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Surface geochemical method is an important technique in petroleum exploration. The purpose of this method is to record and analyze the distribution of micro-concentration of gaseous hydrocarbons, which migrate from subsurface accumulations to the near-surface zone. The paper presents the results of surface geochemical survey carried out in the area of the Mo?odycz gas deposit of the Carpathian Foredeep. A soil-gas geochemical survey was carried out along the six sampling lines corresponding to the seismic section....

In this article, mathematical and full-scale modeling of the application of the resistive control method based on the phase-metric principle of the controlling of the growth of suffosion processes is considered. The causes and stages of the growth of suffosion processes are given. Modeling of suffosion processes is carried out on the basis of the geoelectrical model of a spherical cavity of a covered thickness of soil sediments. The description is given of the experimental setup for modeling the suffosion processe...

The concepts of danger, uncertainty and risk are often used intuitively and inaccurately not only in common language but also in the media where it is unfortunately commonplace and last but not least in scientific circles. The clan defines uncertainty, danger and risk, and graphically visualises the aspects it encompasses. The graph is defined by two dimensions, namely probability and objectivity. The notion of danger is the least unequivocal. This is an object property that is a threat. Uncertainty was mathematic...

Explosive risk occurs in all activities involving flammable substances in the form of gases, vapors, mists or dusts which, in mixture with air, can generate an explosive atmosphere. As explosions can cause human losses and huge material damage, the assessment of the explosion risk and the establishment of appropriate measures to reduce it to acceptable levels according to the standards and standards in force is of particular importance for the safety and health of people and goods.There is no yet a recognized meth...

The system of training people in the area of population protection and crisis management consists of two basic levels of education. The first level includes professional qualification education through the acquisition of a qualification or higher qualification of higher professional education, higher education in a bachelor or master study program or in higher study programs. Second level focus on further vocational education is intended for target groups of workers with a focus on the deepening of the skills requ...

The paper presents the hazards related to invasive plant species in the area of the Mszana community, located in the Silesian Voivodeship in southern Poland. The community is of an industrial-agricultural nature. Its surface area is approx. 31.3 km?. Settlements are focused along the main roads and transportation routes. Influence of mining activity is clearly visible in the area in the form of coal waste dumping grounds, subsidence troughs and fens. Approx. 70% of its surface is occupied by arable lands, while 7%...

Until now, in Romania, approaches to noise and air pollution are strictly different. For example, the noise pollution assessment by mathematical modeling is the approach by law. This is valid both in the preliminary stage of noise mapping and at the final stage of the action plan of noise abatement measures applicable according the Directive 2002/49 /EU [1]. For air quality assessment, a different approach is legislated. In this case, a monitoring -based analysis of indices the specified is carried out and the act...

The main aim of our paper is to analyze and make proposals on the effective management of individual items that have a significant impact on elimination of industrial risks. Attention is paid to the issue of management of industrial risks in the industrial enterprises in Slovakia. To obtain the necessary data, we draw information from internal materials of enterprises. For management, it is important to know what risks it could negatively affect them. Identification, quantification of impacts and subsequent propos...

The purpose of this paper is to present an analysis for Romania?s energetic strategy designed for 2016-2030 according to the EU direction. Energetic security for a country is the most important after the IT sector, and also the knowledge to administrate key energetic resources. Import/ export of energetic resources is the question of how Romania will decide to develop or not its natural resources. The methodology will be a SWOT analysis, a personal point of view about the strategy. The environmental impact also is...

The main purpose of this study is to highlight the actual state of energy production and consumption in Romania and to emphasize where there is potential for either reducing the greenhouse gas emissions by using more efficient heating and cooling systems for buildings or reducing the greenhouse gas emissions by using less fossil fuels and more renewable energy sources that can be tapped in Romania. In Romania despite a good thermal insulation degree for newly constructed buildings in the past 5-10 years there is s...

