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Record W4394796551 · doi:10.18814/epiiugs/2024/024003

Evaluation of organic matter abundance of source rocks of biogenic gas: a case from the Quaternary Qigequan Formation Shale, Sanhu Depression, Qaidam Basin

2024· article· en· W4394796551 on OpenAlex
Xiaoxue Liu, Zhenxue Jiang, Xianglu Tang, Kun Zhang, Mingshuai Xu

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.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueEpisodes · 2024
Typearticle
Languageen
FieldEngineering
TopicHydrocarbon exploration and reservoir analysis
Canadian institutionsSimon Fraser University
FundersSimon Fraser UniversityNational Natural Science Foundation of ChinaChina Scholarship CouncilStrong
KeywordsShale gasGeologyOil shaleStructural basinAbundance (ecology)Source rockGeochemistryQuaternaryDepression (economics)Organic matterGeomorphologyPaleontologyChemistryEcologyOrganic chemistry

Abstract

fetched live from OpenAlex

A correct understanding of organic matter abundance is key to understanding the conditions necessary for generating biogenic gas, seeking favorable exploration intervals and fields and evaluating resources correctly.The Qigequan Formation shale of the Quaternary in the Sanhu Depression of the Qaidam Basin is taken as the research object.The abundance of dissolved organic matter was determined through total carbon, pyrolysis and other experiments.The evaluation criteria were established and applied.The resource quality is calculated.The results are as follows.(1) Dissolved organic matter is the basis for biogenic gas generation and should be emphasized in the evaluation.(2) The shale has a relatively high dissolved organic carbon (DOC) content, with an average of 2.48 times that of insoluble organic carbon.(3) The DOC of the good source rock is more than 0.60%, that of the medium is 0.25~0.60%,and that of the poor is less than 0.25%.(4) The distribution of good source rocks is influenced by the position and depth of the water column and the paleoclimate.Favorable intervals are mainly in the upper sections of K10, K9 and K8 and the middle section of K7.The favorable areas are mainly the Tainan, Sebei and Sedong areas.

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)0.001
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: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.323
Threshold uncertainty score0.689

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
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)0.0010.000

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 head0.018
GPT teacher head0.248
Teacher spread0.230 · 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