... al., 2022 showed the absence of any significant geochemical reactions within a geologic hydrogen storage time frame by analyzing fluid composition before and after hydrogen-NaCl brine exposure in various sandstones. Flesch et al., 2018 showed dissolution of calcite and anhydrite cements in sandstones...

... upstream oil & gas geologist united states government complex reservoir clastic rock mineral rock type co 2 reservoir characterization sedimentary rock structural geology subsurface storage geological subdiscipline climate change microstructure sample sulfide calcite...

... for mineral identification and characterization to fill the gap. This study covers a total of 4 classes (quartz, feldspar, calcite, and matrix) of 993 representative images in a clastic sedimentary rock, Mancos shale. The proposed architecture for automated classification is divided into the following stages...

..., reveal a complicated diagenetic history consisting of thirty-two major diagenetic events. The earliest diagenetic features were developed during shallow burial and include the formation of phosphatic and calcitic concretions, pyrite framboids, replacive dolomites, compacted fractures, and the cementation...

... characterization reservoir simulation complex reservoir structural geology fluid inclusion fluid inclusion data water salinity water saturation basin calcite society of petroleum engineers salinity saturation reserves evaluation urtec 2472 history ppk nacl eq formation water salinity upstream oil...

... intraparticle cement geological society calcite eagle ford URTeC: 1051 A Real-Time Method to Identify Brittle Zones in Carbonate-Rich Mudrocks using Bulk and Trace Element Geochemistry: A Study in the Eagle Ford, Haynesville, and Niobrara Formations Michael Fonseca*, Lori Hathon, Thomas Lapen, University...

... compared to its age-equivalent counterpart in Texas (Eagle Ford Shale), which is mostly calcite-rich, the TMS is richer in clay minerals. Moreover, TMS shows fine-scale heterogeneity which is challenging to characterize at a large scale. Being both oil and clay rich in addition to the availability...

... analysis vclay 0 clay kerogen production monitoring artificial intelligence petrophysical workflow reservoir property prediction evaluation saturation kerogen mineral inversion petrophysics normalization workflow interpretation precision porosity calcite stratigraphic framework urtec...

... Triassic organic-rich intervals within the Shublik suggests that the main microfacies is a laminated bioclastic wackestone/packstone that was episodically disrupted by energetic events of variable intensity. These energetic events produced transitional and sparry calcite bioclastic packstone to grainstone...

..., washing, sieving, sub-sampling and various other sample preparation steps before they are imaged at high resolution using a transparency scanner. These images are then run through an automated proppant detection workflow to identify how much proppant and possible natural calcite is within the sampled...

... collected all material from every open fracture (407 samples total) within ~600 ft of core. Samples consisted of drilling mud, aluminum shavings from the core barrel, shale and lithic fragments, calcite, and, potentially, sand proppant (95% plain and 5% colored resin-coated grains) pumped during...

... geological society transaction mechanical stratigraphy Austin Chalk rock strength composition hierarchical cluster analysis calcite Texas clay proxy succession interpretation Gulf Coast Association URTeC: 2668845 Defining Linkages Between Chemofacies and Mechanical Stratigraphy in the Austin...

... Summary The Vaca Muerta Fm mainly consists of black mudstones, variably calcitic and siliceous, rich or poor in bioclasts and with a variable content of calcitic radiolarians. These mudstones are punctuated by a variable proportion of heterogeneities such as parallel bedded fractures filled...

... as opposed to calcite and clays. Wang and Gale (2009) introduced a second desired parameter, dolomite, as another brittle component. The mineralogy concept of classifying rocks is very convenient to apply, as it only requires knowledge of rock's composition, accessible from logs or cuttings. Even more...

... of a dolomitic limestone source rock reservoir and fracturing. Impacts of dolomite influence on fracturing in limestone (mainly composed of calcite minerals) were studied using the quantitative evaluation of minerals obtained from a scanning electron microscope (QEMSCAN) mineral mapping technique...

... lithoclasts contain an apparent marine calcite cement followed by blocky calcite cement. Partial chert replacement in the lithoclasts is evident, however the timing is unknown. Other phases include authigenic replacement of allochems in the lithoclasts by albite, dolomite, ferroan dolomite and pyrite...

... Abstract The genesis and relationship between the existence of bedding-parallel, calcite-filled fractures known as "beef fractures" and different organic-rich shale and geomechanical facies has been examined by interpreting the concentration of these fractures across various facies. The force...

... reservoir characteristics. Figure 2 Stratigraphy of Kuwait and the unconventional Kerogen sequence within Reservoir-1. SPE-178526-MS/URTeC:2152297 3 XRD Analysis Detailed XRD analysis has been carried out in the lab on Kerogen samples of eight wells. The samples clearly show predominance of calcite. The XRD...

... Upstream Oil & Gas variation dolomite clay mineral structural geology Colorado School depositional environment grain size trace element mineral Reservoir Characterization water chemistry Piceance Basin Tribovillard lithofacies instrument calcite sediment chemostratigraphic...

... Summary We present a study on the lithofacies characterization of the Marcellus shale gas formation. The data set consists of nine vertical wells, each with petrophysical logs of composition (quartz, calcite, clay, and total organic carbon) and elastic parameters (density, and compressional...