Sedimentologic, diagenetic and tectonic evolution of the Saint-Flavien gas reservoir at the structural front of the Quebec Appalachians
Bibliographic record
Abstract
Research Article| June 01, 2003 Sedimentologic, diagenetic and tectonic evolution of the Saint-Flavien gas reservoir at the structural front of the Quebec Appalachians Rudolf Bertrand; Rudolf Bertrand INRS-Eau-TerreEnvironnement, 880 chemin Sainte-Foy, Québec, PQ G1S 2L2 Search for other works by this author on: GSW Google Scholar André Chagnon; André Chagnon INRS-Eau-TerreEnvironnement, 880 chemin Sainte-Foy, Québec, PQ G1S 2L2 Search for other works by this author on: GSW Google Scholar Michel Malo; Michel Malo INRS-Eau-TerreEnvironnement, 880 chemin Sainte-Foy, Québec, PQ G1S 2L2 Search for other works by this author on: GSW Google Scholar Yves Duchaine; Yves Duchaine Intragaz, 6565 Boul. Jean XXIII, Trois-Rivières-Ouest, PQ G9A 5C9 Search for other works by this author on: GSW Google Scholar Denis Lavoie; Denis Lavoie Ressources naturelles Canada, Commission géologique du Canada, 880 chemin Sainte-Foy, Québec, PQ G1S 2L2 Search for other works by this author on: GSW Google Scholar Martine M. Savard Martine M. Savard Ressources naturelles Canada, Commission géologique du Canada, 880 chemin Sainte-Foy, Québec, PQ G1S 2L2 Search for other works by this author on: GSW Google Scholar Author and Article Information Rudolf Bertrand INRS-Eau-TerreEnvironnement, 880 chemin Sainte-Foy, Québec, PQ G1S 2L2 André Chagnon INRS-Eau-TerreEnvironnement, 880 chemin Sainte-Foy, Québec, PQ G1S 2L2 Michel Malo INRS-Eau-TerreEnvironnement, 880 chemin Sainte-Foy, Québec, PQ G1S 2L2 Yves Duchaine Intragaz, 6565 Boul. Jean XXIII, Trois-Rivières-Ouest, PQ G9A 5C9 Denis Lavoie Ressources naturelles Canada, Commission géologique du Canada, 880 chemin Sainte-Foy, Québec, PQ G1S 2L2 Martine M. Savard Ressources naturelles Canada, Commission géologique du Canada, 880 chemin Sainte-Foy, Québec, PQ G1S 2L2 Publisher: Canadian Society of Petroleum Geologists Received: 05 Jul 2002 Accepted: 15 Jan 2003 First Online: 02 Mar 2017 Online ISSN: 2368-0261 Print ISSN: 0007-4802 © The Society of Canadian Petroleum Geologists Bulletin of Canadian Petroleum Geology (2003) 51 (2): 126–154. https://doi.org/10.2113/51.2.126 Article history Received: 05 Jul 2002 Accepted: 15 Jan 2003 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Rudolf Bertrand, André Chagnon, Michel Malo, Yves Duchaine, Denis Lavoie, Martine M. Savard; Sedimentologic, diagenetic and tectonic evolution of the Saint-Flavien gas reservoir at the structural front of the Quebec Appalachians. Bulletin of Canadian Petroleum Geology 2003;; 51 (2): 126–154. doi: https://doi.org/10.2113/51.2.126 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 The Beekmantown Group (Lower Ordovician) of the Saint-Flavien reservoir has produced 162x106 m3 (5.7 bcf) of natural gas between 1980 and 1994. The conversion of the field into gas storage was initiated in 1992 and the pool became operational in 1998. Integration of structural and sedimentologic features, carbonate and organic matter petrography and geochemistry for 13 drill holes is used to define a tectonic-sedimentologic-diagenetic model for porosity evolution in these reservoir dolostones.The Beekmantown Group consists of numerous fifth-order shallowing-upward cycles 1.0 to 7.0 m thick (average of 2.4 m). Each cycle consists of a basal shale deposited during the initial flooding of the platform which was subsequently covered by a shoaling succession of subtidal and intertidal limestones to intertidal dolostones.Early dolomitization has produced intercrystalline porosity and preserved some moldic pores in the intertidal facies. Near surface, post-dolomite karstification has created vugs that were subsequently filled by early marine calcite fibrous cement based on the δ18O and δ13C ratios of calcite. Early burial elements consist of horizontal stylolites, pyrite and sphalerite.Late migrated bitumen was thermally altered or vaporized as native coke under deep burial conditions exceeding 240°C, partly due to overthrusting of Appalachian nappes. Under these conditions, breccias and fractures were generated and subsequently filled with K-feldspar, quartz, illite, and xenomorphic and poikilotopic calcite. The δ18O of the poikilotopic calcite and homogenization temperature of coeval fluid inclusions indicate formation under high temperatures (Th about 260°C). Horizontal shear zones and marcasite-rich vertical stylolites were produced during folding and thrusting. Dissolution has preferentially affected late fracture-filling calcite and generated most of the actual porosity during or soon after the Taconian Orogeny. The relationship between the occurrence of smectite and this type of porosity indicates the low temperature condition of this dissolution (T <100°C). Porosity in the Saint-Flavien reservoir has been mostly produced by fracture-controlled, late to post-Taconian dissolution of early to late calcite in the intertidal dolomitic slightly porous facies at the top of rhythmic cycles that compose the Beekmantown Group. 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 distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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.
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 teacher head, 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".