Matches in SemOpenAlex for { <https://semopenalex.org/work/W2008641034> ?p ?o ?g. }
Showing items 1 to 85 of
85
with 100 items per page.
- W2008641034 endingPage "561" @default.
- W2008641034 startingPage "559" @default.
- W2008641034 abstract "Secondary petroleum inclusions in reservoir sandstones in the Frøy Field and the Rind Discovery are used in combination with burial history modelling, reservoir oils and core extracts to shed light on how and when these structures received their hydrocarbon charges. Analysis of normal alkane and biomarker distributions in these three data sets: fluid inclusions, core extracts and drill stem tests (DSTs) provide information on the changes in organic facies and maturity of petroleum in the various reservoir strata over time. The geochemistry of core extracts and DST oils in Rind and Frøy reveal that the maturity of the Rind petroleum system is higher and also of slightly less anoxic facies compared to the oil present in the Frøy system. Biodegraded oil is found today in a small sub-compartment of the Frøy Field. Using the burial history of the Frøy and the assumption that biodegradation effectively comes to a halt at 70–80°C, we tentatively conclude that the filling of this sub-compartment and the biodegradation of the oil must have occurred earlier than 30–40 m.y.b.p. and before oil from the Upper Jurassic Draupne shales more recently homogeneously filled the main Frøy structure. At 30–40 m.y.b.p., the Frøy structure was at a depth of 1.5–2 km, compared to the present depth of 3.5–4 km, and it is more than likely that neither the Heather nor the Draupne Formations were mature in the paleo-drainage area of the field at this time. Still, the stratigraphically deeper Dunlin Formation could have been mature and the geochemical signatures of the now biodegraded oil correlates with known signatures from the Dunlin Formation in this region. In the Rind Discovery, no fluorescent petroleum inclusions are observed in K-feldspar overgrowths. However, the number of inclusions in quartz and plagioclase is larger than that observed in the shallower Frøy Field. From the mean homogenization temperatures of the petroleum inclusions, which are close to the present reservoir temperature, filling of the Frøy Field and main Rind structure is suggested to have been a recent event. A presently dry compartment penetrated by well 25/2-15R2 in the Rind Discovery contains high residual oil saturations, indicating loss of oil from this structure either by direct cap rock leakage or displacement of oil by gas and subsequent cap rock leakage. Numerous petroleum and coexisting water inclusions were found in the presently dry overpressured structure and it is clear from measurements of homogenization temperatures that the water and the petroleum inclusions are not both saturated with respect to gas. Due to the lower solubility of hydrocarbon gas in water compared to in oil, it is more likely that water inclusions are closer to saturation than are the petroleum inclusions. Using the difference in homogenization temperatures in these two systems and the burial history, we tentatively suggest that the cap rock leakage occurred later than 10 m.y.b.p. Such information on time for reservoir filling and seal failure, when used to calibrate basin modelling, should facilitate better models for understanding movement of hydrocarbon fluids in basins." @default.
- W2008641034 created "2016-06-24" @default.
- W2008641034 creator A5045383795 @default.
- W2008641034 date "1995-01-01" @default.
- W2008641034 modified "2023-09-23" @default.
- W2008641034 title "Discussion of ‘Evidence for resetting of fluid inclusion temperatures from quartz cements in oilfields’ by Osborne and Haszeldine (1993)" @default.
- W2008641034 cites W2024402527 @default.
- W2008641034 cites W2029160306 @default.
- W2008641034 cites W2052992560 @default.
- W2008641034 cites W2142688952 @default.
- W2008641034 doi "https://doi.org/10.1016/0264-8172(95)91509-n" @default.
- W2008641034 hasPublicationYear "1995" @default.
- W2008641034 type Work @default.
- W2008641034 sameAs 2008641034 @default.
- W2008641034 citedByCount "4" @default.
- W2008641034 countsByYear W20086410342017 @default.
- W2008641034 crossrefType "journal-article" @default.
- W2008641034 hasAuthorship W2008641034A5045383795 @default.
