{"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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.002821082,0.0004929164,0.0002516768,0.0006222424,0.003606441,0.002584052,0.0009259185,0.0007168972,0.00188678],"category_scores_gemma":[0.003245201,0.0002454617,0.0001849416,0.000658528,0.00160572,0.001619997,0.002301104,0.0008157328,0.0002965961],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.003841638,"about_ca_system_score_gemma":0.003464739,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.02030793,"about_ca_topic_score_gemma":0.08175093,"domain_scores_codex":[0.9978107,0.0007636108,0.0000884103,0.0002546169,0.0004648583,0.0006178641],"domain_scores_gemma":[0.9975924,0.0006822752,0.0002054068,0.00008675939,0.0007378199,0.0006954085],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"observational","study_design_scores_codex":[0.0006896715,0.001784992,0.1901529,0.001213707,0.00008716082,0.008345261,0.2041502,0.005526466,0.04247515,0.004669803,0.007318011,0.5335866],"study_design_scores_gemma":[0.00002860642,0.003803695,0.2214121,0.0004408657,0.00008458464,0.004755752,0.5926738,0.003230135,0.03295026,0.001476195,0.1389318,0.0002122294],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9872869,0.001002932,0.001754266,0.00124767,0.00002640225,0.00004343384,0.00004447165,0.00003829924,0.008555723],"genre_scores_gemma":[0.9887435,0.001398817,0.004147418,0.0001788859,0.0000141516,0.00001785621,0.00005258292,0.00002701806,0.005419763],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.02030793,"threshold_uncertainty_score":0.04037946,"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."}}