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Baroosmotic analysis of processes in ground waters of the Kokhanivka–Svydnytsia area (Ukrainian Carpathian Foredeep)

Kushnir S., Kost M., Dudok I., Pankiv R., Palchykova O.

Biuletyn Państwowego Instytutu Geologicznego

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2012

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nr 449

195--201

EN

A baroosmotic analysis of hydrogeological conditions was carried out in the Svydnytsia and Vizhomlia gas deposits as well as in the Kokhanivka oil deposit. It was demonstrated that in contrast to gas deposit, the oil deposits breaks the baroosmotic profile of boreholes into two independent parts: upper-normal and lower-abnormal where baroosmotic flows of H2O are able to move down the section due to predominance of the capillary osmose in oil brines. High baroosmotic permeability of gas deposits causes not only the increased thermal conductivity of the section, but also the appearance of temperature anomalies.

PL

Przeprowadzono baroosmotyczną analizę warunków hydrogeologicznych na złożach gazowych Svydnytsia i Vizhomlia oraz złożu naftowym Kokhanivka. Pokazano, że w odróżnieniu od złóż gazowych złoże naftowe dzieli baroosmotyczny profil szybów wiertniczych na dwie niezależne części: górną – normalną i dolną – anomalną, gdzie baroosmotyczne strumienie Н2О mogą poruszać się w dół wzdłuż przekroju z przewagą kapilarnej osmozy w solankach naftowych. Wysoka baroosmotyczna przenikliwość gazowych złóż powoduje nie tylko powiększoną przewodność cieplną przekroju, ale i pojawienie się anomalii temperaturowych.

2

Potencjał naftowy utworów jurajskich podłoża Karpat i zapadliska przedkarpackiego w rejonie Lwów-Sambor-Stryj (SW Ukraina)

Więcław D., Kotarba M. J., Kosakowski P., Koltun Y. V., Dudok I.

Prace Naukowe Instytutu Nafty i Gazu

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2010

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nr 170 wyd. konferencyjne

669--673

PL

Geochemiczna charakterystyka macierzystości utworów jurajskich w ukraińskiej części mezozoicznego podłoża zapadliska przedkarpackiego została wykonana w oparciu o wyniki badań 182 próbek pobranych z profili 12 odwiertów. Najbogatsze w materię organiczną są utwory jury środkowej, gdzie mediana TOC wynosi 0,72% wag. Utwory jury górnej są znacznie uboższe w węgiel organiczny (mediana TOC wynosi 0,11% wag). Utwory jury dolnej są całkowicie płonne (TOC poniżej 0,2% wag.). Potencjał węglowodorowy utworów środkowo- i górnojurajskich jest generalnie niski i zwykle nie przekracza 1 mg HC/g skały. W utworach jury środkowej dominuje gazotwórczy kerogen III typu. W węglanach górnojurajskich obserwuje się lokalnie zwiększony udział ropotwórczego kerogenu II typu. Dojrzałość utworów jury środkowej odpowiada początkowej i środkowej fazie generowania węglowodorów termogenicznych w„oknie ropnym", a górnej jury — przejściu z fazy generowania węglowodorów mikrobialnych do fazy „okna ropnego".

EN

Geochemical source-rock characteristics of the Jurassic strata in the basement of the Ukrainian part of the Carpathian Foreland was based on Rock-Eval results of 182 samples collected from 12 wells. The richest in organic matter are the Middle Jurassic strata, where TOC median equals 0.72 wt%. The Upper Jurassic carbonates are much poorer in organic carbon (TOC median equals 0.11 wt%). The Lower Jurassic strata are totally barren (TOC below 0.2 wt%). The hydrocarbon potential of the Middle and Upper 7urassic strata is generally low and usually do not exceed 1 mg HC/g rock. In the Middle Jurassic strata gas-prone Type III kerogen dominate. In the Upper Jurassic carbonates locally increased share of the oil-prone Type II kerogen is observed. Maturity of the Middle Jurassic strata responds to the initial and middle phase of the "oil window", and the Upper Jurassic rocks — transition between microbial hydrocarbon generation phase and "oil window".

