{"id":"W1966357154","doi":"10.2118/157777-ms","title":"Paradigm Shift in Polycrystalline Diamond Bit Design for Canadian Heavy Oil Sands","year":2012,"lang":"en","type":"article","venue":"SPE Heavy Oil Conference Canada","topic":"Drilling and Well Engineering","field":"Engineering","cited_by":10,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Bit (key); Hammer; Diamond; Abrasive; Blade (archaeology); Mechanical engineering; Computer science; Engineering; Materials science; Composite material","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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0008961919,0.0003165796,0.0002335708,0.0007355018,0.000812278,0.001418237,0.001571997,0.0006556217,0.003866707],"category_scores_gemma":[0.000775255,0.000209149,0.0002006124,0.000839662,0.0006847493,0.0006534611,0.0005197493,0.0005321778,0.0006985093],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.006821983,"about_ca_system_score_gemma":0.006706652,"about_ca_topic_candidate":true,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.1361488,"about_ca_topic_score_gemma":0.3825964,"domain_scores_codex":[0.9989753,0.00006456977,0.00003693836,0.00009557282,0.0007046712,0.0001230491],"domain_scores_gemma":[0.998903,0.00005132044,0.00006532149,0.00007231534,0.0008209447,0.00008700231],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.0007654302,0.0001509083,0.01392157,0.0008937066,0.00004113578,0.001066473,0.001210521,0.02368589,0.5049588,0.04229268,0.01102033,0.3999926],"study_design_scores_gemma":[0.0002051731,0.002120286,0.03817817,0.0003222951,0.00009514976,0.002170527,0.002674665,0.05124367,0.4014524,0.006729624,0.4945952,0.0002128799],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.73586,0.003349535,0.1490202,0.003408299,0.0003343896,0.0007816475,0.001182623,0.001247899,0.1048154],"genre_scores_gemma":[0.8131921,0.001151609,0.1446124,0.000400539,0.00001831518,0.0001281499,0.0004900054,0.0001546556,0.03985217],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.8638512,"threshold_uncertainty_score":0.2707126,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02143720387121548,"score_gpt":0.2048899308069406,"score_spread":0.1834527269357251,"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."}}