Browsing by Subject "petroleum explorations"

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Access status: Open Access ,
Analiza właściwości zbiornikowych skał węglanowych na podstawie wyników testów RPZ i pomiarów geofizyki wiertniczej (górnojurajskie podłoże zapadliska przedkarpackiego)
(2012) Dubiel, Stanisław; Zubrzycki, Adam; Maruta, Michał
W artykule przedstawiono wyniki analizy statystycznej zależności przepuszczalności efektywnej (KDST) od porowatości Phi/geof.) w celu oceny zmian właściwości zbiornikowych górnojurajskich skał węglanowych, występujących w podłożu centralnej części zapadliska przedkarpackiego, w strefie Bochnia - Dębica - Mędrzechów. Analizę przeprowadzono wykorzystując wyselekcjonowane dane uzyskane z pomiarów geofizyki wiertniczej oraz wyników testów złożowych rurowymi próbnikami złoża (RPZ). Metodą analizy statystycznej wyznaczono odpowiednie równanie regresji w postaci: log KDST = -0,142 + 0,178 x Phi/geof. mogące być przydatne do prognozowania współczynnika przepuszczalności efektywnej na podstawie wielkości współczynnika porowatości dla węglanowych skał górnej jury podłoża zapadliska przedkarpackiego.
Access status: Open Access ,
Analiza właściwości zbiornikowych utworów miocenu autochtonicznego zapadliska przedkarpackiego na podstawie wyników opróbowań złożowych i geofizyki wiertniczej
(2010) Dubiel, Stanisław; Zubrzycki, Adam
In the paper reservoir properties - effective permeability (K) and porosity (Phi), of autochthonous Miocene deposits in the area of the Carpathian Foredeep were analyzed. Two zones were selected (first - southern in area of Tarnów - Rzeszów and north-eastern of Wola Obszańska-Nowosielec) both differ in structural position and thickness of Miocene profiles. Data of effective permeability from DST and porosity from well logging as well laboratory data were used to determine relationships between them by statistic methods. On the basis of analysis's results simple equations: log K = a + b x Phi were established for gas-bearing autochthonous Miocene formation in the area of Carpathian Foredeep.
Access status: Open Access ,
Decision system model for HC exploration on the basis of DST test results
(2013) Dubiel, Stanisław; Zubrzycki, Adam; Maruta, Michał
The paper presents the results of 57 Drill Stem Tests (DST) within the Upper Jurassic carbonate rocks forming the Carpathian Fordeep basement in the area between Bochnia and Ropczyce (south Poland) performed by the Polish Oil and Gas Company in the years 1993 to 1998. Designated prospective horizons were tested with DST for assessing productivity of strata. DST tests were performed mostly in open hole sections of boreholes (more rarely in cased holes) after prior borehole casing perforation operations. In approximately 75% cases the cycle drill stem tests (DST) was used for testing the Upper Jurassic carbonate rocks. On the basis of data and experiences obtained during exploration of the Upper Jurassic carbonate rocks the model of the work-flow decision diagram was elaborated. It may be used for the integrated HC field management and for possible modifications in the drilling and testing technology.
Access status: Open Access ,
Interpretation of DST test results for the identification of HC accumulation limits or boundaries in the area of the Carpathians and Carpathian Foredeep (South Poland)
(2014) Dubiel, Stanisław; Rybicki, Czesław; Zubrzycki, Adam; Maruta, Michał
The result and interpretation of reservoir tests (DST) are presented in the paper. They were performed in 20 intervals of 17 production wells in years 1995-1997. These wells are located in the Central Carpathians (flysch sand beds) and mainly in the external and internal Carpathian Foredeep (the autochthonous and allochthonous Miocene thin bedded sandstones) and their substratum (mainly carbonates). The basies of the theoretical diagnoses for determining the main types of drainage zones or limits of hydrocarbon accumulations are presented in the form of a short description of the Kappa Company's programmatic procedure (Saphir 202B system). Some diagnostic diagrams for the main reservoir border models are described using the log-log method. Examples of their geological interpretation are also provided.
Access status: Open Access ,
The results of double-cycle drill stem test DST of the Malm carbonate rocks of the Carpathian Foredeep
(2012) Dubiel, Stanisław; Rychlicki, Stanisław
The paper presents the results of 25 industrial double-cycle drill stem test DST of the Malm carbonate rocks of the Carpathian Foredeep. Designated prospective levels were tested by DST to assess their productivity. DST tests were performed mostly in open hole sections of boreholes and rarely in cased hole - after earlier borehole casing perforations. Probes used American Standard company Halliburton and Baker Inflatable type. During testing of Malm reservoir rocks in approximately 75% was used double-cycle drill stem test DST. Due to renewed interest of the Polish Oil and Gas Company in petroleum prospection of Malm sediments, it is appropriate to use in the petroleum exploration results obtained thus far from industrial research double cycle DST reservoir testing. This provides, among others to modification of drilling technology and to sampling of Malm sediments in the planned boreholes.