{"id":"W2152678570","doi":"10.2118/114164-ms","title":"Rock Typing — Keys to Understanding Productivity in Tight Gas Sands","year":2008,"lang":"en","type":"article","venue":"","topic":"Hydrocarbon exploration and reservoir analysis","field":"Engineering","cited_by":150,"is_retracted":false,"has_abstract":true,"ca_institutions":"Apache (Canada)","funders":"","keywords":"Geology; Sedimentary depositional environment; Diagenesis; Permeability (electromagnetism); Sedimentary rock; Tight gas; Petrology; Texture (cosmology); Mineralogy; Geotechnical engineering; Hydraulic fracturing; Geochemistry; Geomorphology; Structural basin; Artificial intelligence; Computer science","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":[0.001285847,0.0004442594,0.0004880511,0.005405997,0.0008815654,0.004359935,0.0008862692,0.0005761434,0.002635018],"category_scores_gemma":[0.01068636,0.0003801889,0.0003741853,0.004110027,0.00156424,0.005289223,0.002474453,0.000573151,0.0007067793],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001222647,"about_ca_system_score_gemma":0.0006793497,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.02098695,"about_ca_topic_score_gemma":0.01865143,"domain_scores_codex":[0.9988729,0.0001933876,0.0001431353,0.0003173433,0.0002992233,0.0001739754],"domain_scores_gemma":[0.992262,0.003198337,0.002044148,0.0009480693,0.001262616,0.000284898],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001928409,0.0000687873,0.8425218,0.0001979451,0.00008043108,0.0002712904,0.006011141,0.01418155,0.007917099,0.009816747,0.0007413508,0.1179991],"study_design_scores_gemma":[0.0000160567,0.0001109868,0.8098351,0.0001607885,0.00007038908,0.0003794161,0.01516892,0.1056353,0.01460329,0.03815412,0.01574574,0.0001199373],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9169371,0.000330567,0.06676366,0.0003315883,0.0000134935,0.0001146154,0.002799742,0.0005885165,0.01212086],"genre_scores_gemma":[0.9804251,0.00008010317,0.0182908,0.00001473291,0.000007572939,0.00002660032,0.0004832922,0.00005491436,0.0006169117],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.02098695,"threshold_uncertainty_score":0.04172957,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.04196762106791538,"score_gpt":0.2298073743236639,"score_spread":0.1878397532557485,"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."}}