{"id":"W1975903433","doi":"10.2118/74447-ms","title":"Coupled Modeling of Borehole Instability and Multiphase Flow for Underbalanced Drilling","year":2002,"lang":"en","type":"article","venue":"","topic":"Drilling and Well Engineering","field":"Engineering","cited_by":12,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Borehole; Underbalanced drilling; Lost circulation; Drilling; Geology; Instability; Drill pipe; Hydraulics; Petroleum engineering; Drilling fluid; Geotechnical engineering; Pore water pressure; Mechanics; Engineering; Mechanical engineering","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0001020042,0.0001184542,0.0001871684,0.00004670088,0.00003234482,0.00001281394,0.00004860272,0.00005624079,0.00001652998],"category_scores_gemma":[0.00003413742,0.0001175836,0.00004503076,0.00007401602,0.00001506867,0.00007886516,0.000009280989,0.00006527587,0.000001136062],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00002349706,"about_ca_system_score_gemma":0.00000190485,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00001234557,"about_ca_topic_score_gemma":0.000007041534,"domain_scores_codex":[0.9993895,0.000002725623,0.0002195534,0.0001344729,0.00006606734,0.000187701],"domain_scores_gemma":[0.9996819,0.00006870006,0.00001171051,0.0001430733,0.00003412518,0.00006049536],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"simulation_or_modeling","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.000003215274,0.00001256877,0.00006459479,0.0001699348,0.00001633124,1.923854e-7,0.0001784887,0.9935051,0.003925539,0.00009779515,0.00001586444,0.002010403],"study_design_scores_gemma":[0.0006306987,0.00001592756,0.000008212785,0.00003035781,0.000009290584,8.077927e-7,0.00004163856,0.9969507,0.00193897,0.0001370082,0.00009846255,0.0001379235],"study_design_candidate":"simulation_or_modeling","study_design_consensus":"simulation_or_modeling","genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.2063507,0.0007718846,0.7916865,0.000009796884,0.0001114009,0.000136305,0.000008496952,0.0002532674,0.0006716325],"genre_scores_gemma":[0.9419583,0.0001884617,0.05773952,0.000006377537,0.00003533213,0.00001227651,0.000004510489,0.00002745318,0.00002776575],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.7356076,"threshold_uncertainty_score":0.4794919,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02086518703641141,"score_gpt":0.2019904655718283,"score_spread":0.1811252785354169,"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."}}