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Collaborating Authors
Poland
University of Silesia SEG Student Chapter is a part of the Scientific Student Society of Geophysics "PREM" at Faculty of Earth Sciences at University of Silesia in Katowice, Poland. As part of the activities of the Society of Exploration Geophysicists (SEG) Student Chapter, members carry out a number of scientific projects. The efforts of all participants will result in achieving the goals of the entire team as well as the personal development of the associates. The Society brings together students who wish to expand their knowledge about Geophysics. SEG Student Chapter allow its membets to keep up to date with the latest geosciences trends as well as gain from research projects and many other activities.
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
SEG Student Chapter Cracow (formaly AGH University of Science and Technology Geophysical Society) is a part of the Student Geophysical Society GEOFON at the Faculty of Geology, Geophysics and Environmental Protection at AGH University of Science and Technology in Cracow, Poland. The Society brings together students who wish to expand their knowledge about geophysical methods. Not only theoretical studies are performed, but also many field works. What is more, results of both are presented at international and national student presentation sessions. We are forming student chapters for such organizations as Society of Exploration Geophysicists, European Association of Geoscientists and Engineers and American Association of Petroleum Geologists.
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
- Information Technology > Knowledge Management (0.43)
- Information Technology > Communications > Collaboration (0.43)
Pawel Peczak received an M.S. from Jagiellonian University in Kraków, Poland, and a Ph.D. from the University of Georgia, both in physics. Since 1990, he has been employed at Corporate Strategic Research, Exxon Research and Engineering Company (now ExxonMobil), overseeing projects in upstream and downstream areas requiring expertise in high-performance scientific computing and simulational techniques. Peczak's research interest is in statistical mechanics of mixtures and thermodynamics of heavy oils and asphaltenes.
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
Malgorzata Peszynska received an M.Sc (1986) in applied mathematics from Warsaw University of Technology in Poland and a Ph.D. (1992) in mathematics from the University of Augsburg in Germany. She held research and teaching positions at the Polish Academy of Sciences, Warsaw University of Technology, Purdue University, and the University of Texas at Austin. Currently she is at the Department of Mathematics, Oregon State University. Her research interests are in mathematical and numerical analysis of various multiscale and coupled problems in flow and transport in porous media as well as in large-scale computing issues related to the implementation of relevant algorithms. Susan E. Minkoff, Charles Mike Stone, Steven L.Bryant, and Malgorzata Peszynska received 2004 Honorable Mention (Geophysics) for their paper Coupled geomechanics and flow simulation for time-lapse seismic modeling.[2]
- Europe > Poland > Masovia Province > Warsaw (0.58)
- North America > United States > Texas > Travis County > Austin (0.31)
- Geophysics > Time-Lapse Surveying > Time-Lapse Seismic Surveying (1.00)
- Geophysics > Seismic Surveying (1.00)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
Małgorzata Chmiel holds a MSc degree in Engineering Physics from AGH University of Science and Technology (2012) in Cracow, Poland and in Applied Geophysics from University Pierre and Marie Curie (2013) in Paris, France. She received a PhD (2017) in Geophysics from the University Grenoble Alpes in Grenoble, France. Her PhD was financed by CGG and focused on exploring interferometry and beamforming methods on dense arrays. In 2017, she began working as a research geophysicist in Sisprobe, a startup based at the Institute of Earth Sciences in Grenoble, France. Małgorzata's research interests are in seismic wave interferometry, beamforming, seismic event detection and localization, and dense array processing in active and passive configurations.
- Europe > France > Auvergne-Rhône-Alpes > Isère > Grenoble (0.90)
- Europe > Poland > Lesser Poland Province > Kraków (0.33)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
Arthur Ingalls has been a researcher at Conductron Corporation since 1961 and is now the head of its Optical Research and Engineering Department. A. L. Ingalls studied electrical engineering at Rensselaer Polytechnic Institute from 1929 to 1930. He then transferred to the University of Rochester where he majored in Optics obtaining his B.S. degree in 1932. Since that time he has worked with Corning Glass Works, Ansco Corporation, Bausch and Lomb Optical Company, and Poland Industries, Inc., where he was Vice-President of Engineering and Development. In 1956, he was employed at the University of Michigan Institute of Science and Technology as a Research Engineer. In 1961, Mr. Ingalls joined Conductron Corporation, where is now head of the Optical Research and Engineering Department.
