- Tytuł:
-
Charakterystyka zapiaszczeń oraz zmian facjalnych w utworach miocenu autochtonicznego centralnej części zapadliska podkarpackiego na bazie interpretacji profilowań geofizycznych
Characteristics of sand content and facial changes in the autochthonous Miocene formations of the central part of the Carpathian Foredeep based on well log interpretation - Autorzy:
- Piesik-Buś, Wacława
- Powiązania:
- https://bibliotekanauki.pl/articles/1834056.pdf
- Data publikacji:
- 2020
- Wydawca:
- Instytut Nafty i Gazu - Państwowy Instytut Badawczy
- Tematy:
-
miocen
zapiaszczenie
litologia
analiza geologiczna
Miocene
sand content
lithology
geological analysis - Opis:
- The research area is located in the central part of the Carpathian Foredeep, about 12 km south of the northern bank of the Carpathians. The Mesozoic (Upper Cretaceous and Upper Jurassic) carbonate complex is located in the autochthonous Miocene basement. The upper stage is composed of the allochtonic Miocene sediments and flysch deposits belonging to the Carpathian units. The main structural element, to which the gas accumulation pertains, is limited from the north by a regional dislocation zone. The area in question has been the subject of intensive geological and geophysical research as well as drilling works for several decades, which resulted in the discovery of several deposits of natural gas and crude oil. A series of seismic works have been carried out so far in the research area and its vicinity, which allowed for better recognition of the geological structure. The complexity of the geological structure associated with the Carpathian overthrust does not always provide an accurate assessment of the seismic data, especially in the part of the Carpathian Foredeep which is located below the Carpathian overthrust. The high lithofacial variability of the Miocene deposits is related to the molasse type of sedimentation. The main aim of the article is to demonstrate the possibility of using the interpretation of well geophysical measurements to illustrate the quantitative and statistical variability of analysed values. The obtained results were used to construct maps of lithological variability, sand content graphs, geological cross-sections as well as statistical analysis. In the progress of the project, a well correlation was carried out for selected boreholes, which allowed for the facial recognition of the Miocene formations, which are developed especially in clay and silt facies with a diversified proportion of sandstones.
- Źródło:
-
Nafta-Gaz; 2020, 76, 10; 688-695
0867-8871 - Pojawia się w:
- Nafta-Gaz
- Dostawca treści:
- Biblioteka Nauki
Artykuł