{"id":"W2028418206","doi":"10.2118/120162-ms","title":"Numerical Simulation of Wellbore Dynamics During Underbalanced Perforation","year":2009,"lang":"en","type":"article","venue":"Latin American and Caribbean Petroleum Engineering Conference","topic":"Hydraulic Fracturing and Reservoir Analysis","field":"Engineering","cited_by":7,"is_retracted":false,"has_abstract":true,"ca_institutions":"Husky Energy (Canada)","funders":"","keywords":"Perforation; Underbalanced drilling; Casing; Geotechnical engineering; Geology; Petroleum engineering; Engineering; Drilling; Mechanical engineering; Punching","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":[0.0000517302,0.0002048883,0.0003420307,0.0001389576,0.00004727183,0.00003802879,0.0001075558,0.0000567288,0.00001445154],"category_scores_gemma":[0.00002655473,0.0002071313,0.00006609347,0.0002743553,0.00004787378,0.00009402006,0.00001196924,0.0002131046,0.000001771076],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00007567841,"about_ca_system_score_gemma":0.00001216171,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00005085528,"about_ca_topic_score_gemma":0.000009377656,"domain_scores_codex":[0.9990869,0.00001347929,0.0002733018,0.0001954308,0.0001805734,0.0002502752],"domain_scores_gemma":[0.9995314,0.00004622568,0.00006766603,0.0002055334,0.00004226929,0.0001068657],"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":[0.000007373416,0.00001157001,0.00132533,0.00006067246,0.0000330793,0.000002321114,0.000224401,0.9909401,0.002637377,0.000102447,0.000002624312,0.004652684],"study_design_scores_gemma":[0.0001841557,0.00006770326,0.05829181,0.00004109751,0.00002372828,0.000001917086,0.0001217882,0.9397537,0.001243346,0.00001764016,0.0000429961,0.0002101032],"study_design_candidate":"simulation_or_modeling","study_design_consensus":"simulation_or_modeling","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.7940977,0.00006942514,0.2044116,0.00008857798,0.00005108406,0.00004554498,0.000009027454,0.0002494779,0.0009775864],"genre_scores_gemma":[0.9990232,0.00006516356,0.0007477377,0.00001066287,0.00004896392,0.000003254714,0.0000278721,0.00002174702,0.00005141685],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2049255,"threshold_uncertainty_score":0.844657,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.004241114494578054,"score_gpt":0.1978649383883856,"score_spread":0.1936238238938076,"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."}}