Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Igor Medved"'
Publikováno v:
Applied Sciences, Vol 14, Iss 15, p 6434 (2024)
Increasing the share of renewable energy sources (RESs) in the energy mix of countries is one of the main objectives of the energy transition in national economies, which must be established on circular economy principles. In the natural gas storage
Externí odkaz:
https://doaj.org/article/191f3b32e13a454fa26d8eccf3d0e996
Publikováno v:
Applied Sciences, Vol 14, Iss 14, p 6161 (2024)
Extended-reach drilling represents an advanced way of drilling and accessing reservoirs that were previously economically not feasible to drain, impossible to reach or in an environmentally sensitive area. One of the main issues that appears while dr
Externí odkaz:
https://doaj.org/article/2b0db494323c4809a81364a71a31b76f
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 38, Iss 2, Pp 53-64 (2023)
The growing energy demand in the world, as well as the current geopolitical situation, require countries to additional investments in the exploration and production of hydrocarbons from their own sources. This means that companies must develop new fi
Externí odkaz:
https://doaj.org/article/eaf545517b2a479ea5b0795f4121aead
Publikováno v:
Applied Sciences, Vol 13, Iss 7, p 4112 (2023)
With the development of different segments within the drilling technology in the last three decades, well drilling has become possible in harsh downhole conditions. The vertical well provides access to oil and gas reserves located at a certain depth
Externí odkaz:
https://doaj.org/article/489528ce6cd14de591f2c9e6b0c24f8f
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 34, Iss 4, Pp 67-77 (2019)
During the drilling of a well, differential pressure causes filtration of the mud liquid phase into the surrounding rocks. To reduce the filtrate invasion in the rock, it is necessary to maintain the density of the mud. Also, Wellbore Strengthening M
Externí odkaz:
https://doaj.org/article/a5f553fdd0314fcfb72485aa2e7f960d
Publikováno v:
Applied Sciences, Vol 12, Iss 11, p 5348 (2022)
Wellbore instability is one of the most serious problems that can occur during drilling, mainly during drilling oil or gas wells through rocks that contain a higher proportion of clay, such as shales. To prevent wellbore instability, oil companies ap
Externí odkaz:
https://doaj.org/article/f15413b95f374f29bb1bcf69d6612271
Publikováno v:
Energies, Vol 15, Iss 7, p 2591 (2022)
Drilling fluid represents the most important fluid that must fulfill numerous important assignments during drilling operations. Many commercially available additives for water-based drilling fluid fall into the category of non-degradable and environm
Externí odkaz:
https://doaj.org/article/011560b5c70e4faaa074bea2cf17db84
Publikováno v:
Energies, Vol 14, Iss 14, p 4324 (2021)
The storage of natural gas in geological structures such as depleted fields, aquifers and salt caverns plays an important role in a gas supply system as it balances the fluctuation of gas demand and price. Hydraulic loss due to fluid flow through gas
Externí odkaz:
https://doaj.org/article/0007939d43ac46d7b1e3df3a59553747
Publikováno v:
Applied Sciences, Vol 11, Iss 2, p 767 (2021)
For years, drilling engineers have been faced with the challenge of drilling wells through naturally fractured reservoirs that are present around the world. During drilling, the pressure at the bottomhole of a well is frequently intentionally higher
Externí odkaz:
https://doaj.org/article/ab6550269ff34a4ba66535ecf6cd555b
Publikováno v:
Energies, Vol 13, Iss 23, p 6246 (2020)
The drilling of clay-rich formations, such as shale, is an extremely demanding technical and technological process. Shale consists of mixed clay minerals in different ratios and in contact with water from drilling mud. It tends to swell and cause dif
Externí odkaz:
https://doaj.org/article/9cdc0080050e4b8193fb6732473f5c71