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Zagal'nij stan zagospodaruvanna vidhodami ta slahi virisenna problemi vidhodiv v Ukraini

Pavluk M., Dudok I., Gvozdevic O., Podol's'kij M.

Prace Instytutu Nafty i Gazu

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2009

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nr 164

131-139

EN

The present-day state of affairs concerning wastes management in Ukraine is described, and the ways of solving the problems are shown. In the first place, it is wastes minimization by means of their reduction at formation place and reuse. The development of systems of sorting (in the formation place and also central sorting), recycling and composting is of great importance.

4

Vpliv dial'nosti naftovih, gazovih ta bugil'nih ob'ektiv na ekologicnu bezpeku prokordonnih teritorij Ukraini I Pol'si

Dudok I., Pavluk M., Podol's'kij M., Stefanik U.

Prace Instytutu Nafty i Gazu

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2007

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nr 145

271-280

EN

Lot of an oil, gas, coal and other technological (sanitary waste landfills, quarries etc.) objects at near border territories of Ukraine are situated. During tens of last years the activity of those objects was provided not in full accordance to demands of nature conservation and in several cases caused the no controlled ecology parameters decreasing. The complex providing of ecological safety of technological objects for progressive development of near border territories are proposed. The results of researches of water, ground and air pollution by some of Lviv region objects are presented.

5

Migration of palaeofluids in the contact zone between the Dukla and Silesian units, Western Carpathians - evidence from fluid inclusions and stable isotopes in quartz and calcite

Jarmołowicz-Szulc K., Dudok I.

Geological Quarterly

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2005

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Vol. 49, No. 3

291-304

EN

This study reconstructs the type and migration history of fluids within the Cretaceous-Paleogene rocks of the Silesian and Dukla units in the border area of the Polish and Ukrainian Carpathians. Quartz (the “Marmarosh diamonds”), calcite and organic matter fill fractures in the sedimentary rocks of the Tertiary accretionary prism of the Carpathian thrust units. The calcite and quartz contain numerous solid, liquid and gaseous inclusions. Generally two types of fluids are distinguished — aqueous and hydrocarbon. Homogenisation temperatures of hydrocarbons in quartz range from -128 to + 85°C. Hydrocarbon fluids contain light (methane) and heavier (oil) compounds. Aqueous inclusions generally display homogenisation temperatures between 110 and 230°C. The δI3CPBD values for calcite range from -3.5to +2.9%o, while the δI8Osmow range from 18.9 to 27.7%o. The 8I8OSMOwvalues for quartz range from 15.7 and 26.7%o. Fluidinclu- sions indicate that maximum pressures and temperatures occur at the early development of the vein mineralization. They vary from 2.4 to 2.7kbarin the Krosno (Silesian) Unit and from1.7to 1.9kbarinthe Dukla Unit at 190-230°C. The crystallisation of the “Marmarosh diamonds” in the NW part of the study area occurred at lower P-T conditions of 0.9 kbar and 110-175°C. Generally, the migrating fluids are represented by a mixture ofthe low salinity aqueous and the hydrocarbon-rich fluids.

6

The importance of vein minerals for reconstruction of the diagenetic and catagenetic processes in the Carpathian flysch

Jarmołowicz-Szulc K., Dudok I.

Biuletyn Państwowego Instytutu Geologicznego

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2001

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nr 396

73-74

7

Hydrocarbon inclusions in vein quartz (the "Marmarosh diamonds") from the Krosno and Dukla zones of the Ukrainian Carpathians

Dudok I., Jarmołowicz-Szulc K.

Geological Quarterly

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2000

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Vol. 44, Nr 4

415-423

EN

Fluid inclusion studies were conducted in the vein quartz known as the "Marmarosh diamonds" of the Krosno and Dukla zones of the Ukrainian Carpathians, which are potentially oil- and gas-bearing. The "Marmarosh diamonds" contain different types of fluid inclusions which record the evolution of the quartz formation. The inclusions were studied by means of gas chromatography, microthermometry and fluorescence. The following sequence has been observed: methane inclusions displaying characteristic features due to crystallography, light hydrocarbons, complex inclusions with a variety of bitumens, and gas-liquid inclusions with two different hydrocarbon phases. The regions where the light hydrocarbon inclusions occur seem to be the most promising as regards oil and gas prospects.