Browsing by Author "Dudek, Jacek"

Now showing 1 - 6 of 6

Access status: Open Access ,
An analysis of the influence of fracturing technological parameters on fracture propagation using numerical modeling
(Wydawnictwa AGH, 2017) Dudek, Jacek; Janiga, Damian; Wojnarowski, Paweł
Nowadays, hydraulic fracturing is one of the most common treatments for both conventional and unconventional fields, a stimulation technique designed to increase well production through the reduction of flow resistance caused by the drilling process or genuine reservoir properties. In this article the planar, three-dimensional numerical model of hydraulic fracturing treatment is presented. Based on the given model, the influence analysis of the basic technological parameters of the fracturing in a directional well on fracture propagation was conducted. The presented analysis shows the crucial role of numerical modeling in the process of hydraulic fracturing treatment design. The outcomes allowed us to identify the sensitivity of the obtained fracturing effects on the change of the treatment of technical parameters.
Access status: Open Access ,
Implementation of the integrated hydrocarbon reservoir management system by the example of exploiting Polish Lowland's natural gas reservoirs
(Wydawnictwa AGH, 2019) Dudek, Jacek; Podsobiński, Daniel; Potera, Krzysztof; Kawecki, Bartłomiej; Paliborek, Grzegorz; Pietrzyk, Krzysztof; Wójcik, Piotr
Nowadays, because of the smaller and smaller chances of discovering new hydrocarbon deposits with abundant resources as well as significant technological advance, the proper strategy of reservoir management connected with simultaneous optimization of its production parameters is the key element in the process of development the most economically advantageous variant of reservoir management and field development. In Polish Oil and Gas Company, the project called as »Digital reservoir« based on the interactive IAM platform was initiated, thanks to which the work of all upstream segments was integrated, starting from geophysics, geology through reservoir engineering, production engineering, process engineering ending with the economic model that allows for verification of the economic efficiency of the investment. This paper presents the methodology of integration all of the above elements and the results of the IAM system implementation with further production forecasts, on the example of selected natural gas reservoirs in the Polish Lowlands being PGNiG S.A. assets.
Access status: Restricted ,
Model optymalnego sterowania odwiertem wielodennym w procesie EOR-$CO_{2}$
(Data obrony: 2017-07-10) Dudek, Jacek
Wydział Wiertnictwa, Nafty i Gazu
Access status: Restricted ,
Projekt zabiegu szczelinowania hydraulicznego
(Data obrony: 2016-01-28) Dudek, Jacek
Wydział Wiertnictwa, Nafty i Gazu
Access status: Open Access ,
The fluid flow modeling procedure including a critically stressed fracture analysis of coalbed methane reservoir: a case study of Upper Silesian Coal Basin, Poland
(Wydawnictwa AGH, 2023) Kępiński, Michał; Ryder, Paweł; Dudek, Jacek; Podsobiński, Daniel
The geomechanical modeling turned out to be an essential component of the hydrocarbon exploration assisting reduction of risk of drilling issues and optimization of hydraulic fracturing treatment. This study provides a workflow of critically stressed fracture (CSF) analysis dedicated for coal layers. The main focus of the paper is applying the 1D mechanical models and following modelling of hydraulic fracturing treatment to describe the fracture behavior under the impact of the stresses at the wellbore scale. Another objective of presented study is demonstration of benefits of 1D and 3D CSF analysis to understand fracture contribution to gained volume of hydrocarbon after fracturing of coal seam. Interpretation of fracture orientation and their behavior is vital to effective development of coal bed methane (CBM) resources as the CSF can be responsible for considerable part of CBM production. Natural fractures and faults contribute to fluid flow through rock. It is often noted that natural fractures may not be critically stressed at ambient stress state. However, during stimulation the optimally oriented natural fracture sets have an inclination to become critically stressed. Hence, understanding of the recent stress state and fracture orientations is significant for well planning and fracturing design. The outcome of this study are comprehensive 1D mechanical Earth models (MEMs) for analyzed wells and explanation of behavior of identified CSF under variable stress state as well as understanding of the connectivity of natural fractures within zone subjected to fracturing treatment.
Access status: Open Access ,
The model of development of the multihorizontal, hydrocarbon reservoir using advanced exploitation methods
(Wydawnictwa AGH, 2018) Dudek, Jacek; Janiga, Damian; Wojnarowski, Paweł
The decreasing number of discoveries of new large hydrocarbon reservoirs as well as the significant technical progress promote the use of enhanced oil recovery methods. One of the most popular is the sequestration of carbon dioxide in matured or depleted hydrocarbon reservoirs. It allows to achieve the synergistic effect of increased crude oil production and underground sequestration of injected gas. In this paper the model of development of the multi horizontal, oil & gas field using multilateral wells technology connected with simultaneously implementation of the EOR-$CO_2$ methods was presented. Based on the performed model, ten-year productions forecasts were made, which results unambiguously confirmed the significant efficiency of the applied technological solutions with indication of the interesting prospects of their implementation in similar reservoirs.