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Assessing shale gas potential through classification of geochemical and mechanical properties of reservoir facies in the Upper Devonian shale succession, Liard Basin, Canada

2024· article· en· W4400664452 on OpenAlex
Sung Kyung Hong, Yuri Kim, C A Ozyer

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
aboutThe title or abstract carries a Canadian signal from the geographic lexicon.

Bibliographic record

VenueEpisodes · 2024
Typearticle
Languageen
FieldEngineering
TopicHydrocarbon exploration and reservoir analysis
Canadian institutionsGeological Survey of CanadaNatural Resources Canada
FundersNational Research Foundation of KoreaMinistry of Science and ICT, South KoreaMinistry of Trade, Industry and EnergyKorea Institute of Energy Technology Evaluation and PlanningKangwon National UniversityNational Research Foundation
KeywordsGeologyFaciesDevonianOil shaleStructural basinEcological successionShale gasGeochemistryPetrologyPaleontology

Abstract

fetched live from OpenAlex

A comprehensive estimation of shale generation/storage capacity (original generative organic carbon (GOCo)) and hydraulic fracturing characteristics (brittleness index (BI)) was conducted in the Upper Devonian shale sequence of the Liard Basin.GOCo was calculated from fraction of type II kerogen inferred from biogenic silica concentrations.BI was estimated from mechanical properties calculated from well-log data.Without well-log data, BI was converted from the relative contribution of biogenic and detrital silica concentrations.Based on GOCo and BI, the shale sequences were divided into four resource facies (RFs): RF1 (GOCo <1 wt%, BI 20-40), RF2 (GOCo 1-3 wt%, BI 20-60), RF3 (GOCo 2-5 wt%, BI 60-95), and RF4 (GOCo 5-14 wt%, BI 60-95).Shale with RF3 and RF4 characteristics were determined to have high hydraulic fracturing efficiency, high organic porosity, and capability to generate large amounts of gas.Considering the vertical variation of RFs, the Patry and Lower Exshaw formations are estimated as favorable shale gas reservoirs with abundant gas content and high hydraulic fracturing efficiency.If 30% of the total gas generation potential estimated from GOCo remains in the shale gas reservoir, the sum of residual gas volume of both formations in the study wells exceeds 280 bcf/section.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.613
Threshold uncertainty score0.989

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.027
GPT teacher head0.253
Teacher spread0.225 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it