Validation of a synoptic solar wind model

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/94963/1/jgra19149.pd

Detecting active faults and tracing fractured zones using dem processing

© 2016, International Journal of Pharmacy and Technology. All Rights reserved.This article describes the technique and results of digital DEM digital processing conducted for the territory of a small oilfield. The study aims to obtain information on rock mass natural fracturing and fluid dynamics. Although only one particular case is described here, the proposed technique is universal and can be applied to any flat area with developed erosional system (within the platforms). Results of DEM digital processing in conjunction with oil content data, geochemical sampling and high-precision gravimetry were used to discover zones of excessive fracturing and fluid dynamic activity in sedimentary cover. Also, block model of the oilfield was constructed, and reconstruction of geodynamic processes in the active microblocks junction zones was carried out

Application of GIS in interpretation of the results of multistage hydraulic fracturing monitoring by surface microseismic method

Currently, the problem of interpretation of microseismic monitoring data is a critical task. Along with the improvement of field survey technologies and data processing, as well as with the development of realtime hydraulic fracturing monitoring by microseismic methods there are several problems to solve, such as objectivity of geological data, the data reference with the local and regional stress-strain state of the rock massif. The aim of this work is the post-processing of surface microseismic monitoring results with the use of geographic information systems. An analytical basis of data processing is spatial statistics set of tools of ArcGIS ESRI software, which is traditionally used to identify the patterns in the spatial distribution of any point events containing georeference component. The paper shows an approach to process an interpretation in complex situations, such as fracking pump failure, when the cloud of microseismic events shows a random distribution. Main attention in the work was paid for geological interpretation of the results obtained and their relation with the results of regional stress-strain state investigation. Significant convergence is detected for the orientation of natural fractures defined by surface seismic surveys, microseismic monitoring of hydraulic fracture propagation and regional lineament analysis basing on satellite images

Integration of the seismic and geochemistry data to evaluate hydrocarbon potential of the carbonate reservoirs in Tatarstan, Russia

© SGEM2018. The article describes the results of the integration of the geochemical and seismic data on one of the oilfields of Tatarstan Republic in Russian Federation. The complex geological structure of the oil bearing formations of Carboniferous age results in misinterpretation of the geophysical data and drilling of the dry wells. Some potential structural oil traps find from the seismic data interpretation are water bearing. To avoid nonproductive drilling authors studied seismic faults and their connection with the geochemical anomalies. On the first step the faults in the potential oil-bearing formation of the Tournaisian age were traced in the 2D seismic lines. Then the geochemical parameter (propane concentration in the soils) was studied in 90 observation points. The gas anomaly represented by propane is indicative, because the biochemical genesis of methane homologues is practically excluded, and their content in coal is insignificant. That means that the increased content of propane is connected with the presence of hydrocarbons. It appears that in the presents of oil in the formation geochemical anomaly and the fault in the Tournaisian formation are coincide. That can be used as additional source of information to avoid nonproductive drilling

Qualitative assessment of the medieval fortifications condition with the use of remote sensing data (Republic of Tatarstan)

© 2017 SPIE. Archaeological monuments are an essential part of the cultural landscape. According to UNESCO directive, the "cultural landscape" is understood not simply as a result of joint creativity of man and nature, but as a purposefully formed natural and cultural territorial complex, which has structural, functional integrity, developing in specific physical and geographical, cultural and historical conditions. This article discusses the modern condition of the archaeological monuments of the Republic of Tatarstan, as a manmade part of the cultural landscape. Fortified settlements, with the system of defensive fortifications, were selected as the objects of study, as they are easily identified by remote sensing data. Identification and evaluation of monuments destruction risks is a priority in the study of medieval settlements. Due to the fact, that most of monuments is located on the small rivers banks, the first task of our study was to assess the risk of their destruction by natural processes. The second objective was to evaluate the role of the human factor in archaeological sites destruction. One of the main used methods is archival and modern remote sensing data analysis that also made able to correct the form of study settlements in comparison with existing plans, as well their size and location in the landscape. The results of research will help to identify trends in the monuments state and quantify the risks of their destruction

Study of anthropogenic and natural impacts on archaeological sites of the Volga Bulgaria period (Republic of Tatarstan) using remote sensing data

