{"id":"W2085048316","doi":"10.2118/105781-ms","title":"Self-Healing Cement—Novel Technology to Achieve Leak-Free Wells","year":2007,"lang":"en","type":"article","venue":"","topic":"Drilling and Well Engineering","field":"Engineering","cited_by":74,"is_retracted":false,"has_abstract":true,"ca_institutions":"Suncor Energy (Canada)","funders":"","keywords":"Wellhead; Casing; Petroleum engineering; Cement; Injection well; Seal (emblem); Clogging; Oil well; Leak; Geotechnical engineering; Environmental science; Geology; Pressure system; Forensic engineering; Engineering; Materials science; Environmental engineering; Mechanical engineering","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0002546197,0.0001852549,0.0001646706,0.0003590253,0.0000458578,0.00002185454,0.0002979454,0.0001459788,0.00005412747],"category_scores_gemma":[0.00002369632,0.0001934923,0.00003943315,0.0005092443,0.000008918853,0.00005733923,0.00008007105,0.0002168772,0.0002995848],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00009121219,"about_ca_system_score_gemma":0.00000615963,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00001327571,"about_ca_topic_score_gemma":0.00003430523,"domain_scores_codex":[0.998882,0.000001494963,0.0002526085,0.0001925448,0.0001338913,0.0005374938],"domain_scores_gemma":[0.9993812,0.0000364436,0.00001123876,0.0004067404,0.00002489704,0.0001395232],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"simulation_or_modeling","study_design_gemma":"not_applicable","study_design_scores_codex":[0.00000880915,0.00005115045,0.000217068,0.000143697,0.000100632,0.00001402776,0.0002707981,0.937768,0.03532253,0.01273009,0.00447412,0.008899114],"study_design_scores_gemma":[0.0011307,0.0001856628,0.0001958448,0.0001040306,0.0000373379,0.00003738706,0.0003643635,0.3549692,0.1310121,0.0007177099,0.5101689,0.001076802],"study_design_candidate":"simulation_or_modeling","study_design_consensus":null,"genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.02109257,0.0001738341,0.9143212,0.0003202876,0.0006924827,0.0001621115,0.000003227674,0.003315632,0.05991859],"genre_scores_gemma":[0.8792193,0.00003251152,0.1190485,0.0001628807,0.000212319,0.000008926054,0.000003097916,0.00008248869,0.00122999],"genre_candidate":"methods","genre_consensus":null,"teacher_disagreement_score":0.8581267,"threshold_uncertainty_score":0.7890385,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.005449855559306207,"score_gpt":0.2103886368039871,"score_spread":0.2049387812446809,"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."}}