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Changes associated with field-scale demonstration in a steam-stimulated crude oil from the lagunillas oilfield (Lake Maracaibo, Venezuela)
ArticleAbstract: Cyclic steam injection with alkali is currently very commonly used to improve heavy-crude oil producPalabras claves:Biomarkers, carboxylic acids, cyclic steam injection with alkali, Lagunillas oilfield, viscous crudeAutores:Gonzalo Márquez, Hernández M., Manrique E., Manuel MartínezFuentes:scopusCharacterization of asphaltic oil occurrences from the southeastern margin of the Basque-Cantabrian Basin, Spain
ArticleAbstract: A geochemical investigation has been undertaken on biodegraded hydrocarbons in outcropping reservoirPalabras claves:Álava sector, Asphaltic oil occurrences, Ayoluengo oil field, Basque-Cantabrian Basin, BiodegradatioAutores:Gallego J.R., Gonzalo Márquez, Marín P., Permanyer 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:scopusComparative study of crude oils from the Machete area in the Eastern Venezuelan Basin by pyrolysis of asphaltenes
ArticleAbstract: This work is an analysis of crude oil samples from the two most recent producing wells in the MachetPalabras claves:Asphaltenes, Biomarkers, Chemical indicators, Eastern Venezuelan Basin, Extra-heavy oils, GC-MS techniques, Machete area, Orinoco Tar Belt, pyrolysis, SaturatesAutores:Galarraga F., Gonzalo Márquez, Martïnez A., Reátegui K.Fuentes:scopusComparison of polymer-based slag-mud slurries used for drilling jobs of steam stimulated wells in the Lagunillas oilfield (Venezuela)
ArticleAbstract: The mud-to-cement conversion or 'slag-mix' technology displays several advantages when compared to cPalabras claves:Lagunillas field, Mechanical behaviour, Polymer-based drilling mud, Slag-mud slurry, Steam injection, VENEZUELAAutores:Flores-Alés V., Gonzalo Márquez, Guzmán Villanueva M., Martín-Del-Río J.J., Rey O., Romero E.Fuentes:scopusCompositional variability in oils and formation waters from the Ayoluengo and Hontomín fields (Burgos, Spain). Implications for assessing biodegradation and reservoir compartmentalization
ArticleAbstract: The main scope of this work is the geochemical characterization of 12 crude oils and formation waterPalabras claves:Autores:Gallego J.R., Gonzalo Márquez, Permanyer A.Fuentes:scopusAssessment of the oil source-rock potential of the Pedregoso Formation (Early Miocene) in the Falcón Basin of northwestern Venezuela
ArticleAbstract: The early Miocene Pedregoso Formation is one of the numerous formations rich in organic matter withiPalabras claves:Biomarkers, Carbonate turbidites, Catagenesis, Falcón Basin, geochemistry, Organic matter, Redox conditions, Thermal maturity, VENEZUELAAutores:Gonzalo Márquez, Gutiérrez-Martín J.V., Manuel Martínez, Montero-Serrano J.C., Riboulleau A., Tribovillard N.Fuentes:scopusGeochemical characterization of crude oils and potential source rocks from southern coastal Ecuador: Hypothetical petroleum systems
ArticleAbstract: This research paper encompasses an organic geochemical investigation on oils and sedimentary rocks fPalabras claves:biodegradation, ECUADOR, mixed oil, Oil-source rock correlation, Progreso Basin province, QEDA resultsAutores:Antonio Morato Medina, Boente C., Gonzalo Márquez, Guzmán M.A., Witt C.Fuentes:scopusEffects of Steam Soak on the Two Eocene Heavy Crude Oils from the Urdaneta District (Venezuela)
ArticleAbstract: Simulation studies of steam-alkaline injection were made using the only two Eocene viscous crude oilPalabras claves:Biomarkers, Oil recovery, Simulation of steam-alkaline injection, Urdaneta District, Viscous crudesAutores:Galarraga F., Gonzalo Márquez, Permanyer A.Fuentes:scopusOrigin and biodegradation of crude oils from the northernmost fields in the bolivar coastal complex (Zulia State, Venezuela)
ArticleAbstract: The organic geochemical features of 30 sampled oils from the northern Bolivar Coastal Complex (LakePalabras claves:Biodegradation scales, Bolivar Coastal Complex, Mixed oils, QEDA analysis, Source faciesAutores:Boente C., Escobar M., Gonzalo Márquez, Guerrero B., Marín P., Permanyer A., Romero E., Sánchez A.B.Fuentes:scopus