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Record W1650370036

Williston Basin Anomalies

2001· article· en· W1650370036 on OpenAlexaboutno aff
Claus Sitzler

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicGeological Studies and Exploration
Canadian institutionsnot available
Fundersnot available
KeywordsDolomitizationDevonianGeologyOrdovicianPaleontologyPaleozoicStructural basinUnconformityEvaporiteGeochemistryFacies
DOInot available

Abstract

fetched live from OpenAlex

Over the past 50 years, the SE Saskatchewan portion of the Williston Basin, has produced mainly from Mississippian Subcrop, Structural, and Stratagraphic play types. In 1995, Bob Yurkovich of Berkley Petroleum made an Ordovician Red River Yeoman discovery which re-ignited exploration in the Devonian to Cambrian section of the Williston Basin. Since that time at least 20 additional significant discoveries have been made in the Red River Yeoman beds. Since that time additional horizons, which had not previously been produced in the Canadian portion of the Williston Basin, have had significant discoveries. The Ordovician Winnipeg sand (55-65 degree API sweet oil) and the Devonian Duperow (Leduc eq.) (42 degree API sweet oil) have both produced with IP's over 100 m3/d and cumulative production of over 30,000 m3 in less than 3 years. Some of the cores of these zones pose interesting questions. For example, the Winnipeg sand is a regional fine to medium grained sand that seems to be porous and very permeable (Darcy permeability) over the entire SE Saskatchewan portion of the Williston Basin. Yet locally, over some basement features, the Winnipeg sand is rendered nearly impervious by apparent pressure solution. The Duperow discoveries vary laterally from a regional lime mudstone to possible localized hydrothermal dolomitization along fault trends. The dolomitization creates vugs large enough to drop a pen thru the core. These features along with new pool discoveries in the Mississippian Bakken, Devonian Birdbear (Nisku eq.), and Devonian Winnipegosis (Keg River eq.) all tend to be localized above or beside possible granitic basement intrusives. A core was taken of basement from the Froude Red River Yeoman discovery well.

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.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.500
Threshold uncertainty score0.994

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0020.002
Science and technology studies0.0030.001
Scholarly communication0.0020.001
Open science0.0010.002
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0570.010

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 head0.026
GPT teacher head0.198
Teacher spread0.172 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2001
Admission routes1
Has abstractyes

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