{"id":"W1972015106","doi":"10.5539/mas.v5n3p15","title":"Theory and Application of Buoyancy in Wells","year":2011,"lang":"en","type":"article","venue":"Modern Applied Science","topic":"Drilling and Well Engineering","field":"Engineering","cited_by":15,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Buoyancy; Drill string; Drag; Wellhead; Mechanics; Piston (optics); Torque; Drill pipe; Hamilton's principle; Drill; Engineering; Physics; Classical mechanics; Mechanical engineering; Thermodynamics","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":true,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0004061091,0.0007245568,0.0006021236,0.001189193,0.0006755833,0.0009314274,0.001184517,0.001282519,0.003145561],"category_scores_gemma":[0.0008801965,0.0004040762,0.0007684745,0.000783029,0.002225735,0.001874771,0.001494294,0.001126368,0.0006565177],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0008920821,"about_ca_system_score_gemma":0.0006415607,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.003673975,"about_ca_topic_score_gemma":0.001178441,"domain_scores_codex":[0.9996524,0.00008006908,0.00001839458,0.00005340791,0.0001555102,0.00004028973],"domain_scores_gemma":[0.9998258,0.00005897379,0.00002539658,0.00002252011,0.00005003585,0.00001735972],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.00001107689,0.000008365997,0.0001864623,0.0001132233,0.000007661622,0.000190264,0.0001302277,0.04655915,0.003184906,0.9335942,0.001447445,0.01456703],"study_design_scores_gemma":[0.00001622739,0.00007808031,0.0003482315,0.0000670813,0.00001158424,0.0003756464,0.00009148923,0.2902671,0.002645246,0.662371,0.04367445,0.00005380899],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.0267155,0.00873887,0.8658202,0.002016198,0.0008168985,0.00008397379,0.0001918057,0.0003842454,0.09523235],"genre_scores_gemma":[0.8444062,0.01072379,0.09730174,0.0007879396,0.0006565503,0.0002566842,0.000191979,0.0002323471,0.04544272],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.003673975,"threshold_uncertainty_score":0.0105229,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.006854738470453159,"score_gpt":0.1801397069454562,"score_spread":0.173284968475003,"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."}}