The paper examines the waste management issues in the villages annexed to administrative-territorial units of the Romanian cities which have been frequently neglected by urban waste operators. The lack of waste collection services in such peri-urban communities favored the illegal waste disposal practices particularly prior to EU accession. The extension of waste collection services from main cities to such areas is compulsory in order to mitigate the environmental risks and the public health threats. The paper es...

The publication attempts to unify the scope of reclamation works in the agricultural, forest and aquatic directions. For the analysis of the works scope, three phases of reclamation were adopted: preliminary, basic (technical) and detailed (biological). Preliminary reclamation consists in the analysis of factors affecting the selection of a reclamation direction, establishing the direction of reclamation and the development of design-estimate documentation. Basic (technical) reclamation consists in the shaping of ...

The paper presents solutions for the sealing of the foundation plate inside a compliant landfill, the conditions necessary for the selection of certain materials in execution. Geometry of landfills (shape and dimensions in horizontal and vertical planes) often follows the site's orography, is influenced by the hydrogeology of the underground profile (groundwater level, inadequate or rocky land and difficulties with excavation), stability in the slope for the maximum possible weight (also related to the angle of se...

Interpretation of climate change and deglaciation events from palaeovarves requires a complete understanding of varve composition, depositional environments and the non-climatic events that may influence varve thickness record. We examined a Baltic Ice Lake varve-thickness chronology from western Estonia, eastern Baltic Sea, composed of 26 individual varve series and spanning 584 years of Late Weichselian deglaciation. The direction (azimuth) to the increasing seasonal layer thickness and correlation between the w...

Study case is river Maciovita, Caras Severin County. Sediment transport model is applicated different both in terms of time and space scale, study objectives, required accuracy, allocated resources, background of the study team etc. Sediment transport modelling, have necessity to know all characteristics of the sediment. Therefore, it is recommended to collect a number of bed sediment grap from geological study or from examples. These examples analyzed terms of grain size distribution. To solve theoretical problem...

Since ancient times, the coastal areas were natural habitats that host a wide variety of fauna and flora species and which, from an anthropological point of view, are the most populated areas of the planet. At the same time, these areas, which include deltas, lagoons and marshlands, are particularly vulnerable to the effects of global change (climate modification, sea level rise and fluctuation of sediment input) that may be triggered by anthropogenic activities (global warming due to greenhouse gases produced dur...

The paper presents accelerations, response spectra and spectral ratio for two tower-type buildings, one in Southern part of Bucharest, T1, at ~160 km from the epicenter zone, and other, T2, near the epicenter zone, Vrancea. These seismic characteristics are all from recorded earthquakes triggered in the above mentioned area. 3 triaxial seismic accelerometers were used on 3 levels at each building. The accelerations recorded on the analyzed structures were a result of Vrancea medium magnitude earthquakes between 20...

The complicated geodynamic situation occurred as the result of the intensive exploitation of Verkhnekamskoe potash deposit (VKMKS) was complexified by induced accidents in 1995, 2007 and 2014. Most of the city of Berezniki is located above the minefield of the BKPRU-1 mine. The exploitation of the potash since 1995 has been accompanied by continuous seismic monitoring, its data are used both for operational control and forecast purposes. Starting from the part of the mine SKRU-2 in 1995 the system has been expande...

Despite the existence of many technologies allowing for recovery of coal combustion products (CCPs), they still remain a product that is problematic enough, with their industrial use in the world lying in the range 40-60%. The remaining CCPs produced in the energy industry end up in landfills or are stored, thus losing their property. One of the main directions of CCPs recovery has been, for many years, the underground mining industry, where they are used, among others, as fillings in mining excavations, component...

In manufacturing conditions marking of the parts is used many times. Marking is necessary for storage, transportation, in keeping records in plants or in the exploitation by the customers. In each situation mark given to part is necessary for identification, verification of the position correctness, etc. Marking is often carrying on by bonding the labels or painting. These methods, even though in common practice have some disadvantages: the label can be broken or destroyed and paintings can be scraped off. Sometim...

