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Carbonate Rocks - Wiley Online Library

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Last Updated: 15 September 2022

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CO2–Brine–rock interaction and sequestration capacity in carbonate reservoirs of the Tahe Oilfield, Xinjiang, China

In this paper, the behavior of CO2u2010brineu2010rock interactions was investigated under ultraviolent CO2 conditions. As a result of increased pressure, the CO2 solubility in brine increases with increasing pressure; the pores expand slowly and gradually approaches equilibrium; and the carbonate rock surface became more water-soluble; as a result of soil erosion and increased quartz content, the CO2 solubility in brine increases with increasing pressure; the pores narrowed; and subsequent precipitation reduced; and finally, the carbon dioxide content in the pores narrows; and finally, the phosphate rock surface becomes more water-u2013brine XRD The results show that CO2 solubility in brine was the most notable feature relative to mineral trapping in carbonate reservoirs, and that CO2 sequestration capacity increased with increasing temperature and pressure.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/ghg.2178


Experimental study of compaction localization in carbonate rock and constitutive modeling of mechanical anisotropy

Sedimentary rocks are naturally anisotropic and resistant to strain localization. Although the effect of rock anisotropy on the brittle/dilative regime has been studied extensively, the ductile/compactive regime has been less investigated. This paper discusses the anisotropic behavior of a high-u2010porosity carbonate rock from central Europe's anisotropic rock. Despite such shifts in the inelastic response, Digital Image Correlation has reported that the strain localization mode is independent of the coring direction, thus being primarily affected by the confinement factor. A series of tensorial bases have been developed to show how the oriented rock fabric modulates the yielding and plastic flow characteristics of the material. The effects of the coring direction on yield function and plastic flow rules is therefore somewhat different, requiring the use of different projection techniques.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/nag.3418


High‐Resolution Data Sets for Global Carbonate and Silicate Rock Weathering Carbon Sinks and Their Change Trends

Both the Carbon dioxide hydrate and global climate change are significant in global climate change, with Carbon Sink and Silicate rock weathering Carbon Sink. We therefore determine the following, based on the accepted Suchet and Hartmann models, which is backed up by long-term hydrometeorological results under the RCP8. 5. The SCS covers 37. 2 million square miles more area than the CCS, except for the difference in their weathering rates. According to CCS Flux and SCS Flux, respectively, they are 5. 36 and 1. 22 t/km2/yr. Similarly, the Full CCS is more expensive than the Full SCS. In addition, the mid-twenties of the northern hemisphere's mid-thirties are exacerbated by rising and humidity, while the decrease in runoff in the southern hemisphere's mid-latitudes has reduced karstification. We have reports and a model for detecting terrestrial carbon sink leakage.

Source link: https://onlinelibrary.wiley.com/doi/10.1029/2022EF002746


Autochthonous Dolomitization and Dissolution in the Microbial Carbonate Rocks of the Fengjiawan Formation in the Ordos Basin

In the Fengjiawan Formation of the Mesoproterozoic Jixian System in the southern Ordos Basin, several euhedral dolomite crystals and related pores are present. With the introduction of the microscope, scanning electron microscope, cathodoluminescence, and inu2010situ trace element analysis, it can be seen that different from the phase I dolomite that was destroyed by silicification, remains to be distinct from the original euhedral phase II dolomite, concentrated mainly in the oodular spheres and cores of the ooids's intact dark laminae. A substantial number of phase II dolomite crystals were destroyed, giving rise to mold pores and vugs that constituted the matrix pores and the large pore space of the Fengjiawan Formation.

Source link: https://onlinelibrary.wiley.com/doi/10.1111/1755-6724.14970


The Role of Seal and Source Rocks in Fluid‐rock Interactions and their Reservoir Effects within the Carbonate Deep Burial Realm

The widespread knowledge of porosity changes with depth was challenged by the discovery of deep water carbonate reservoirs in the United States. The TSR-u2013inducing calcite cements were homogeneously dispersed in the hydrocarbon column, with residual porewater obtained from the evaporative dolomitizing fluid being sold to TSR in the hydrocarbon column. Seal and source rocks not only play critical roles in hydrocarbon production, but also have a general view on the deep fluidu2010rock interactions and porosity evolution in the deep burial industry, according to this report.

Source link: https://onlinelibrary.wiley.com/doi/10.1111/1755-6724.14979

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions