Warianty tytułu
Possibilities of the application of fluid inclusions to the studies on hydrocarbon migration (""MARMAROSH DIAMONDS")
Konferencja
Konferencja naukowo-techniczna GEOPETROL 2000 nt. Problemy naukowo-badawcze I rozwojowe poszukiwań i eksploatacji złóż gazu ziemnego i ropy naftowej : Zakopane, 25-28.09.2000
Języki publikacji
Abstrakty
A detailed analysis of fluid inclusions in the minerals in petroleum reservoirs points to the facts on the possibilities of their application to the studies on hydrocarbon migration. The migration processes by means of fluid inclusions may be totally reconstructed due to the analysis of the vein (epigenetic) minerals. The following complex studies should be performed: - macro- and microscopic morphological and genetical description of the vein structures; - determination of different generations of vein bitumens; mass-spcctrometric analyses of gas and isotope composition of main vein minerals (e.g. of quartz and calcite); petrography of fluid inclusions in vein minerals; ultraviolet studies of inclusions: microthermometry of inclusions (freezing, heating). Such analytical methods were applied by the present paper authors to the vein material from the Carpathians at the territory of SE Poland and W Ukraine. Numerous fault zones within the sedimentary rocks in the Carpathians being genetically connected with the formation of the mountain complex have been significant for fluid migration and creation of oil and gas fields. These zones have been filled with vein minerals, in that calcite, quartz in form of the so called "Marmarosh diamonds", different types of the organic matter as well as with oil itself. From the theoretical point of view the authors concern the vein structures as the healed channels which had once been paths for the migration of the aqueous and hydrocarbon fluids. The veins have at present a variated thickness and diversified content. Calcite of the rhomboheral crystal habit is the primary vein mineral. The co-occurring "Marmarosh diamonds" deserve a special attention due to the richness of the fluid inclusion types. They contain, namely, numerous hydrocarbon inclusions which display different size, shape and composition. Resulting from the hydrocarbon and aqueous inclusion studies in the quartz the sequence of these inclusions and the trapping conditions may be reconstructed. The following conclusions may be drawn from the analysis done by the authors: in the Carpathians, the hydrocarbon fluids different in composition co-migrated with the low-temperature aqueous solutions (chlorine-sulphate-carbonate solutions); evolution of the pT parameters in the quartz has been connected with the tectonic evolution of the Carpathian sedimentary structure; phase composition of the hydrocarbons points to the possibilities of the gas-condensate (methane) fields in the SE of the Carpathians whereas to the oil fields in NW part in the Dukla and Krosno (Silesia) units.
Słowa kluczowe
Rocznik
Strony
447--450
Opis fizyczny
Twórcy
autor
- Institut geologii i geohimii gorucih iskopaemyh NAN Ukrainy, Lvov, Ukraina
autor
- Pol'skij geologiceskij institut, Varsava, Pol'sa
Bibliografia
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-c71f0b71-84ce-409d-8f08-183da7b40156
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