Oil and gas bearing capacity of Paleocene carbonate formations of the southern oil and gas bearing region

According to the results of exploration work the industrial gas content of Palaeocene formation in the southern oil and gas bearing region is found within the western regions of plain Crimea and the northwest shelf of the Black Sea. Favorable conditions for non-anticlinal traps were also found associated primarily with cutting-in of collectors. 64.5 million toe in the off-shore and 21.5 million toe of hydrocarbons on land remain unexplored

PSYCHOLOGICAL PECULIARITIES OF PROFESSIONAL RESPONSIBILITY OF FUTURE SPECIALISTS OF THE CIVIL DEFENCE SERVICE

The essence of the concept of “responsibility” and “professional responsibility of a rescuer” is revealed in the article; the psychological foundations of the development of responsible behavior are analyzed; the main ways and means that ensure the success of the process of the responsibility formation, the main pedagogical conditions for improving educational activities and the formation of responsibility among the cadets are presented.The essence of the concept of “responsibility” and “professional responsibility of a rescuer” is revealed in the article; the psychological foundations of the development of responsible behavior are analyzed; the main ways and means that ensure the success of the process of the responsibility formation, the main pedagogical conditions for improving educational activities and the formation of responsibility among the cadets are presented

Enhanced Piezoelectricity of Electrospun Polyvinylidene Fluoride Fibers for Energy Harvesting

Piezoelectric polymers are promising energy materials for wearable and implantable applications for replacing bulky batteries in small and flexible electronics. Therefore, many research studies are focused on understanding the behavior of polymers at a molecular level and designing new polymer-based generators using polyvinylidene fluoride (PVDF). In this work, we investigated the influence of voltage polarity and ambient relative humidity in electrospinning of PVDF for energy-harvesting applications. A multitechnique approach combining microscopy and spectroscopy was used to study the content of the β-phase and piezoelectric properties of PVDF fibers. We shed new light on β-phase crystallization in electrospun PVDF and showed the enhanced piezoelectric response of the PVDF fiber-based generator produced with the negative voltage polarity at a relative humidity of 60%. Above all, we proved that not only crystallinity but also surface chemistry is crucial for improving piezoelectric performance in PVDF fibers. Controlling relative humidity and voltage polarity increased the d33 piezoelectric coefficient for PVDF fibers by more than three times and allowed us to generate a power density of 0.6 μW·cm-2 from PVDF membranes. This study showed that the electrospinning technique can be used as a single-step process for obtaining a vast spectrum of PVDF fibers exhibiting different physicochemical properties with β-phase crystallinity reaching up to 74%. The humidity and voltage polarity are critical factors in respect of chemistry of the material on piezoelectricity of PVDF fibers, which establishes a novel route to engineer materials for energy-harvesting and sensing applications

WORLD EXPERIENCE OF STUDY AND USE UNCONVENTIONAL HYDROCARBON RESOURCES

The article presents common and distinctive characteristics of conventional and unconventional hydrocarbon resources and synchronized determinations their main types in Ukrainian and English terminology. The major prospecting-prognosis criteria and features of the unconventional hydrocarbons resources main types were defined. The geological conditions syngenesis of forming unconventional resources different types were established for the Dnieper-Donets depression and quantity of their potential was defined, which much exceeds the general assessment of traditional resources (6.8 trillion m3 gas). The world experience in prospecting and extraction of unconventional hydrocarbons was analyzed. The main tasks in solution the problem of use Ukrainian unconventional hydrocarbon sources significant resources potential were defined

СТРУКТУРНО-ТЕКТОНІЧНІ ТА ЛІТОЛОГО-СТРАТИГРАФІЧНІ ПЕРСПЕКТИВИ ПРИРОСТІВ ВУГЛЕВОДНІВ НА ОБ`ЄКТАХ СХІДНОГО НАФТОГАЗОНОСНОГО РЕГІОНУ

On the results of complex research are allocated areas, facilities, and the projected amount of exploration work and expected growth of hydrocarbons in the Eastern region  За результатами комплексних досліджень виділені напрямки, об'єкти, прогнозні обсяги пошуково-розвідувальних робіт і очікувані прирости вуглеводнів на об'єктах Східного нафтогазоносного регіону