FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4243009152> ?p ?o ?g. }

• W4243009152 endingPage "383" @default.
• W4243009152 startingPage "383" @default.
• W4243009152 abstract "The Upper Jurassic-Lower Cretaceous Chia Gara Formation, a proven marine source rock characterised by predominance of amorphous organic matter (AOM) is known from few outcrops in NE Iraq and a number of exploration wells in the Zagros Fold Belt. This study presents comprehensive organic petrographic and mineralogical investigations of the dispersed organic matter and rock-forming minerals of the Tithonian-Berriasian Chia Gara Formation intersected by the Kirkuk well K-109 drilled in the giant Kirkuk oil field, NE Iraq. The organic petrographic analyses, including incident light microscopy and confocal laser-scanning microscopy (CLSM) were applied to carbonate source rocks with low to moderate organic carbon contents. Our data demonstrate the predominance of bituminite and solid bitumen among the examined dispersed organic matter followed by oil exudates and oil globule inclusions as well as the presence of minor contributions of alginite (i.e., Tasmanites and Leiospheridia), liptodetrinite and vitrinite. Based on optical characteristics and CLSM spectral fluorescence measurements, examinations of bituminite point towards the presence of bituminite type III. The bituminite type III encloses dark orange fluorescent amorphous components suggesting a genetic relationship either with liptodetrinite and/or with solid bitumen. The qualitative assessment of solid bitumen reveals several dissimilar forms identified in the analysed samples. The photometric and spectral fluorescence measurements point to distinct reflectance values ranging between 0.19% and 0.43% SBRr and lambda max values extending from 515 nm to 590 nm, respectively. The corresponding results of the solid bitumen exhibit (1) a lack of a relationship with depth and, (2) suggest its poor property as a reliable maturity indicator for the examined samples. The presence of oil exudates, oil globule inclusions and their association with solid bitumen suggests a genetic relation with the examined residues of liquid hydrocarbon phase. The performed thermal maturities assessments of dispersed organic matter point towards early-mature to peak-mature oil window with vitrinite reflectance values ranging between 0.52% VRr at 2801 m to 0.83% VRr at 3089 m depth. Mineralogical analyses revealed the predominance of calcite over dolomite in the examined limestone to marl lithofacies (e.g., clear rimmed dolomite) with localised intensive dolomitisation. In the phyllosilicate-rich matrix, predominance of calcite and siderite is observed, followed by zinc blende and pyrite. The composition of organic matter in the examined Chia Gara Formation with predominance of bituminite and solid bitumen makes the major marine source rock of Iraq's Cretaceous petroleum systems distinctive in terms of hydrocarbon generation and migration at an oil window stage as it provides suitable explanations for its generally low hydrogen index (HI) with only minor terrestrial input. In addition, the results presented herein can be helpful for future evaluation of thermal maturities and characterisation of optical appearances of dispersed organic matter in carbonates by incident light microscopy and especially by CLSM during hydrocarbon prospecting." @default.
• W4243009152 created "2022-05-12" @default.
• W4243009152 date "2004-11-01" @default.
• W4243009152 modified "2023-10-18" @default.
• W4243009152 title "04/02692 Variable alteration in heavy crude oils of west-central Saskatchewan, Canada" @default.
• W4243009152 doi "https://doi.org/10.1016/s0140-6701(04)80497-1" @default.
• W4243009152 hasPublicationYear "2004" @default.
• W4243009152 type Work @default.
• W4243009152 citedByCount "0" @default.
• W4243009152 crossrefType "journal-article" @default.
• W4243009152 hasConcept C107872376 @default.
• W4243009152 hasConcept C109007969 @default.
• W4243009152 hasConcept C126559015 @default.
• W4243009152 hasConcept C127313418 @default.
• W4243009152 hasConcept C151730666 @default.
• W4243009152 hasConcept C158787203 @default.
• W4243009152 hasConcept C17409809 @default.
• W4243009152 hasConcept C178790620 @default.
• W4243009152 hasConcept C185592680 @default.
• W4243009152 hasConcept C199289684 @default.
• W4243009152 hasConcept C2777101687 @default.
• W4243009152 hasConcept C2780181037 @default.
• W4243009152 hasConcept C2780659211 @default.
• W4243009152 hasConcept C48743137 @default.
• W4243009152 hasConcept C59235061 @default.
• W4243009152 hasConcept C6494504 @default.
• W4243009152 hasConceptScore W4243009152C107872376 @default.
• W4243009152 hasConceptScore W4243009152C109007969 @default.
• W4243009152 hasConceptScore W4243009152C126559015 @default.
• W4243009152 hasConceptScore W4243009152C127313418 @default.
• W4243009152 hasConceptScore W4243009152C151730666 @default.
• W4243009152 hasConceptScore W4243009152C158787203 @default.
• W4243009152 hasConceptScore W4243009152C17409809 @default.
• W4243009152 hasConceptScore W4243009152C178790620 @default.
• W4243009152 hasConceptScore W4243009152C185592680 @default.
• W4243009152 hasConceptScore W4243009152C199289684 @default.
• W4243009152 hasConceptScore W4243009152C2777101687 @default.
• W4243009152 hasConceptScore W4243009152C2780181037 @default.
• W4243009152 hasConceptScore W4243009152C2780659211 @default.
• W4243009152 hasConceptScore W4243009152C48743137 @default.
• W4243009152 hasConceptScore W4243009152C59235061 @default.
• W4243009152 hasConceptScore W4243009152C6494504 @default.
• W4243009152 hasIssue "6" @default.
• W4243009152 hasLocation W42430091521 @default.
• W4243009152 hasOpenAccess W4243009152 @default.
• W4243009152 hasPrimaryLocation W42430091521 @default.
• W4243009152 hasRelatedWork W114910605 @default.
• W4243009152 hasRelatedWork W1973002509 @default.
• W4243009152 hasRelatedWork W2035830659 @default.
• W4243009152 hasRelatedWork W2350899877 @default.
• W4243009152 hasRelatedWork W2382709825 @default.
• W4243009152 hasRelatedWork W3109536374 @default.
• W4243009152 hasRelatedWork W4220877884 @default.
• W4243009152 hasRelatedWork W4281779209 @default.
• W4243009152 hasRelatedWork W4291718810 @default.
• W4243009152 hasRelatedWork W4309334085 @default.
• W4243009152 hasVolume "45" @default.
• W4243009152 isParatext "false" @default.
• W4243009152 isRetracted "false" @default.
• W4243009152 workType "article" @default.