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Record W2070237240 · doi:10.2118/147510-ms

Horn River Basin: A Study of the Behavior of Frac Barriers in a Thick Shale Package Using the Integration of Microseismic, Geomechanics and Log Analysis

2011· article· en· W2070237240 on OpenAlex

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

VenueCanadian Unconventional Resources Conference · 2011
Typearticle
Languageen
FieldEngineering
TopicHydraulic Fracturing and Reservoir Analysis
Canadian institutionsSchlumberger (Canada)Devon Energy (Canada)
Fundersnot available
KeywordsOil shaleGeologyDrillingMicroseismGeomechanicsPetroleum engineeringDirectional drillingHydraulic fracturingPetrologyGeomorphologyGeotechnical engineeringSeismologyPaleontologyEngineering

Abstract

fetched live from OpenAlex

Abstract Horn River Group (HRG) shales are prime exploration targets. The shales form a 200m thick package of over-pressured, organic rich, siliceous mudrocks found at drilling depths between 2400–2700m. The gross thickness of the shale interval and the observed frac barriers within the shale package present a challenge for maximizing the stimulated rock volume when completing wells. Within Devon Canada, an exploration program was designed to evaluate reservoir complexity and heterogeneity, the ultimate goal being to optimize horizontal, vertical and lateral well placement while balancing recovery factor and capital costs. Core and log data from vertical wells were analyzed to target optimal horizontal drilling zones for hydraulic fracture initiation and ease of drilling. Geomechanical log analysis supports the observation made from microseismic data that frac height growth through the frac barriers in the shale package happens preferentially depending upon the direction from which the fracture was initiated.

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: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.136
Threshold uncertainty score0.850

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
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 head0.028
GPT teacher head0.225
Teacher spread0.198 · 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