{"id":"W2989797907","doi":"10.1190/int-2019-0061.1","title":"Diagenetic characteristics and quantitative evolution of porosity in tight gas sandstone reservoirs: A case study from the middle and lower Permian in the northwestern Ordos Basin, China","year":2019,"lang":"en","type":"article","venue":"Interpretation","topic":"Hydrocarbon exploration and reservoir analysis","field":"Engineering","cited_by":1,"is_retracted":false,"has_abstract":true,"ca_institutions":"Petro-Canada","funders":"Specialized Research Fund for the Doctoral Program of Higher Education of China","keywords":"Geology; Diagenesis; Authigenic; Cementation (geology); Petrography; Geochemistry; Calcite; Compaction; Volcanic rock; Carbonate; Mineralogy; Petrology; Volcano; Geomorphology; Cement","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":[0.0002601032,0.00009783022,0.0001672327,0.00009768138,0.00002961287,0.00004043457,0.00008050849,0.00003799396,0.00001126976],"category_scores_gemma":[0.00004219651,0.00006463381,0.00002354943,0.0002195254,0.00003643769,0.0001587426,0.00002400612,0.0001350317,0.000002958959],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00004034043,"about_ca_system_score_gemma":0.000009326177,"about_ca_topic_candidate":true,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.004677191,"about_ca_topic_score_gemma":0.03561115,"domain_scores_codex":[0.9991829,0.000202535,0.0002634531,0.0001421548,0.0001249992,0.00008390068],"domain_scores_gemma":[0.999548,0.000165869,0.00005635402,0.0001822449,0.00002855409,0.00001903221],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00008396481,0.0001214741,0.8426026,0.00004012288,0.00005106497,0.00008918132,0.1507295,0.004744379,0.0009205171,0.000009533771,0.000004323957,0.0006034015],"study_design_scores_gemma":[0.000385801,0.0001065478,0.6849698,0.00007481116,0.00003121987,0.00001111667,0.02092183,0.2933484,0.00003023133,0.00004461577,0.00000289173,0.00007264499],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9980617,0.0002948343,0.001036755,0.0001083509,0.00006079651,0.0003705944,0.0000177927,0.00001020532,0.00003893723],"genre_scores_gemma":[0.9998419,0.00004653578,0.00002773769,0.00002181964,0.000009615969,0.00002229944,0.00001508385,0.000009001446,0.000006022839],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2886041,"threshold_uncertainty_score":0.9819864,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01270151820139527,"score_gpt":0.2348110037531639,"score_spread":0.2221094855517686,"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."}}