Mari El is one of the most ecologically clean areas of Russia. The local woods are famous throughout Russia and is the largest forest on the Volga river, which contain large amounts of wood and at the same time, every year increasing its use for recreation. Therefore, recreational use should pay a lot of attention. This paper examines the state of objects in the mass use of forest resources for recreational purposes on the territory of the coastal zone of suburban lakes. Conducted socio-environmental assessment at...

Among the energy sources alternative to fossil fuels, renewable energy sources such as solar garner the public?s attention, as they are available and have fewer adverse effects on the environment than do fossil fuels. Solar heating systems are a type of renewable energy technology that has been increasingly used in the past decade across Europe to provide heating, air-conditioning, and domestic hot water (DHW) for buildings. This paper provides a briefly review of the available heating technologies assisted by sol...

Environmental risks in waterstreams are not inconsiderable factor affecting the ecosystem and humans as part of the whole. As part of a comprehensive EU wide efforts to protect water bodies in Slovakia was adaptation of Directive 2000/60/EC which is establishing a framework for Community action in the field of water policy and water management. The core of the paper is an analysis of potential environmental risks in river basin Horn?d due to flooding. The aim is to identify possible sources of contamination, which...

The aim of this article is to identify and assess the sources of risk in the mining production planning process in terms of quantity and value in a hard coal mine. To implement this goal, the first part of this paper identifies sources of risk, the second part in turn describes preventative actions that the mine should undertake to minimize the risk during the mining production planning. The article makes use of deduction, mining production processes analysis and literature on mining economics. The internal source...

Rural areas are antipodes to urbanized and industrialized territories. At the same time, rural areas are obligatory components of the sustainable environment and economic development of countries and regions. The rural area mostly depends on environmental factors. Ameliorative factors, i.e. the suitability for improving the performance characteristics of the area, have the leading role as well. These factors effect on the development of agricultural production functions (specialization) and on the rural areas soci...

The pore space is an important part of a rock that affects its mechanical and petrophysical properties. Among numerous methods for pore space characterization X-ray computed microtomography (?CT) is one that provides information on the spatial distribution of pores within rocks. Followed by image processing and analysis, detailed information on orientation and shape of voids can be obtained. Hence, it is a good method for microstructural studies on the porous space. The aim of this paper is to present spatial vari...

X-ray microtomography (?CT) has been increasingly popular among geoscientists interested in reservoir rocks? pore space, as it enables studying much more parameters than solely the porosity. Because carbonate rocks can be dramatically complex with respect to their permeability, porosity, and mineral composition ? they need advanced tools like ?CT to be studied in details. Petrographically and petrophysically variable carbonate sample withdrawn from the Bro?sko Reef, West Poland was examined by means of the ?CT-bas...

Underground mines from Jiu Valley have as objective the extraction of hard coal, used for energetic purposes. Exploitation activities are associated with the extraction of significant amounts of sterile, derived from opening and preparing works, but also from coal processing activity. The sterile rocks are stored in waste dumps of different sizes, which must undergo periodic stability analysis. This paper aims to estimate waste dumps stability, by using fuzzy theory, the results of such an analysis being of qualit...

Recent studies emphasized rather skeptical views shared by the Romanian stakeholders with regard to the public recognition of the central role of soil resources for assuring food security as well as the fundamental role that soils play in climate change adaptation. As stakeholder views are particularly important for understanding their values and needs, the paper aims to explore the perceptions with regard to soil quality, soil threats as well as the existence and effectives of the national and European policies o...

For a long time, various researches have been realized about the presence and distribution of Ag, Au, Pb, Zn and their distributions research in different horizons, but there are few researches that are available with statistical analysis related to their distribution which gives a better information about their distribution. Research on the method of distribution by statistical methods are quite accurate methods and give us a clear presentation of the way these elements are distributed in the Trepca Mining. There...

