Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Federico Galarraga"'
Autor:
Erica Lorenzo, Marcos Escobar, C. Sierra, José Luis R. Gallego, K.A. De Freitas, Federico Galarraga, Gonzalo Marquez, Raiza Fernández
Publikováno v:
Journal of Petroleum Geology. 36:179-193
Tar residues (“tarballs”) occur frequently on the SE coast of the Paria Peninsula, NE Venezuela. This paper reports on tarballs recovered from approximately 14 km of shoreline during monthly sampling over a two-year period ending in April, 2011.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fd8822ab193ea5bdc8591b8b8dd26b7
https://doi.org/10.1111/jpg.12550
https://doi.org/10.1111/jpg.12550
Autor:
Gonzalo Marquez, Franco Urbani, Federico Galarraga, Manuel Martínez, Marcos Escobar, R. Tocco
Publikováno v:
ResearcherID
The organic geochemistry of eighteen samples of seepage oils from Trujillo State, Western Venezuela, was investigated. These oils are probably derived from the predominantly marine Cretaceous La Luna Formation which is near peak maturity for oil gene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fc190aa587bb9066458f2ccda0f3665
https://doi.org/10.1111/j.1747-5457.2010.00477.x
https://doi.org/10.1111/j.1747-5457.2010.00477.x
Publikováno v:
Petroleum Science and Technology. 28:294-307
Simulation studies of steam-alkaline injection were made using the only two Eocene viscous crude oils from the Urdaneta District (Venezuela). Reactors were stainless steel and work conditions were a temperature of 200°C, 20 days' reaction time, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5dfb4d7110b5f02e0713bc4b144a74d
https://doi.org/10.1080/10916460802706521
https://doi.org/10.1080/10916460802706521
Autor:
Alejandro Martínez, Federico Galarraga, Gonzalo Marquez, J.F. Llamas, Katya Reategui, Manuel Martínez
Publikováno v:
Journal of Petroleum Science and Engineering. 61:9-14
ARTICLE I NFO Statistical descriptive analyses were performed taking into account sulphur, vanadium and nickel concentrations in several nonmature crude oil samples collected in the last few years from various Venezuelan and Spanish basins. Technique
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a76564474703a2706898dcee0907abe
https://doi.org/10.1016/j.petrol.2007.10.001
https://doi.org/10.1016/j.petrol.2007.10.001
Publikováno v:
Journal of Analytical and Applied Pyrolysis. 80:289-296
This work is an analysis of crude oil samples from the two most recent producing wells in the Machete area (Orinoco Tar Belt, Venezuela). The aim is to determine the type of environment in which the precursor organic materials were deposited. In spit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b293f2a824fa8aa025f44e4a407f2ba5
https://doi.org/10.1016/j.jaap.2007.03.006
https://doi.org/10.1016/j.jaap.2007.03.006
Publikováno v:
Journal of South American Earth Sciences. 14:387-399
The concentration and distribution of 35 elements in 78 coal samples from the Tachira State coal fields belonging to Los Cuervos Formation (Paleocene) of western Venezuela were obtained using atomic absorption spectrometry (AAS) and inductively coupl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e906e920b1e3a591a65b9cdd24c933c
https://doi.org/10.1016/s0895-9811(01)00035-9
https://doi.org/10.1016/s0895-9811(01)00035-9
Publikováno v:
Organic Geochemistry. 23:311-327
An organic geochemical study of oil seeps and Early to Middle Tertiary source rocks of the Northandean Flank (NAF) of the Venezuelan Andes range was performed to establish the possible contribution of terrestrial source rocks to the oil accumulations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::528c7f83bc85923e7b90cdd8a76ca8ad
https://doi.org/10.1016/0146-6380(95)00013-5
https://doi.org/10.1016/0146-6380(95)00013-5
Publikováno v:
Flavour and Fragrance Journal. 15:263-265
Espeletia weddellii Sch. Bip. ex Wedd, is a shrub with rosette growth form which grows in the Andes above 3500 m. The essential oil of the leaves of this plant, obtained by hydrodistillation, was analyzed by GC-FID using two fused silica gel columns
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d93b62fd2b497ebdfda6a0e46c008411
https://doi.org/10.1002/1099-1026(200007/08)15:4<263::aid-ffj907>3.0.co
https://doi.org/10.1002/1099-1026(200007/08)15:4<263::aid-ffj907>3.0.co
Publikováno v:
Bulletin of environmental contamination and toxicology. 68(4)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e5e26be2dd1780bb70226484eaaff0b
https://pubmed.ncbi.nlm.nih.gov/12069057
https://pubmed.ncbi.nlm.nih.gov/12069057
Publikováno v:
Estudios Geológicos. 56
Ten bituminous coal samples, showing several weathering levels, were collected at different depths into two subsurface galleries: G-l1, where coalbed 20 is mining, with a sulfur content ≻ 5 %; and G-24, where coalbed 24 is present, with a sulfur co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::986c0041f113af316b4f1cb646e932b3
https://doi.org/10.3989/egeol.00563-4146
https://doi.org/10.3989/egeol.00563-4146