{"id":"W2983545206","doi":"10.2118/199787-ms","title":"Silicate-Activated Geopolymer Alternatives to Portland Cement for Thermal Well Integrity","year":2019,"lang":"en","type":"article","venue":"SPE Thermal Well Integrity and Design Symposium","topic":"Concrete and Cement Materials Research","field":"Engineering","cited_by":27,"is_retracted":false,"has_abstract":true,"ca_institutions":"PQ Corporation (Canada)","funders":"","keywords":"Portland cement; Geopolymer; Fly ash; Materials science; Ultimate tensile strength; Sodium silicate; Casing; Brittleness; Cement; Waste management; Environmental science; Composite material; Petroleum engineering; Geology; Engineering","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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0001695383,0.0003538986,0.0001672923,0.0004573092,0.0001307772,0.0003829425,0.0001670327,0.0002565332,0.002439964],"category_scores_gemma":[0.0001448864,0.0001068944,0.0002480042,0.0002711114,0.0001446171,0.0003427745,0.0002017813,0.0003396306,0.0003838591],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002254372,"about_ca_system_score_gemma":0.0002118601,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0005857582,"about_ca_topic_score_gemma":0.003153889,"domain_scores_codex":[0.9998705,0.00002073023,0.0000080444,0.00001416661,0.00006238213,0.00002421801],"domain_scores_gemma":[0.9998361,0.00001850583,0.00005889829,0.00001132277,0.0000443422,0.00003079874],"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":[0.00008508818,0.00004558797,0.0002186793,0.00008626023,0.0000077973,0.0000670732,0.00001216842,0.0005942665,0.9936327,0.0002565274,0.00005180707,0.004942115],"study_design_scores_gemma":[0.00000611442,0.0004114569,0.00153029,0.000008764133,0.00001374967,0.00007511865,0.00002219362,0.001154179,0.9931184,0.00003355489,0.00361998,0.000006170902],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9865822,0.003371881,0.003917431,0.00006463686,0.00004759438,0.00004492397,0.0001047133,0.00007920388,0.005787487],"genre_scores_gemma":[0.9946154,0.0007041487,0.001977178,0.00001600866,0.000005333133,0.000008764863,0.00004788907,0.000009923861,0.002615467],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.002439964,"threshold_uncertainty_score":0.008162558,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0281453559202295,"score_gpt":0.26682333480857,"score_spread":0.2386779788883405,"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."}}