Matches in SemOpenAlex for { <https://semopenalex.org/work/W4322002810> ?p ?o ?g. }
Showing items 1 to 72 of
72
with 100 items per page.
- W4322002810 abstract "Both the primary mineral composition and secondary diagenetic processes may affect shale reservoir characteristics such as effective porosity, pore throat distribution, resulting permeability, wettability, etc. Hence, a better understanding of shale diagenesis is key to the prediction of shale oil and gas resource potential. The first member of the Qingshankou Formation (K2qn1) in the northern part of the Songliao Basin is an organic-rich shale with great source potential. Attempting to characterize the influence of different diagenetic processes active in the clay mineral-rich formation on pore space evolution, 19 sample from the K2qn1 interval (vitrinite reflectance from 0.55 to 1.58 %Ro) were selected and investigated by optical and scanning electron microscopy (SEM). This maturity window covers the hydrocarbon generative and expulsion stages and hence allows to reconstruct the processes active during organic matter (OM) transformation. Interactions of inorganic mineral grains with products of the transformation products of lamalginite-dominated primary OM (i.e., soluble bitumen) and associated pore space changes could be observed at various maturity stages. SEM visible authigenic quartz is present from the oil window up to the dry gas window, mostly in the form of submicron (nm-μm) size microcrystals embedded in the interparticle pores between clay minerals. Euhedral and subhedral quartz types are occasionally visible in mineral dissolution pores and OM-hosted pores associated with post-oil solid bitumen. Authigenic clay minerals (such as chlorite) are visible along the whole maturity range, but predominantly form in interparticle and OM-hosted pores at maturity levels >1.1 %Ro. Solid bitumen impregnations are often associated with authigenic minerals, forming rims along crystal boundaries. This indicates that the mineral precipitation may be associated with fluid compositional changes which occur during hydrocarbon generation (e.g., formation of water-soluble organic acids, etc.). According to the SEM observations, clay mineral-associated interparticle pores are the main storage space for bitumen in the K2qn1 source rock reservoir. These pores may be occluded at early to peak oil window maturity and re-opened at post-oil window maturity due to the expulsion of main parts of the generated hydrocarbons (pyrobitumen stage). This highlights that hydrocarbon generation and expulsion are key factors in porosity development both with respect to organic (bitumen generation) and inorganic (e.g., authigenic quartz precipitation) transformation reactions." @default.
- W4322002810 created "2023-02-26" @default.
- W4322002810 creator A5015102287 @default.
- W4322002810 creator A5026856247 @default.
- W4322002810 creator A5037032096 @default.
- W4322002810 creator A5050850501 @default.
- W4322002810 date "2023-05-15" @default.
- W4322002810 modified "2023-09-30" @default.
- W4322002810 title "Diagenesis in lacustrine organic-rich shales: evolution pathways and implications for reservoir characteristics" @default.
- W4322002810 doi "https://doi.org/10.5194/egusphere-egu23-12488" @default.
- W4322002810 hasPublicationYear "2023" @default.
- W4322002810 type Work @default.
- W4322002810 citedByCount "0" @default.
- W4322002810 crossrefType "posted-content" @default.
- W4322002810 hasAuthorship W4322002810A5015102287 @default.
- W4322002810 hasAuthorship W4322002810A5026856247 @default.
- W4322002810 hasAuthorship W4322002810A5037032096 @default.
- W4322002810 hasAuthorship W4322002810A5050850501 @default.
- W4322002810 hasConcept C101433766 @default.
- W4322002810 hasConcept C109007969 @default.
- W4322002810 hasConcept C114793014 @default.
- W4322002810 hasConcept C115393850 @default.
- W4322002810 hasConcept C126559015 @default.
- W4322002810 hasConcept C127313418 @default.
- W4322002810 hasConcept C130452526 @default.
- W4322002810 hasConcept C138496976 @default.
- W4322002810 hasConcept C151730666 @default.
- W4322002810 hasConcept C153127940 @default.
- W4322002810 hasConcept C15744967 @default.
- W4322002810 hasConcept C17409809 @default.
- W4322002810 hasConcept C178790620 @default.
- W4322002810 hasConcept C185592680 @default.
- W4322002810 hasConcept C199289684 @default.
- W4322002810 hasConcept C2777844515 @default.
- W4322002810 hasConcept C2779870107 @default.
- W4322002810 hasConcept C40212044 @default.
- W4322002810 hasConcept C48743137 @default.
- W4322002810 hasConceptScore W4322002810C101433766 @default.
- W4322002810 hasConceptScore W4322002810C109007969 @default.
- W4322002810 hasConceptScore W4322002810C114793014 @default.
- W4322002810 hasConceptScore W4322002810C115393850 @default.
- W4322002810 hasConceptScore W4322002810C126559015 @default.
- W4322002810 hasConceptScore W4322002810C127313418 @default.
- W4322002810 hasConceptScore W4322002810C130452526 @default.
- W4322002810 hasConceptScore W4322002810C138496976 @default.
- W4322002810 hasConceptScore W4322002810C151730666 @default.
- W4322002810 hasConceptScore W4322002810C153127940 @default.
- W4322002810 hasConceptScore W4322002810C15744967 @default.
- W4322002810 hasConceptScore W4322002810C17409809 @default.
- W4322002810 hasConceptScore W4322002810C178790620 @default.
- W4322002810 hasConceptScore W4322002810C185592680 @default.
- W4322002810 hasConceptScore W4322002810C199289684 @default.
- W4322002810 hasConceptScore W4322002810C2777844515 @default.
- W4322002810 hasConceptScore W4322002810C2779870107 @default.
- W4322002810 hasConceptScore W4322002810C40212044 @default.
- W4322002810 hasConceptScore W4322002810C48743137 @default.
- W4322002810 hasLocation W43220028101 @default.
- W4322002810 hasOpenAccess W4322002810 @default.
- W4322002810 hasPrimaryLocation W43220028101 @default.
- W4322002810 hasRelatedWork W2037234595 @default.
- W4322002810 hasRelatedWork W2056755178 @default.
- W4322002810 hasRelatedWork W2166316214 @default.
- W4322002810 hasRelatedWork W2303863295 @default.
- W4322002810 hasRelatedWork W2335122737 @default.
- W4322002810 hasRelatedWork W2381258391 @default.
- W4322002810 hasRelatedWork W2738170127 @default.
- W4322002810 hasRelatedWork W2766833875 @default.
- W4322002810 hasRelatedWork W2898172023 @default.
- W4322002810 hasRelatedWork W4322002810 @default.
- W4322002810 isParatext "false" @default.
- W4322002810 isRetracted "false" @default.
- W4322002810 workType "article" @default.