Заголовок | Geomechanical factor of the intake of additional capacities of free methane at the exploitation of gas deposits |
Тип публікації | Journal Article |
Рік публікації | 2018 |
Автори | Bulat, AF, Lukinov, VV, Bezruchko, KA, Krukovskyi, OP, Krukovska, VV |
Abbreviated Key Title | Dopov. Nac. akad. nauk Ukr. |
DOI | 10.15407/dopovidi2018.08.025 |
Номер видання | 8 |
Розділ | Mechanics |
Нумерація сторінок | 25-35 |
Дата публікації | 8/2018 |
Мова | Ukrainian |
Анотація | The hypothesis of forming a fracture-porous structure of secondary rocks on the gas-deposit development as a result of a decrease of the gas pressure and the development of compression deformations in a productive re- servoir, which stipulate deformations of tension in a low-porous reservoir, assisting the redistribution of water and the gas, and forming the technogenic reservoir in it, is proposed. A mathematical model for the simulation of processes occurring at the development of a gas deposit is developed. The numerical simulation of changes of geomechanical and filtration parameters for the test model of a gas deposit is executed. It is shown that the con- siderable decrease of the gas pressure at the long-term exploitation of a deposit stipulates the deformation of higher- and underlying rock strata. The enhanced variability of the stress field creates an increase in the permeability near-by a layer-reservoir at the reserve depletion of hydrocarbons. If there is a low-porous reservoir in the area of enhanced variability, its gas recovery will grow, being conditioned by an increase in the permeability. |
Ключові слова | gas deposits, gas filtration, geological and geomechanical processes, numerical simulation, rock massif deformation |
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