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Keywords: concretion
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Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-3181-MS
..., 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-390-MS
... explore the strategy of targeting high organic carbon/biogenic silica facies and the challenges posed by encountering carbonate concretion horizons. Geochemical observations including Si/Al and Si/Zr, and thin section and scanning electron microscopy indicate abundant recrystallized biogenic quartz...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 23–25, 2018
Paper Number: URTEC-2902624-MS
... description cement drilling operation fracture face complex reservoir orientation information CT scan propagation direction concretion fracture drilling-induced fracture society of petroleum engineers slant core plane hydraulic fracture sand pack twist hackle drilling mud URTeC: 2902624...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 1–3, 2016
Paper Number: URTEC-2460784-MS
.... In the calcareous and siliceous mudstones in the basin, early diagenetic phases include framboidal pyrite, phosphatic concretions, calcareous concretions, quartz, and dolomite with ferroan rims. Authigenic sphalerite occurs as thin beds and displaces barite in the laminae of the mudstone matrix, the timing of which...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 1–3, 2016
Paper Number: URTEC-2460837-MS
... fractures, and the stratigraphic architecture of the reservoir. The Vaca Muerta Formation shows a high degree of vertical heterogeneity associated to the presence of argillaceous and calcitized ash beds, concretions, calcite veins, bindstone and other limestone beds. This heterogeneity controls...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 1–3, 2016
Paper Number: URTEC-2461968-MS
... shale gas outcrop Reservoir Characterization facies Upstream Oil & Gas mudstone interbedded total organic carbon concretion structural geology organic matter Maracaibo basin complex reservoir La Luna volcanic ash foraminifera TOC Venezuela Lago black chert wackstone...

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