The research and development activity is becoming increasingly important in the current economic context. The emergences of new products, increasing the share of a saturated market or even entering a new market are now based on a research and development activity. The amounts allocated for this activity must be in line with the objectives set by manufacturers in the building materials industry in Europe. For them it is very important to increase their turnover, but they also seek to increase their notoriety, in ad...

Since 2017, the Russian government has begun to pay more attention to digital technologies in agriculture. The Ministry of Agriculture of the Russian Federation proposed the creation of a state subprogram "Digital Agriculture", in addition, an analytical center was created within the Ministry to monitor the state of agricultural land. Intensive introduction of information technologies in agriculture, promises productivity growth, investment attractiveness of the industry, improving the quality of products with a s...

The present study seeks to relate the focal mechanisms of moderate earthquakes, regional tectonics and the tectonic stress distribution, in Albania. We have analyzed 33 moderate earthquakes (2.2 ? MW ? 4.9) recorded in the time period 2013-2015, by the Albanian broadband (BB) seismic network. Events were located within the upper crust, in the depth range 0 ? h ? 17 km, showing the present day active tectonics. Formal stress inversion of the focal mechanism data, support the variation in the direction of the actual...

The North Dobrogean Orogen is located between the Sf Gheorghe fault to the north and Peceneaga -Camena to the south. Structurally, it involves four tectonic units with NW-SE direction: M?cin unit, Niculi?el unit, Consul unit and Tulcea unit. The M?cin unit comprise a large variety of rocks assemblage, including sedimentary rocks, metamorphic rocks and igneous rocks. All this rocks assemblage belongs to several subunits developed on quasi-parallel NW-SE direction. M?cin unit has been interpreted as nappe folded ove...

The purpose of the article is to assess the regional structure of the upper Triassic - lower Cretaceous sediments (Mulussa F and Rutbah reservoirs), which serve as an important targets for hydrocarbons production and exploration to the center and Middle East of Syria. The upper Triassic - lower Cretaceous sediments are approximately of 800 m thickness consist mainly of floodplain clays interbedded with medium to fine grained fluvial sandstones. In addition, there are dolomites and clay dolomites present in the low...

The paper deals with the implementation of modern techniques and methods of surveillance in closed mining sites, for monitoring, assessing the real state and forecasting possible changes to provide an integrated picture of the state of the natural environment. The proposed system is designed as a tool with practical applicability in the decision making process of ecological restoration strategies of closed mining sites. Closed / abandoned mines have an acute need to deploy a sensor network due to their lack of wor...

Metal-based catalysts have shown promising applications and effects in different thermal enhanced oil recovery (THEOR) to improve oil recovery from oil reservoirs. Also, catalysts were chosen due to their exclusive properties, such as high surface area to volume ratio, high degree of dispersion in porous media and high catalytic activity. This study is aimed at developing a catalytic-enhanced oil recovery for heavy crude oil using in-situ combustion method in the presence of catalyst. In order to that, we synthesi...

The monitoring data of groundwater quality in a vast area in north central Bulgaria indicates concentration of hexavalent chromium above the maximum contaminant level set in Directive 98/83/EO. Hexavalent chromium contamination of the groundwater is of a great concern, since this groundwater is the main drinking water source for more than 25 small villages in the region. Field tests were conducted in order to determine the mineral and chemical composition of soils and rocks near four of the villages. Exploratory d...

In industrial plants many types of combustible dusts are generated, processed, handled and stored. When ignited, they can burn rapidly and with a considerable explosion force, when mixed with air in proper proportions. This is the reason why adequate precautions have to be adopted, to ensure that all equipment and protective systems are appropriately protected so that the security level from these installations to be high. The establishment and implementation of protection measures is primarily aimed at preventing...

In special applications it is necessary to correlate the obtained data about the state of a process in which the Joule effect is involved by passing an electric current through a conductive material. The multiplier effect due to increased resistance with temperature may require particular attention in monitoring the process, thus requiring automatic decision-making processes so that the modification of the conductive material properties does not affect the entire chain of the process. We propose a system for monit...

