{"id":"W2168737598","doi":"10.2118/109836-ms","title":"Beyond Decline Curves: Life-Cycle Reserves Appraisal Using an Integrated Work-Flow Process for Tight Gas Sands","year":2007,"lang":"en","type":"article","venue":"SPE Annual Technical Conference and Exhibition","topic":"Reservoir Engineering and Simulation Methods","field":"Engineering","cited_by":10,"is_retracted":false,"has_abstract":true,"ca_institutions":"Apache (Canada)","funders":"","keywords":"Process (computing); Work (physics); Flow (mathematics); Tight gas; Petroleum engineering; Permeability (electromagnetism); Production (economics); Computer science; Natural gas field; Boundary (topology); Environmental science; Geology; Engineering; Economics; Mathematics; Mechanical engineering; Natural gas; Hydraulic fracturing","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":[0.0008575793,0.0002173701,0.0002752091,0.0001404073,0.00009396357,0.00007088735,0.0001504376,0.0002306503,0.00004716356],"category_scores_gemma":[0.0004043017,0.000201619,0.00005870321,0.0003856748,0.00007686362,0.0004942723,0.0000324731,0.0002865761,0.000001831038],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0000281715,"about_ca_system_score_gemma":0.00003785073,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00001118275,"about_ca_topic_score_gemma":0.00003534749,"domain_scores_codex":[0.9987132,0.00003465051,0.0004016468,0.0002841364,0.0002081011,0.0003582538],"domain_scores_gemma":[0.9990395,0.0002168418,0.00004275395,0.0002081388,0.0002579752,0.0002348193],"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":[0.0005941089,0.0002569104,0.001495466,0.001391495,0.00006966448,0.00001645827,0.000691619,0.9447771,0.01221552,0.001593932,0.002657106,0.03424061],"study_design_scores_gemma":[0.001270834,0.0003640342,0.003169153,0.0007933964,0.00005472922,0.0000148235,0.000422646,0.9777654,0.007175416,0.005851786,0.002421672,0.0006960506],"study_design_candidate":"simulation_or_modeling","study_design_consensus":"simulation_or_modeling","genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.424315,0.0002914791,0.5741239,0.0001187435,0.0001069912,0.0002162126,0.00004544971,0.0003940463,0.0003881697],"genre_scores_gemma":[0.9629374,0.0001662358,0.03632674,0.0000601966,0.0002070974,0.00002161765,0.0002233245,0.00003822174,0.00001919611],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.5386224,"threshold_uncertainty_score":0.8221782,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.04583673106579091,"score_gpt":0.3505225649646023,"score_spread":0.3046858338988114,"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."}}