Stratigraphy and lithologic heterogeneity in the Mannville Group (southeast Saskatchewan) defined by integrating 3-D seismic and log data
Bibliographic record
Abstract
Research Article| June 01, 2006 Stratigraphy and lithologic heterogeneity in the Mannville Group (southeast Saskatchewan) defined by integrating 3-D seismic and log data Sabrina Sarzalejo; Sabrina Sarzalejo Department of Earth and Planetary Sciences, McGill University, Montreal, Quebec H3A 2A7, sabrinas@eps.mcgill.ca Search for other works by this author on: GSW Google Scholar Bruce S. Hart Bruce S. Hart Department of Earth and Planetary Sciences, McGill University, Montreal, Quebec H3A 2A7, hart@eps.mcgill.ca Search for other works by this author on: GSW Google Scholar Author and Article Information Sabrina Sarzalejo Department of Earth and Planetary Sciences, McGill University, Montreal, Quebec H3A 2A7, sabrinas@eps.mcgill.ca Bruce S. Hart Department of Earth and Planetary Sciences, McGill University, Montreal, Quebec H3A 2A7, hart@eps.mcgill.ca Publisher: Canadian Society of Petroleum Geologists Received: 10 May 2005 Accepted: 31 Mar 2006 First Online: 02 Mar 2017 Online ISSN: 2368-0261 Print ISSN: 0007-4802 © The Society of Canadian Petroleum Geologists Bulletin of Canadian Petroleum Geology (2006) 54 (2): 138–151. https://doi.org/10.2113/gscpgbull.54.2.138 Article history Received: 10 May 2005 Accepted: 31 Mar 2006 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Sabrina Sarzalejo, Bruce S. Hart; Stratigraphy and lithologic heterogeneity in the Mannville Group (southeast Saskatchewan) defined by integrating 3-D seismic and log data. Bulletin of Canadian Petroleum Geology 2006;; 54 (2): 138–151. doi: https://doi.org/10.2113/gscpgbull.54.2.138 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyBulletin of Canadian Petroleum Geology Search Advanced Search Abstract Wireline log and 3-D seismic data were integrated to define stratigraphic units and lithologic heterogeneity in the Mannville Group of southeast Saskatchewan. The Mannville in this area is a stratigraphically complex unit formed of fluvial to marine deposits that, although non-prospective for hydrocarbons in this area, share many similarities with time-equivalent strata in areas of heavy oil production. Seismic sequence stratigraphic principles permitted us to subdivide the Mannville into three packages. The ability to visualize the 3-D seismic data in a variety of ways, including arbitrary lines and stratal or horizon slicing techniques, helped us to define stratigraphic features that would affect fluid flow in hydrocarbon producing areas. These features include channels of various sizes and orientations, and channel elements such as scroll bars and lateral accretion surfaces, that are present within specific portions of the Group. Because the effectiveness of enhanced recovery methods such as steam-assisted gravity drainage depends on a development team’s ability to recognize reservoir heterogeneity, similar integration of 3-D seismic, well logs and other data types would assist greatly in developing the Mannville in heavy oil areas. There is close, but not one-to-one, correspondence between the stratigraphic units we defined and those established by regional log- and core-based correlations. Seismic resolution problems or log correlation styles could be responsible for the differences. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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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 | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.003 | 0.008 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 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".