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Keywords: calcite
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Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 13–15, 2023
Paper Number: URTEC-3864852-MS
... exposure. The bright material around pores is precipitated KCl. Fig. 2 shows results for the carbonate sample before and after exposure to CO2 for 3 weeks in a KCl brine. Fig. 2a is an image before exposure and shows regions of calcite mixed with grains of quartz, clays (chlorite), and pyrite. Fig. 2b...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 13–15, 2023
Paper Number: URTEC-3865660-MS
... 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: (1) input microscopic thin-section...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-3036-MS
... 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-3084-MS
... 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-3181-MS
... hydraulic fracturing upstream oil & gas structural geology reservoir characterization fracture characterization complex reservoir mudstone horizontal vein aapg bulletin urtec 3181 dolomite calcite beef delaware basin siliceous mudstone cement sandstone calcite vpdb texas...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2472-MS
... 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 23–25, 2018
Paper Number: URTEC-2902364-MS
..., 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 23–25, 2018
Paper Number: URTEC-2902629-MS
... 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 1–3, 2016
Paper Number: URTEC-2454614-MS
... 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 1–3, 2016
Paper Number: URTEC-2460784-MS
... 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 1–3, 2016
Paper Number: URTEC-2448745-MS
... 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2015
Paper Number: URTEC-2151959-MS
... 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2015
Paper Number: URTEC-2152297-MS
...-178526-m urtec type well shale gas play sequence tight rock analysis calcite TOC North Kuwait Energy Economics complex reservoir study area compression test conductivity kerogen Cander , Harris , 2012 , What Are Unconventional Resources? A Simple Definition Using Viscosity...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2015
Paper Number: URTEC-2147752-MS
... calcite rich intervals in a background of moderately constant calcite/dolomite. Fe concentration declines at the top of the interval, primarily due to its low abundance in the sandstones that mark base of the R4 zone. The weak correlation between Fe and Al suggest iron delivery with clastic inputs. Zr/Nb...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2015
Paper Number: URTEC-2154901-MS
... 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 25–27, 2014
Paper Number: URTEC-1922653-MS
... to keep up with the drill bit at the wellsite. data quality concentration Diffuse Reflectance structural geology kerogen content mineralogy Reservoir Characterization Herron maturity calcite FTIR drift mineralogy illite Upstream Oil & Gas smectite Clay Mineralogy core sample...

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