{"id":"W2089907952","doi":"10.2118/110679-ms","title":"Improving Well Productivity and Profitability in the Bakken—A Summary of Our Experiences Drilling, Stimulating, and Operating Horizontal Wells","year":2007,"lang":"en","type":"article","venue":"SPE Annual Technical Conference and Exhibition","topic":"Hydraulic Fracturing and Reservoir Analysis","field":"Engineering","cited_by":53,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Drilling; Profitability index; Petroleum engineering; Completion (oil and gas wells); Wellbore; Productivity; Production (economics); Geology; Offset (computer science); Engineering; Mining engineering; Computer science; Business; Economics; Mechanical engineering","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":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0009012099,0.0001307686,0.0002072434,0.00006692309,0.00009307852,0.00005033889,0.00007297549,0.0001030547,0.00000474354],"category_scores_gemma":[0.0001069362,0.00009288723,0.00002474953,0.000136855,0.0001237402,0.000268373,0.00005705304,0.000261391,3.18408e-7],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00001468005,"about_ca_system_score_gemma":0.00001142269,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0002958073,"about_ca_topic_score_gemma":0.0004155062,"domain_scores_codex":[0.9990644,0.00004424751,0.0002794268,0.000256614,0.000153051,0.0002022164],"domain_scores_gemma":[0.9996534,0.0000701557,0.00004170931,0.0001367896,0.000045947,0.00005200009],"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":[0.0003285697,0.0008126101,0.2040277,0.003467879,0.0001495593,0.0001179806,0.08425926,0.009697955,0.526281,0.001573145,0.0007384757,0.1685459],"study_design_scores_gemma":[0.002438959,0.002384646,0.3433637,0.0009442202,0.0003007543,0.000167399,0.2176248,0.1284806,0.2980905,0.003303474,0.0006214739,0.002279487],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9952712,0.000253047,0.003322702,0.0002023378,0.00002470797,0.0002119136,0.000005150728,0.00005075134,0.0006581941],"genre_scores_gemma":[0.9993862,0.00005959157,0.0004476847,0.00001212988,0.00006234123,0.0000116681,0.000004921922,0.000006648152,0.000008841292],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2281905,"threshold_uncertainty_score":0.3787831,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01136814421001448,"score_gpt":0.2526716016713359,"score_spread":0.2413034574613214,"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."}}