{"id":"W2087012706","doi":"10.3997/2214-4609.20145650","title":"Underbalanced Drilling (UBD) as a Reservoir Characterisation Tool to Test Tight Gas Plays: An Example from the Empty Quarter, Saudi Arabia","year":2010,"lang":"en","type":"article","venue":"Proceedings","topic":"Hydraulic Fracturing and Reservoir Analysis","field":"Engineering","cited_by":0,"is_retracted":false,"has_abstract":false,"ca_institutions":"","funders":"","keywords":"Underbalanced drilling; Tight gas; Petroleum engineering; Drilling; Quarter (Canadian coin); Geology; Engineering; Hydraulic fracturing; Drilling fluid; Mechanical engineering; History","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0004810977,0.0003847435,0.0004282397,0.0006300684,0.001070936,0.0008510842,0.0005160767,0.000700593,0.001328571],"category_scores_gemma":[0.0007713535,0.0002142259,0.0001987667,0.0007867301,0.0007051925,0.0004786699,0.0005232961,0.0003594992,0.0002563648],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0005273311,"about_ca_system_score_gemma":0.0006711576,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.02423186,"about_ca_topic_score_gemma":0.07310446,"domain_scores_codex":[0.9997436,0.00003676006,0.0000186666,0.00004475617,0.0001045242,0.00005163621],"domain_scores_gemma":[0.9995165,0.0001416771,0.00004350469,0.00005746766,0.0001921794,0.00004863265],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"observational","study_design_scores_codex":[0.00475568,0.0007795024,0.1646997,0.0006341572,0.0001023737,0.004631296,0.007109834,0.03371068,0.6664721,0.003446165,0.00233924,0.1113192],"study_design_scores_gemma":[0.0003010229,0.004916316,0.2313859,0.0001238363,0.0002639578,0.002280784,0.01287793,0.1178717,0.5986365,0.001791002,0.02937546,0.0001755044],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9949092,0.00006566221,0.002684482,0.00004903897,0.0000141339,0.00002880654,0.0002959596,0.00007075134,0.0018819],"genre_scores_gemma":[0.9918942,0.00006668679,0.006168609,0.00002537204,0.000002144146,0.0000111059,0.0001625103,0.00003097239,0.001638487],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.02423186,"threshold_uncertainty_score":0.04818159,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01469858826903137,"score_gpt":0.2227847114225778,"score_spread":0.2080861231535464,"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."}}