Validation of a synoptic solar wind model

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

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

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

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

New records to the flora of Uzbekistan (Middle Asia)

The Republic of Uzbekistan is a Central Asian country with rich native flora. The territory belongs to the Irano-Turanian region in the Ancient Mediterranean floristic subkingdom of Holarctic. The flora of Uzbekistan accounts over 4300 species of vascular plants including large numbers of endemic species, but the check-list is still incomplete. Presented here ten new records to the flora of Uzbekistan, were found during the field studies and examination of herbarium collections preserved at TASH