The need to provide the highest level of protection in the industrial spaces with explosion danger led, on the one hand, to the development of new types of dissipative textile materials with protective role against static electricity and, on the other hand, to the development of test methods of these materials for the purpose of assessing compliance with the requirements specific to prevent the initiation of explosive atmospheres. The assessment of the compliance of the dissipative textile materials used at the ma...

In order to reduce the negative impact of PVC on the environment, it is becoming popular to produce composite materials based on PVC filled with various natural fillers. For example, bentonite as filler in a polymer matrix can absorb volatile toxic components and accelerate the degradation of PVC. Also in this paper, natural polysaccharides pectin and starch are considered as fillers. Pectin and starch are also capable of accelerating biodegradation of PVC. Nevertheless, the thermal stability of the resulting poly...

The impact of the extreme atmospheric conditions in the context of climate changes is a topic often studied at a global scale. The aim of the presented work is to analysis the extreme wind condition at a much smaller scale represented by the Black Sea area. For this perspective, the presented paper presents a comprehensive picture of the extreme atmospheric conditions along the coastlines of Romania, Bulgaria, Turkey, Georgia, Russia and Ukraine. More precisely, eight geographical locations were analyzed, together...

One of the main mechanisms that determine the deterioration of salt stability is the occurring of fractures as a result of the influence of mining pressure. Aspects of rock salt cracking can be observed both in situ and laboratory tests on rock samples collected from the mining works. Cracking parameters are determined for different conditions: age pillars, excavation technology, how has the bearing size, depth of mining and other random aspects. Geomechanical assessment of underground workings made in rock salt m...

Derived from the results of experimental modeling of physicochemical processes of solvent extraction of extra-viscous oil (EVO) from the reservoir model, the composition, which provides a 96% extraction of the oil from Ashal?chinskoe deposit, has been chosen. The composition represents the mixture of large-capacity petrochemical products. It includes the fraction of light aliphatic hydrocarbons, ethylbenzene distillation residue, and the mixture of aromatic hydrocarbons at a 0.50:0.25:0.25 ratio. The latter inhibi...

Open cast coal mining is inevitably accompanied by a significant technological interference in the environment. This requires the due (during the technological process) restoration of the disrupted balance and the forming of a new environment consistent with the ecological requirements. Environment protection is one of the priority tasks for Mini Maritsa Iztok EAD. The environment protection legislation in force is strictly observed at the Company. The use of water to support mining operations, and waste water rep...

The overall objectives for business sustainability have become increasingly more important for companies, and for stakeholders of the company. Socially responsible companies must be involved in creating and developing sustainable businesses, which gives them competitive advantages and added value. The theoretical frame of the paper is based on the model of value chain. Each element of the chain explores the Corporate Social Responsibility issues, adopted/designed by each functional department of the companies, ori...

The European Commission is investing in EU industry for a modern, clean and fair economy. Innovation is a key factor in the competitiveness of European industry. Following the European experience, the aim of the article is to identify sustainable innovative directions for the development of the oil and gas sector in the context of global trends. The article shows that the period from 2014 to the present time is characterized by the fact that in a situation of a drastic decline in oil prices, the world oil and gas ...

In the context of the increasing concern on controlling carbon emissions, global warming and in order to reduce energy consumption, buildings design must take into account the criteria of energy efficiency and the use of local renewable resources imposed by EU requirements for 2020. Thermal insulating materials based on natural fibers as building materials are increasingly being studied for their low environmental impact and availability. The present paper reviews the state of the art of research on the influence ...

Formation of gas hydrates is a problem in the petroleum industry where the gas hydrates are responsible for the blockage of flow lines, valves and well heads, thereby causing great loss of production and other severe safety hazards to the oil and gas industry. This topic is the most challenging subject in flow assurance problems in oil and gas industry. Kinetic hydrate inhibitors (KHIs) are water-soluble polymers that are used to prevent gas hydrate blockages and they have been used in the field successfully. In t...