Challenges, Uncertainties and Issues Facing Gas Production From Hydrate Deposits in Geologic Systems
Bibliographic record
Abstract
Challenges, Uncertainties and Issues Facing Gas Production from Hydrate Deposits in Geologic Systems G. J. Moridis; G. J. Moridis Lawrence Berkeley National Laboratory Search for other works by this author on: This Site Google Scholar T. S. Collett; T. S. Collett US Geological Survey Search for other works by this author on: This Site Google Scholar M.. Pooladi-Darvish; M.. Pooladi-Darvish University of Calgary and Fekete Search for other works by this author on: This Site Google Scholar S.. Hancock; S.. Hancock RPS Group Search for other works by this author on: This Site Google Scholar C.. Santamarina; C.. Santamarina Georgia Institute of Technology Search for other works by this author on: This Site Google Scholar R.. Boswell; R.. Boswell US Department of Energy Search for other works by this author on: This Site Google Scholar T.. Kneafsey; T.. Kneafsey Lawrence Berkeley National Laboratory Search for other works by this author on: This Site Google Scholar J.. Rutqvist; J.. Rutqvist Lawrence Berkeley National Laboratory Search for other works by this author on: This Site Google Scholar M.. Kowalsky; M.. Kowalsky Lawrence Berkeley National Laboratory Search for other works by this author on: This Site Google Scholar M. T. Reagan; M. T. Reagan Lawrence Berkeley National Laboratory Search for other works by this author on: This Site Google Scholar E. D. Sloan; E. D. Sloan Colorado School of Mines Search for other works by this author on: This Site Google Scholar A. K. Sum; A. K. Sum Colorado School of Mines Search for other works by this author on: This Site Google Scholar C.. Koh C.. Koh Colorado School of Mines Search for other works by this author on: This Site Google Scholar Paper presented at the SPE Unconventional Gas Conference, Pittsburgh, Pennsylvania, USA, February 2010. Paper Number: SPE-131792-MS https://doi.org/10.2118/131792-MS Published: February 23 2010 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Moridis, G. J., Collett, T. S., Pooladi-Darvish, M.. , Hancock, S.. , Santamarina, C.. , Boswell, R.. , Kneafsey, T.. , Rutqvist, J.. , Kowalsky, M.. , Reagan, M. T., Sloan, E. D., Sum, A. K., and C.. Koh. "Challenges, Uncertainties and Issues Facing Gas Production from Hydrate Deposits in Geologic Systems." Paper presented at the SPE Unconventional Gas Conference, Pittsburgh, Pennsylvania, USA, February 2010. doi: https://doi.org/10.2118/131792-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE Unconventional Resources Conference / Gas Technology Symposium Search Advanced Search Abstract The current paper complements the Moridis et al. (2009a) review of the status of the effort toward commercial gas production from hydrates. We aim to describe the concept of the gas hydrate petroleum system, to discuss advances, requirement and suggested practices in gas hydrate prospecting and GH deposit characterization, and to review the associated technical, economic and environmental challenges and uncertainties, including: the accurate assessment of producible fractions of the GH resource, the development of methodologies for identifying suitable production targets, the sampling of hydrate-bearing sediments and sample analysis, the analysis and interpretation of geophysical surveys of GH reservoirs, well testing methods and interpretation of the results, geomechanical and reservoir/well stability concerns, well design, operation and installation, field operations and extending production beyond sand-dominated GH reservoirs, monitoring production and geomechanical stability, laboratory investigations, fundamental knowledge of hydrate behavior, the economics of commercial gas production from hydrates, and the associated environmental concerns. Keywords: gas hydrate, gas production, hydrate deposit, moridis, hydrate saturation, reservoir characterization, methane hydrate, upstream oil & gas, saturation, hydrate Subjects: Reservoir Characterization, Formation Evaluation & Management Copyright 2010, Society of Petroleum Engineers You can access this article if you purchase or spend a download.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.006 | 0.017 |
| Meta-epidemiology (narrow) | 0.000 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.003 |
| Science and technology studies | 0.002 | 0.005 |
| Scholarly communication | 0.007 | 0.011 |
| Open science | 0.002 | 0.004 |
| Research integrity | 0.004 | 0.003 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".