{"id":"W1978322303","doi":"10.2118/164087-pa","title":"Prevention of Acid-Induced Asphaltene Precipitation: A Comparison of Anionic Vs. Cationic Surfactants","year":2015,"lang":"en","type":"article","venue":"Journal of Canadian Petroleum Technology","topic":"Petroleum Processing and Analysis","field":"Chemistry","cited_by":31,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"Vedecká Grantová Agentúra MŠVVaŠ SR a SAV","keywords":"Asphaltene; Oil shale; Precipitation; Cationic polymerization; Ferric; Chemistry; Flocculation; Dispersant; Chemical engineering; Crude oil; Geology; Petroleum engineering; Inorganic chemistry; Organic chemistry; Dispersion (optics)","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":[0.0005073253,0.0003300017,0.000320087,0.0005081224,0.0002771578,0.0004884623,0.0003225229,0.0003087649,0.00137874],"category_scores_gemma":[0.0006360121,0.0001458167,0.000236761,0.0003691372,0.0002406064,0.0003981645,0.0002271545,0.0003181375,0.0001554295],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000326654,"about_ca_system_score_gemma":0.0006748867,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.004463254,"about_ca_topic_score_gemma":0.01136116,"domain_scores_codex":[0.9996088,0.00007353212,0.00004352879,0.00004058499,0.0001751694,0.00005842482],"domain_scores_gemma":[0.9994073,0.0001494325,0.0001422994,0.00001993453,0.0001568993,0.0001241795],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.01046894,0.001293852,0.002266599,0.0009502716,0.0001369127,0.0001261887,0.0001226872,0.000813655,0.9364903,0.0003045854,0.0001844842,0.04684161],"study_design_scores_gemma":[0.0003978516,0.02881652,0.007423793,0.00005219628,0.0003153403,0.0001371274,0.0001431117,0.001095558,0.9546719,0.00006982436,0.006853185,0.00002363291],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9940277,0.003351941,0.0006212311,0.0000409412,0.0000490775,0.00008178613,0.00007425239,0.00001534525,0.001737744],"genre_scores_gemma":[0.9914269,0.003825626,0.002044931,0.00004936637,0.00002203083,0.0000384685,0.0001229115,0.0000117419,0.002458017],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.004463254,"threshold_uncertainty_score":0.008874536,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03252106219736645,"score_gpt":0.2929616714759877,"score_spread":0.2604406092786213,"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."}}