Matches in SemOpenAlex for { <https://semopenalex.org/work/W4306851330> ?p ?o ?g. }
Showing items 1 to 93 of
93
with 100 items per page.
- W4306851330 endingPage "105978" @default.
- W4306851330 startingPage "105978" @default.
- W4306851330 abstract "We studied the origins of overpressure, primarily using cuttings and wireline logs, in a nearly 4 km-thick succession of Tertiary and Upper Cretaceous shales and sandstones in the northwestern Onshore Gulf of Mexico. Our goals were: a) to specifically look for the microtextural changes in shale that are often inferred, by pore-pressure specialists, to develop in overpressured shale, and b) to test the utility of cuttings for that purpose. Overpressures begin approximately 2.5 km below the present ground surface and are moderate at the base of our study interval. Much of that section has velocity and density properties that are diagnostic of unloading, excess pore pressures generated after compaction has occurred. Our cuttings-based analyses included XRD and Rock-Eval measurements. Those datasets allowed us to define the changes in mineralogy and organic content (maturity and amount) with depth. We rule out organic maturation as a significant source of overpressure and instead identify clay diagenesis (smectite-to-illite transition) as the major source of excess pore pressure. Finally, we use SEM imaging of ion-milled samples to examine and document the nano-to micron-scale textural and mineralogic changes that occurred during diagenesis. Diagenetic quartz, present as overgrowths on quartz silt grains and microquartz intergrown with illite, is associated with the changes in clay mineralogy. Some nano-to micro-porosity can be preserved locally when detrital silt or rigid diagenetic minerals (mainly quartz and pyrite in our samples) prevent physical compaction. The stratigraphic offset between the onset of overpressure and the onset of clay diagenesis is probably due to the combined effects of the broad-scale stratigraphy (the section becomes sandier at shallower depths), and the temporal changes associated with overpressure generation and dissipation. Our experiment with cuttings demonstrated the utility and limitations of their use. Finally, our results challenge some of the assumptions about shale diagenesis that can be used during pore-pressure studies." @default.
- W4306851330 created "2022-10-20" @default.
- W4306851330 creator A5015055159 @default.
- W4306851330 creator A5029629297 @default.
- W4306851330 creator A5048585178 @default.
- W4306851330 date "2023-01-01" @default.
- W4306851330 modified "2023-09-30" @default.
- W4306851330 title "Clay diagenesis and overpressure development in Upper Cretaceous and Tertiary shales of South Texas" @default.
- W4306851330 cites W1499674039 @default.
- W4306851330 cites W1824714717 @default.
- W4306851330 cites W1978878626 @default.
- W4306851330 cites W1984627058 @default.
- W4306851330 cites W2001487723 @default.
- W4306851330 cites W2004482114 @default.
- W4306851330 cites W2010077294 @default.
- W4306851330 cites W2023372642 @default.
- W4306851330 cites W2025435619 @default.
- W4306851330 cites W2052694638 @default.
- W4306851330 cites W2060998519 @default.
- W4306851330 cites W2076291288 @default.
- W4306851330 cites W2095769858 @default.
- W4306851330 cites W2102845953 @default.
- W4306851330 cites W2106104357 @default.
- W4306851330 cites W2151514917 @default.
- W4306851330 cites W2317900326 @default.
- W4306851330 cites W2419018319 @default.
- W4306851330 cites W2776857706 @default.
- W4306851330 doi "https://doi.org/10.1016/j.marpetgeo.2022.105978" @default.
- W4306851330 hasPublicationYear "2023" @default.
- W4306851330 type Work @default.
- W4306851330 citedByCount "1" @default.
- W4306851330 countsByYear W43068513302023 @default.
- W4306851330 crossrefType "journal-article" @default.
- W4306851330 hasAuthorship W4306851330A5015055159 @default.
- W4306851330 hasAuthorship W4306851330A5029629297 @default.
- W4306851330 hasAuthorship W4306851330A5048585178 @default.
- W4306851330 hasConcept C102579867 @default.
- W4306851330 hasConcept C114793014 @default.
- W4306851330 hasConcept C121332964 @default.
- W4306851330 hasConcept C12294951 @default.
- W4306851330 hasConcept C127313418 @default.
- W4306851330 hasConcept C130452526 @default.
- W4306851330 hasConcept C151730666 @default.
- W4306851330 hasConcept C153127940 @default.
- W4306851330 hasConcept C161222754 @default.
- W4306851330 hasConcept C17409809 @default.
- W4306851330 hasConcept C187320778 @default.
- W4306851330 hasConcept C196715460 @default.
- W4306851330 hasConcept C199289684 @default.
- W4306851330 hasConcept C2776062231 @default.
- W4306851330 hasConcept C2779429093 @default.
- W4306851330 hasConcept C2779870107 @default.
- W4306851330 hasConcept C29452850 @default.
- W4306851330 hasConcept C40212044 @default.
- W4306851330 hasConcept C97355855 @default.
- W4306851330 hasConceptScore W4306851330C102579867 @default.
- W4306851330 hasConceptScore W4306851330C114793014 @default.
- W4306851330 hasConceptScore W4306851330C121332964 @default.
- W4306851330 hasConceptScore W4306851330C12294951 @default.
- W4306851330 hasConceptScore W4306851330C127313418 @default.
- W4306851330 hasConceptScore W4306851330C130452526 @default.
- W4306851330 hasConceptScore W4306851330C151730666 @default.
- W4306851330 hasConceptScore W4306851330C153127940 @default.
- W4306851330 hasConceptScore W4306851330C161222754 @default.
- W4306851330 hasConceptScore W4306851330C17409809 @default.
- W4306851330 hasConceptScore W4306851330C187320778 @default.
- W4306851330 hasConceptScore W4306851330C196715460 @default.
- W4306851330 hasConceptScore W4306851330C199289684 @default.
- W4306851330 hasConceptScore W4306851330C2776062231 @default.
- W4306851330 hasConceptScore W4306851330C2779429093 @default.
- W4306851330 hasConceptScore W4306851330C2779870107 @default.
- W4306851330 hasConceptScore W4306851330C29452850 @default.
- W4306851330 hasConceptScore W4306851330C40212044 @default.
- W4306851330 hasConceptScore W4306851330C97355855 @default.
- W4306851330 hasLocation W43068513301 @default.
- W4306851330 hasOpenAccess W4306851330 @default.
- W4306851330 hasPrimaryLocation W43068513301 @default.
- W4306851330 hasRelatedWork W2009716974 @default.
- W4306851330 hasRelatedWork W2086541084 @default.
- W4306851330 hasRelatedWork W2172128228 @default.
- W4306851330 hasRelatedWork W2323945396 @default.
- W4306851330 hasRelatedWork W2618443521 @default.
- W4306851330 hasRelatedWork W2782886826 @default.
- W4306851330 hasRelatedWork W2809663871 @default.
- W4306851330 hasRelatedWork W3044879609 @default.
- W4306851330 hasRelatedWork W66005305 @default.
- W4306851330 hasRelatedWork W3146002280 @default.
- W4306851330 hasVolume "147" @default.
- W4306851330 isParatext "false" @default.
- W4306851330 isRetracted "false" @default.
- W4306851330 workType "article" @default.