex":[0.9991239,0.00005716127,0.0001962203,0.0001682523,0.0001916842,0.0002627387],"domain_scores_gemma":[0.9994366,0.0001958908,0.00001124564,0.0002635624,0.0000239841,0.00006876518],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"simulation_or_modeling","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.003079126,0.0001492693,0.0210337,0.00101537,0.0008314174,0.00002118212,0.003233896,0.5113019,0.3402187,0.002089235,0.006118922,0.1109074],"study_design_scores_gemma":[0.00565041,0.0007296898,0.008450906,0.000284097,0.00009153935,0.000001592444,0.00003445576,0.1080484,0.8394244,0.00004632922,0.03669365,0.0005445843],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.986203,0.0007020354,0.0008251452,0.00009462178,0.0005387279,0.0002396057,0.00002778599,0.0001915313,0.01117753],"genre_scores_gemma":[0.9983322,0.0003775632,0.00005605009,0.00004866521,0.0001898136,0.00009298549,0.00006441536,0.00005256675,0.000785767],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.4992057,"threshold_uncertainty_score":0.4732024,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.003069314680095078,"score_gpt":0.1767567675353512,"score_spread":0.1736874528552561,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}