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Record W2028568830 · doi:10.2118/0711-0012-jpt

En Route: An Unconventional Future

2011· article· en· W2028568830 on OpenAlexaboutno aff
Alain Labastie

Bibliographic record

VenueJournal of Petroleum Technology · 2011
Typearticle
Languageen
FieldEngineering
TopicReservoir Engineering and Simulation Methods
Canadian institutionsnot available
Fundersnot available
KeywordsUnconventional oilTight gasCoalbed methanePetroleum engineeringOil shaleFossil fuelTight oilSteam-assisted gravity drainageCompletion (oil and gas wells)Resource (disambiguation)Shale gasProduction (economics)Petroleum industryGeologyNatural resource economicsOil sandsCoalHydraulic fracturingEngineeringCoal miningEconomicsWaste managementAsphaltArchaeologyComputer sciencePaleontologyHistory

Abstract

fetched live from OpenAlex

President's column In the last couple of years, we have seen an extraordinary growth of unconventional gas activity that is literally reshaping our industry—notably, tight gas reservoirs and gas shales in North America and CSG/LNG projects in Australia (CSG means coal seam gas, which is another name for coalbed methane). These advances were made feasible by technology, which made possible what was once considered impossible to achieve (production per well, sufficiently low cost per well, etc.), but also by perseverance. We must not forget that it took about 20 years to find the key to unlock the potential of these unconventional gas plays, whose resource had been identified a long while ago. This remark applies also to the development of another unconventional hydrocarbon, the oil sands of Canada; it took 20 years from the concept of steam-assisted gravity drainage (SAGD), and the first patent by Roger Butler, to significant production using this technology As recently as 5 years ago, almost nobody was forecasting what is happening now with gas shales. Our current success has been made possible by a few technological breakthroughs, or step changes, which are by essence difficult to predict. I think that will be the case for all unconventional hydrocarbons, such as oil shales and, perhaps someday, gas hydrates. It is almost impossible to make a reliable guess about when gas hydrates will come onstream with significance, but this will happen at some time. It is also interesting to compare oil shales and gas shales—oil-shale production still faces a lot of technological barriers, and the economics look quite uncertain, which is exactly the situation gas shales were in 20 years ago. Unconventional hydrocarbons are interesting for two reasons: (1) the resources are huge, and may cover our needs for more than a century; and (2) the geographic distribution of those resources, which is mostly in non-OPEC countries. The gas resource is important in North America, central Europe, and Australia. The oil-shales resource, as known today, is mostly in North America and “new” countries such as Jordan, Lithuania, Morocco, and a few others. A very important point is that, in addition to “traditional” technology challenges, the development of all types of unconventional hydrocarbons is facing similar environmental issues: One is land use—in all cases, footprint is important, mostly due to the large number of wells. The other is water issues—production of dirty water (to be treated adequately), or the risk or fear of contamination of aquifers when fracturing the pay zone.

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 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: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.457
Threshold uncertainty score0.367

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 head0.013
GPT teacher head0.244
Teacher spread0.231 · 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 teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
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

Citations1
Published2011
Admission routes1
Has abstractyes

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