© 2016 SPIE.In this paper we consider the possibility of using remote sensing data for determining various negative factors affecting archaeological objects condition on the territory of the Republic of Tatarstan. Fortified settlements, with the system of defensive fortifications, were selected as the objects of study, as they are easily identified by remote sensing data. In our view, the analysis of medieval Volga Bulgars (X-XIII centuries A.D.), the most common in the territory of the Republic of Tatarstan, has the highest priority. The first task by using remote sensing was to obtain actual data on the current condition of archaeological monuments located on the Kuibyshev reservoir shore, where the threat of destruction is maximized. Due to the fact, that most of the Volga-Bulgaria settlements, is located on the small rivers banks, the second task was geomorphological description of monuments placement in order to assess the risk of their destruction by natural processes. Third objective was to evaluate the role of the human factor in archaeological sites destruction. Ancient settlements under different types of negative impact were selected for the study. Deciphering of multitemporal remote sensing data allowed to assess the objects condition and to predict the risk of further damage. Additionally, it made able to correct the form of the Bulgars hillforts in comparison with existing plans, as well their size and location in the landscape, to restore the original appearance of destroyed fortified settlements, to determine precise coordinates for the further use of these data in the archaeological geographic information systems

Силовые нагрузки, действующие в кинематических парах механизма изменения базы трактора

Both longitudinal and transverse stability as well as maneuverability and controllability are important parameters of the tractor for efficient processing of land areas in mountainous and foothill areas, which surface has significant irregularities, and are often located under large bias. It is known that in order to ensure the stability of the tractor, its base must be maximum, and to ensure a minimum turning radius – minimum. However, the design used in the agro-industrial complex of the Republic of Uzbekistan 4-wheel universal tractors does not provide a mechanism for changing the wheelbase. In this regard, SDB "Tractor" designed 4-wheeled universal tractor, equipped with a special mechanism that changes the base of the tractor by 670 mm. It is showed that the reliability of the mechanism depends primarily on the strength of the parts, which account for the maximum power load. (Purpose of the study) We investigate the force loads acting in kinematic pairs of the alternation mechanism of the tractor base. (Materials and methods) The possibility of changing the parameters of the tractor base is showed on the example of the 3D model. To calculate the parameters of the designed tractor came from the figures: weight per axle; the dimensions of the hinge parallelogram arrangement; the radius at which the moving end of the rod of the hydraulic cylinder; a rolling resistance of the front wheels on the supporting surface of the concrete cover, etc. (Results and discussion) Power loads in kinematic pairs of the tractor base change mechanism were determined on the basis of generally accepted methods of the theory of mechanisms and machines with the use of structural analysis of the mechanism. The magnitude of the forces acting at each kinematic pair of mechanism for database changes, calculated by the graphical-analytical method on the basis of the law of statics using conditions of equilibrium. (Conclusions) It is found that the values of forces acting in the hinges of the mechanism of changing the base of the tractor range from 8816.25 H to 93255.82 H. On the basis of the calculations presented the following results: the greatest efforts in the links of the mechanism of change of the tractor base act in their longitudinal direction, which should be taken into account when one determines the parameters of the mechanism of change of the tractor base and the calculations of parts for strength.Для эффективной обработки земельных площадей в условиях горных и предгорных районов, поверхность которых имеет значительные неровности и часто расположена под большим уклоном, важное значение имеют такие параметры трактора, как продольная и поперечная устойчивость, а также маневренность и управляемость. Известно, что для обеспечения устойчивости движения трактора его база должна быть максимальной, а для обеспечения минимального радиуса поворота – минимальной. Однако в конструкции используемых в агропромышленном комплексе Республики Узбекистан 4-колесных универсально-пропашных тракторов механизм изменения колесной базы не предусмотрен. В связи с этим в СКБ «Трактор» разработан 4-колесный универсально-пропашной трактор, снабженный специальным механизмом, обеспечивающим изменение базы трактора на 670 мм. Показали, что надежность работы механизма зависит прежде всего от прочности деталей, на которые приходится максимальная силовая нагрузка. (Цель исследования) Исследовать силовые нагрузки, действующие в кинематических парах механизма изменения базы трактора. (Материалы и методы) На примере 3D-модели показали возможность изменения параметров базы трактора. Для расчета параметров проектируемого трактора исходили из показателей: вес, приходящийся на переднюю ось; размеры шарнирного параллелограмма по компоновке; радиус, по которому двигался конец штока  гидроцилиндра; коэффициент сопротивления перекатыванию передних колес на опорной поверхности бетонного покрытия и др. (Результаты и обсуждение) Силовые нагрузки в кинематических парах механизма изменения базы трактора определили на основе общепринятых методик теории механизмов и машин с применением структурногоанализа механизма. Величину сил, действующих в каждой кинематической паре механизма изменения базы, рассчитали графоаналитическим методом на основе закона статики с использованием условий равновесия. (Выводы) Установили, что значения сил, действующих в шарнирах механизма изменения базы трактора, колеблются в диапазоне от 8816,25 Н до 93255,82 Н. На основании проведенных расчетов представили следующие результаты: наи-большие усилия в звеньях механизма изменения базы трактора действуют в их продольном направлении, что следует учитывать при определении параметров механизма изменения базы трактора и расчетах деталей на прочност