System Approach to Determination of Resulting Green House Gas Emissions of Engineering Product

Advanced drilling technology makes it possible to penetrate oil and gas sites with deep bedding of oil reservoir, a complex multi-layer structure and a high reservoir temperature at the well bottom, reaching 150°C. The difficult geology of oil strata leads to the fact that the productive layers of a well are flooded unevenly. In this work the causes for water cut in reservoirs are given, repair and insulation work and technologies for isolation of water-bearing intervals in the oil-producing wells considered. Grouting composites for water inflow limitation in reservoirs with low temperature (up to 100°C) and high-temperature reservoirs are studied. For water flood control in the oil and gas wells with high temperature viscoelastic composites with extended gel-time and high stable strength and adhesive properties has been proposed. The advantage of polymer-based composites is their kinetic behavior in dynamic mode, when filtering in a porous medium, which makes it possible to isolate effectively intake formations with different channel openings with a small flow rate of the mixture.

Section: Discussionmentioning

confidence: 99%

Water Production Isolation Techniques for Oil-Wells With High Reservoir Temperature

Ivanova¹,

Krenický²,

Коршунов³

et al. 2023

“…Last but not least, mining activity displaces the original population, who has to leave their homes due to coal mines, coal fires, landslides and contaminated water. Due to the geological structure of the deposit, hydrogeological characteristics and methods of exploitation, over a 100-year period of mining in Novaky and Handlova deposit in the Slovak Republic showed almost all types of impacts that are typical for deep and surface mining, [Recka 2017, Lapcik 2011.…”

Section: The Impact Of Brown Coal Mining On the Environmentmentioning

confidence: 99%

“…The captured particles contain cyanides in the amount of 0.5-1.0% and carbon and organic components, which are further burned in a rotary furnace [Skvarekova 2005]. Thesis [Lukac 1998] examines the possibility of using the mentioned material in construction for the production of mortar and compares it with ground quicklime. On the basis of the achieved results, it can be concluded that CO dust can be used as a binder and classified as air lime of the 5th quality class.…”

Section: Examples Of Waste Use In the Undergroundmentioning

confidence: 99%

Ultra-High Strength Twip Steel With High Chromium Content

Podaný¹,

Studecký²,

Gregor³

et al. 2023

A new ultra-high strength steel with a fully austenitic microstructure and twinning-induced plasticity (TWIP) effect has been developed. TWIP effect gives this steel a good combination of high strength of over 1000 MPa and ductility of over 35%. This new steel has a high chromium content, which increases its corrosion resistance. By combining cold rolling and annealing, the steel has achieved a very fine austenitic microstructure with an average grain diameter of 2.85 µm. This steel could be used for structural applications or components that need to withstand high levels of stress, deformation and corrosion environment.

“…The results are shown in Table 5. pointing out that the leachate from the solidified agglomerate has a significantly lower content of harmful substances than it is in the original waste [Blazkova 2015, Krbalova 2015]. TeHa 1 -Flake ashes from heating plant ENO 2 -Flake ashes from heating plant Novaky…”

Section: Examples Of Waste Use In the Undergroundmentioning

confidence: 99%

MEASURING CONTRIBUTIONS OF TECHNOLOGY CHANGES IN GVCs ON THE ECONOMIC GROWTH OF EMEs

Kang¹

2023

The objective of this study is to explore the relationship between technology changes in global value chains (GVCs) and economic growth of emerging market economies (EMEs). The key findings are that EMEs have a higher economic growth rate than all countries analyzed, with the manufacturing sector being the major contributor to economic growth. Simple GVCs make a larger positive contribution than complex GVCs, while the non-GVCs component shows different patterns. The study's findings contribute to the field by providing evidence on the relationship between GVCs and economic growth in EMEs. The study's findings suggest that policymakers should focus on promoting the manufacturing sector in EMEs, particularly in medium-high and high technology industries, and adopt a balanced approach to GVC participation.