- W2008641034 hasConcept C101433766 @default.
- W2008641034 hasConcept C109007969 @default.
- W2008641034 hasConcept C126559015 @default.
- W2008641034 hasConcept C127313418 @default.
- W2008641034 hasConcept C138496976 @default.
- W2008641034 hasConcept C146588470 @default.
- W2008641034 hasConcept C151730666 @default.
- W2008641034 hasConcept C157021035 @default.
- W2008641034 hasConcept C15744967 @default.
- W2008641034 hasConcept C17409809 @default.
- W2008641034 hasConcept C178790620 @default.
- W2008641034 hasConcept C185592680 @default.
- W2008641034 hasConcept C199289684 @default.
- W2008641034 hasConcept C2776152364 @default.
- W2008641034 hasConcept C2776364302 @default.
- W2008641034 hasConcept C2777207669 @default.
- W2008641034 hasConcept C2779870107 @default.
- W2008641034 hasConcept C2781197716 @default.
- W2008641034 hasConcept C2994245585 @default.
- W2008641034 hasConcept C548895740 @default.
- W2008641034 hasConcept C55493867 @default.
- W2008641034 hasConcept C5900021 @default.
- W2008641034 hasConcept C78762247 @default.
- W2008641034 hasConceptScore W2008641034C101433766 @default.
- W2008641034 hasConceptScore W2008641034C109007969 @default.
- W2008641034 hasConceptScore W2008641034C126559015 @default.
- W2008641034 hasConceptScore W2008641034C127313418 @default.
- W2008641034 hasConceptScore W2008641034C138496976 @default.
- W2008641034 hasConceptScore W2008641034C146588470 @default.
- W2008641034 hasConceptScore W2008641034C151730666 @default.
- W2008641034 hasConceptScore W2008641034C157021035 @default.
- W2008641034 hasConceptScore W2008641034C15744967 @default.
- W2008641034 hasConceptScore W2008641034C17409809 @default.
- W2008641034 hasConceptScore W2008641034C178790620 @default.
- W2008641034 hasConceptScore W2008641034C185592680 @default.
- W2008641034 hasConceptScore W2008641034C199289684 @default.
- W2008641034 hasConceptScore W2008641034C2776152364 @default.
- W2008641034 hasConceptScore W2008641034C2776364302 @default.
- W2008641034 hasConceptScore W2008641034C2777207669 @default.
- W2008641034 hasConceptScore W2008641034C2779870107 @default.
- W2008641034 hasConceptScore W2008641034C2781197716 @default.
- W2008641034 hasConceptScore W2008641034C2994245585 @default.
- W2008641034 hasConceptScore W2008641034C548895740 @default.
- W2008641034 hasConceptScore W2008641034C55493867 @default.
- W2008641034 hasConceptScore W2008641034C5900021 @default.
- W2008641034 hasConceptScore W2008641034C78762247 @default.
- W2008641034 hasIssue "5" @default.
- W2008641034 hasLocation W20086410341 @default.
- W2008641034 hasOpenAccess W2008641034 @default.
- W2008641034 hasPrimaryLocation W20086410341 @default.
- W2008641034 hasRelatedWork W2143415252 @default.
- W2008641034 hasRelatedWork W2348489483 @default.
- W2008641034 hasRelatedWork W2348623953 @default.
- W2008641034 hasRelatedWork W2349402474 @default.
- W2008641034 hasRelatedWork W2354674829 @default.
- W2008641034 hasRelatedWork W2358724623 @default.
- W2008641034 hasRelatedWork W2362558407 @default.
- W2008641034 hasRelatedWork W2373825271 @default.
- W2008641034 hasRelatedWork W2376561966 @default.
- W2008641034 hasRelatedWork W2380611469 @default.
- W2008641034 hasVolume "12" @default.
- W2008641034 isParatext "false" @default.
- W2008641034 isRetracted "false" @default.
- W2008641034 magId "2008641034" @default.
- W2008641034 workType "article" @default.