{"id":"W2071805742","doi":"10.2136/vzj2007.0174","title":"Effects of Fractal Fracture Surface Roughness on Borehole Ballooning","year":2009,"lang":"en","type":"article","venue":"Vadose Zone Journal","topic":"Drilling and Well Engineering","field":"Engineering","cited_by":14,"is_retracted":false,"has_abstract":true,"ca_institutions":"Canadian Natural Resources; University of Alberta","funders":"","keywords":"Borehole; Geology; Fracture (geology); Mechanics; Lost circulation; Drilling fluid; Surface finish; Fractal dimension; Surface roughness; Geotechnical engineering; Ballooning; Fractal; Drilling; Materials science; Composite material; Physics; Mathematics","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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0003459042,0.0003312275,0.000371115,0.0002996883,0.0002712472,0.000503414,0.000282751,0.0005720914,0.0003239472],"category_scores_gemma":[0.00190307,0.0002035387,0.0006651477,0.0001514271,0.0006156804,0.0004004441,0.0003556188,0.0004350631,0.00003894277],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004924064,"about_ca_system_score_gemma":0.0002959763,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0065607,"about_ca_topic_score_gemma":0.00303368,"domain_scores_codex":[0.9998149,0.00003430301,0.000008752696,0.00002984925,0.00004523233,0.00006693836],"domain_scores_gemma":[0.998749,0.0007435146,0.0002231512,0.0001041393,0.0001051748,0.00007511552],"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":[0.0001900311,0.0000775838,0.01391781,0.00006147922,0.00004261499,0.0005379303,0.00010228,0.9170676,0.06136528,0.001378736,0.0001519515,0.005106688],"study_design_scores_gemma":[0.00001151838,0.0001339431,0.01329885,0.000006948828,0.0000235369,0.0001052107,0.00004765502,0.9789067,0.006869916,0.0004346384,0.0001280405,0.00003301222],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9892034,0.0001610824,0.009432426,0.00006382051,0.00001341,0.0000125905,0.00005303273,0.00007186393,0.0009884742],"genre_scores_gemma":[0.9995347,0.00003301113,0.0003427319,0.000003272416,0.000001332417,0.000001876103,0.000009507669,0.000003405709,0.00007019758],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.0065607,"threshold_uncertainty_score":0.01304507,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.003170697925425131,"score_gpt":0.1889953602795285,"score_spread":0.1858246623541034,"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."}}