- North America > United States > Michigan (0.29)
- Europe > Poland (0.29)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
Artificial Neural Network Based Facies Modeling for Multi-Layer Injection Fall-Off Transient Analysis
Kumar, Arvind (SLB) | Rajput, Saunil (SLB) | Nukala, Poorna Venkata Sai Teja (SLB) | Wydiabhakti, Tety Benedicta (SLB) | Trevisan, Eduardo Antonio (SLB) | Ojha, Keka (Indian Institute of Technology (ISM) Dhanbad)
Abstract Injectivity plays a key role in determining the efficiency of water injection programs. The Injection Fall-off pressure transient analysis is performed to derive injectivity. However, in thin laminated sands, a homogenous model gives average value. For such cases, a more robust multi-layer reservoir modeling approach is required. This paper showcases an integrated workflow utilizing the artificial neural network assisted petrophysical facies modeling for layer determination and reservoir model creation, resulting in higher vertical resolution of injectivity values in heterogenous sand bodies. The workflow integrates basic and advanced petrophysical logs like lithology log, spectroscopy log, nuclear magnetic resonance logs and elemental analysis logs with the borehole image logs. Artificial Neural Network was used to perform rock typing and facies models by generating the hydraulic flow units and derive the reservoir quality (RQ). Multiple layers of reservoir models were defined based on integrating RQ with the completion quality (CQ). These layered reservoir models were used to perform the modeling and regression in the injection fall-off pressure transient analysis. This approach reduced the time spent on modeling and regression by 30% for a 4-layer reservoir model, resulting in a better match between acquired data and model data. Using the multi-layer reservoir modeling has increased the vertical resolution of injection fall-off analysis at the same time reducing the time spent on manual modeling and regression work. In heterogenous and thin laminated sand bodies, a homogenous reservoir model provides a single value of permeability and permeability anisotropy. For such cases, it is required to have multiple values of permeability and permeability anisotropy for a better model match. These multiple values are also fed to the numerical reservoir model to check the improvement in injection efficiency. This paper showcases a unique amalgamation of petrophysical and injection fall-off transient analysis methods for improved reservoir model as well as increased vertical resolution of key reservoir characterization parameters like permeability, skin, permeability anisotropy. The workflow is useful for heterogenous sand bodies and enhanced oil recovery modeling and projects.
- Europe > Poland (0.46)
- North America > United States > Texas (0.29)
- Europe > Norway (0.28)
- Geophysics > Seismic Surveying (1.00)
- Geophysics > Borehole Geophysics (1.00)
- Europe > Poland > Lublin Basin (0.99)
- Europe > Norway > North Sea > Central North Sea > South Viking Graben > PL 046 > Block 15/9 > Volve Field > Shetland Group > Åsgard Formation (0.99)
- Europe > Norway > North Sea > Central North Sea > South Viking Graben > PL 046 > Block 15/9 > Volve Field > Shetland Group > Svarte Formation (0.99)
- (18 more...)
Novel Method of Multi-Face Destress Blasting Efficiency Assessment
Fulawka, Krzysztof (KGHM CUPRUM Ltd. R&D Centre, Poland ) | Mertuszka, Piotr (KGHM CUPRUM Ltd. R&D Centre, Poland ) | Szumny, Marcin (KGHM CUPRUM Ltd. R&D Centre, Poland ) | Stolecki, Lech (KGHM CUPRUM Ltd. R&D Centre, Poland ) | Jaskiewicz-Proc, Izabela (KGHM CUPRUM Ltd. R&D Centre, Poland )
ABSTRACT: In this paper, the newly formulated solution of multi-face destress blasting efficiency assessment is presented. The developed method is relevant for near and far-field effect evaluation and is improved by the duration, amplitude, and frequency characteristics of blast-induced seismic waves. The proposed approach is based on the advanced analyses of the waveforms generated by blasting, ground motion prediction equations and data describing the technological parameters of blasting in terms of the amount of explosives, delay times, and spatial location of mining faces. The proposed solution was validated in deep underground mines in Poland in which the room-and-pillar mining method is applied. Based on the performed analysis, it is shown that a new method may be used as an element of rockburst hazard control in underground mines. However, the developed method may also be successfully implemented in other engineering practices, including open pits and quarries. INTRODUCTION According to recent studies, destress blasting is the most effective solution in terms of rock mass preconditioning (Konicek et al. 2011 and Vennes & Mitri 2017). The main goals of destress blasting are: • generating cracks of the rock mass in the vicinity of blasting operations (Kan et al. 2022); • reduction of friction on the slip surface of faults and cracks existing in the rock mass, which may trigger a mining tremor (Fuławka et al. 2022). Therefore, regardless of the actual effect, the main purpose of destress blasting is the preconditioning of the rock mass, preventing further accumulation of energy and, in exceptional cases, causing a seismic event in the vicinity of the mining field while the mining crew is outside an endangered area. Such technique has been practiced and developed for years in Polish underground copper mines, where explosives are used for both ore extraction and destressing purposes. Because deposit in these mines is excavated with the use of a room-and-pillar mining system, the destressing impulse is generated by the simultaneous firing of explosives in a dozen or several dozens of mining faces within one mining panel. Due to the scale of mining, which can be described by about 500-700 faces and over 60 tons of explosives detonated every day, this method is considered the most effective tool for active rockburst prevention in the conditions of Polish copper mines (Caputa & Rudziński 2019). However, it should be noted that in order to ensure maximum efficiency of blasting works, it is necessary to carry out the periodical evaluation of blasting efficiency, which is the basis for further improvement. Still, until recently there was no avaliable method for reliable multi-face destress blasting efficiency evaluation.Within this paper, a novel method of destress blasting efficiency evaluation is presented. This method allows to analyse if the seismic impulse generated by the number of simultaneously detonated faces is sufficient considering the number of faces, amount of explosives, the distance between the area of interest and subsequent mining faces, and blasting patterns applied during the firing of mining faces. Moreover, seismic effects with the use of a novel method may be analysed not only in terms of amplitude distribution but also including the duration of the vibrations and their dominant frequency, which is definitely an innovative approach.
- Overview > Innovation (0.54)
- Research Report (0.34)
- Geology > Structural Geology > Tectonics > Plate Tectonics > Earthquake (0.47)
- Geology > Geological Subdiscipline > Geomechanics (0.47)
- Geology > Mineral > Native Element Mineral > Copper (0.45)
- Materials > Metals & Mining (1.00)
- Energy > Oil & Gas > Upstream (1.00)