Mostrando 10 resultados de: 17
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Journal of Petroleum Geology(3)
Energy Sources, Part A: Recovery, Utilization and Environmental Effects(2)
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Journal of South American Earth Sciences(2)
Organic Geochemistry(2)
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Ciencias de la Tierra de otras zonas(3)
Minería y operaciones afines(2)
Aceites, grasas, ceras y gases industriales(1)
Ciencias de la Tierra de América del Norte(1)
Ciencias de la tierra(1)
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scopus(17)
Characterization of physicochemically abnormal coals in the matarere formation (Cerro Saroche National Park, Venezuela)
ArticleAbstract: Proximate and ultimate analyses, % Rm, vitrinite anisotropy, Rock-Eval Tmax, and biomarkers have beePalabras claves:Biomarkers, Cerro Saroche National Park, coal rank, organic petrography, vitrinite reflectanceAutores:Escobar M., Esteves I.H., Fortes-Garrido J.C., Gonzalo Márquez, Manuel Martínez, Moreno O., Ruggiero A.Fuentes:scopusCharacterization of tar-like material and producible oil in Misoa C2 and C3 reservoir sands of the Area 2 South (Ceuta Field, Venezuela)
ArticleAbstract: Here we characterized asphaltic oil occurrences in the Misoa C2 and C3 reservoirs within Area 2 SoutPalabras claves:Ceuta Field, Generation pulses, Misoa C2 and C3 reservoirs, Paleobiodegradation, Tar-like materialAutores:Duno L., Escobar M., Esquinas N., Gonzalo Márquez, Martín-Martín J.D., Permanyer A.Fuentes:scopusGeochemical composition of beach tar from the se coast of the paria peninsula, ne venezuela: Derivation from natural seepages
ArticleAbstract: Tar residues ("tarballs") occur frequently on the SE coast of the Paria Peninsula, NE Venezuela. ThiPalabras claves:Gulf of Paria, Los Bajos fault, Marine seepages, Naparima Hill Formation, organic geochemistry, Seepage oils, Tarballs, Trinidad, VENEZUELAAutores:Carlos Sierra, De Freitas K.A., Érica Lorenzo, Escobar M., Fernàndez R., Galarraga F., Gallego J.R., Gonzalo MárquezFuentes:scopusGeochemical signatures of bedded cherts of the upper La Luna Formation in Táchira State, western Venezuela: Assessing material provenance and paleodepositional setting
ArticleAbstract: Here we undertook an inorganic geochemical study of Cenomanian-Campanian bedded cherts (the TáchiraPalabras claves:Bedded chert, Depositional setting, Modified Murray diagram, Provenance, Táchira Ftanita memberAutores:Escobar M., Esquinas N., Garbán G., Gonzalo Márquez, Manuel Martínez, Rey O.Fuentes:scopusEffect of coal weathering on some geochemical parameters
ArticleAbstract: The effect of coal weathering on some geochemical parameters was studied. Seven pairs of fresh and aPalabras claves:Bitumen, Coal, floatability, geochemistry, humic substances, VENEZUELA, WeatheringAutores:Escobar M., Manuel MartínezFuentes:scopusDistribution of tiophenic organosulphur compounds in some venezuelan coals
ArticleAbstract: Some tiophenic organosulphur compounds (OSC) distribution in coal bitumen of four different localitiPalabras claves:Coal, Multivariate analysis, Organosulphur compounds (OSC), Sedimentary paleoenvironments, Thermal maturityAutores:Escobar M., Esteves I.H., González R., Manuel MartínezFuentes:scopusOrganic geochemical investigation and coal-bed methane characteristics of the Guasare coals (Paso Diablo mine, western Venezuela)
ArticleAbstract: The aim of this work was to carry out a geochemical study of channel samples collected from six coalPalabras claves:Biomarkers, coal-bed gas, Guasare bituminous coal, Paso Diablo mine, western VenezuelaAutores:Escobar M., Esteves I.H., Garbán G., Gonzalo Márquez, Hackley P., Manuel Martínez, Quintero K.Fuentes:scopusOrigin of crude oils from southern coastal Ecuador: A case study of quantitative extended diamondoid analysis (QEDA)
Conference ObjectAbstract:Palabras claves:Autores:Antonio Morato Medina, Érica Lorenzo, Escobar M., Gonzalo Márquez, Guzmán M.A., Lara-Gonzalo A., López P.I.Fuentes:scopusMain factors controlling the compositional variability of seepage oils from trujillo state, western venezuela
ArticleAbstract: The organic geochemistry of eighteen samples of seepage oils from Trujillo State, Western Venezuela,Palabras claves:biodegradation, Hydrocarbon flow rate, Oil seeps, Trujillo State, VENEZUELA, Water washingAutores:Escobar M., Galarraga F., Gonzalo Márquez, Manuel Martínez, Tocco R., Urbani F.Fuentes:scopusIntra-and inter-field compositional changes of oils from the Misoa B4 reservoir in the Ceuta Southeast Area (Lake Maracaibo, Venezuela)
ArticleAbstract: Here we analyzed oil samples from 35 wells in the Ceuta Southeast Area (Lake Maracaibo Basin, northwPalabras claves:Autores:Duno L., Érica Lorenzo, Escobar M., Esquinas N., Gallego J.R., Gonzalo MárquezFuentes:scopus