-
Date submitted2022-09-21
-
Date accepted2024-06-03
-
Date published2024-12-25
Analysis of the assessment of the prospects for the burial of CO2 in unexplored aquifer complexes on the example of a facility in the Perm Region
One of the most important problems of our time is the annual increase in greenhouse gas emissions into the atmosphere. It is possible to combat this phenomenon by reducing emissions or developing and applying technologies for capturing, storing, using and disposing of CO2. In this work, an assessment of the expediency and possibility of carbon dioxide burial in deep aquifers is considered, the study of which is carried out to a small extent and due to the lack of useful material in them. The parameters and results of CO2 injection into the aquifer of one of the oil fields of the Perm Region, the geological properties and characteristics of which are determined in this work, are studied. The criteria of applicability, methods of estimating the volume of the reservoir and laboratory studies to determine the properties of CO2 and the features of its interaction with the model of the reservoir fluid are considered. The injection object and reservoir volume were determined, PVT studies of the target gas were performed, and its solubility in reservoir water was determined. The duration of filling the full volume of the trap when capturing 400 thousand tons of CO2 per year from the target industrial facility is calculated to be 202 years. This conclusion signals the prospects for the burial of carbon dioxide in the underground deposits of an undeveloped aquifer complex in the Perm Region, which reflects the importance of studying such geological CO2 burial sites in order to achieve global carbon neutrality goals.
-
Date submitted2019-02-01
-
Date accepted2019-09-16
-
Date published2020-02-25
Priority parameters of physical processes in a rock mass when determining the safety of radioactive waste disposal
- Authors:
- V. S. Gupalo
Consideration of geodynamic, hydrogeochemical, erosion and other quantitative characteristics describing evolutionary processes in a rock mass is carried out when choosing a geological formation for the disposal of radioactive waste. However, the role of various process parameters is not equal for safety ensuring and additional percentages of measurement accuracy are far from always being of fundamental importance. This makes it necessary to identify various types of indicators of the geological environment that determine the safety of radioactive waste disposal for their detailed study in the conditions of the burial site. An approach is proposed to determine the priority indicators of physical processes in the rock mass that determine the safety of disposal of various types of radio active waste and require increased attention (accuracy, frequency of measurements) when determining in - situ conditions. To identify such factors, we used the sensitivity analysis method that is a system change in the limits of variable values during securty modeling in order to assess their impact on the final result and determine the role of various physical processes in ensuring safety.
-
Date submitted2019-07-11
-
Date accepted2019-09-02
-
Date published2019-12-24
Stakeholders management of carbon sequestration project in the state – business – society system
Prevention of catastrophic effects of climate change is one of the most pressing challenges of this century. A prominent place in the low-carbon development system today is carbon capture and storage technology (CCS). This technology can significantly reduce greenhouse gas emissions, leading to global warming. Effectiveness of technology has been proven through successful implementation of a number of CCS projects. CCS projects are implemented in the context of national and often international interests, consolidating efforts of many parties. Sequestration projects involve government bodies, public, industrial and scientific sectors, as well as a number of other business structures. Each participant presents his own expectations for results of the project, which can compete among themselves, creating threats to its successful implementation. World experience in implementing CCS projects indicates that opposition from a certain group of stakeholders can lead to closure of a project, therefore, interaction with environment is one of the key elements in managing such projects. This study focuses on specifics of stakeholder management in implementation of CO 2 sequestration projects. Based on the analysis of world experience, role of the state, business and society in such projects is determined, their main expectations and interests are summarized. The main groups of stakeholders of CCS and CCUS (carbon capture, utilization and storage) projects were identified, differences in their interests and incentives to participate were analyzed. It is proved that system of interaction with stakeholders should be created at the early stages of the project, while management of stakeholders is a continuous process throughout the life cycle. An author’s tool is proposed for assessing degree of stakeholder interest, the use of which allowed us to determine interaction vectors with various groups of stakeholders.
-
Date submitted2019-01-22
-
Date accepted2019-03-16
-
Date published2019-06-25
Key factors of public perception of carbon dioxide capture and storage projects
- Authors:
- S. V. Fedoseev
- Pavel S. Tcvetkov
One of the major challenges of the modern world is the problem of global warming, the solution of which requires the implementation of a set of strategic projects in the field of transition of the energy sector to the path of environmentally balanced development. One of the ways to implement this transition is the development of technologies for capturing and storage of technogenic carbon dioxide, which is recognized as the main one of greenhouse gases. At the same time, in the Russian context, the most expedient is the implementation of technological chains for capturing and storing CO 2 which are aimed at enhanced oil recovery, the effectiveness of which has been proven by world practice. Implementation of these projects requires consolidation of efforts of many parties, including government agencies, enterprises-issuers (power generating facilities and energy-intensive industry), oil-producing enterprises, non-state environmental organizations, media and public. World practice has many examples when uncoordinated actions of one of the stakeholders led to the closure of such a project, and therefore it is necessary to develop a mechanism of interaction between them, taking into account the specifics of Russian conditions. One of the least studied and controversial aspects of this interaction is to involve the public in the implementation of national carbon intensity programs and the local population in the implementation of a specific project. Research in this field has been conducted in the world over the past 14 years, which allowed the current research base to be used to develop fundamental principles for the development and promotion of CO 2 capture and storage technologies in Russia. Key factors affecting the perception of such projects by public were also analyzed and systematized. The research identified the main arguments for and against the development of CO 2 capture and storage technologies.
-
Date submitted2015-07-14
-
Date accepted2015-09-09
-
Date published2016-02-24
Engineering and geomechanical forecast for waste disposal in underground caverns including earthquake-prone zones
- Authors:
- O. V. Kovalev
The article aims at obtaining representative scientifically based data to determine parameters of a necessary-safe condition of the rock massif (RM) in underground waste diposal caverns zones, including earthquake-prone zones. The main requirements for underground caverns for hazardous waste disposal and for their construction technology are described. The subject of the research is underground solution caverns in halogen rocks. Data for justification of safe waste disposal conditions in underground salt caverns and its stages are presented. A complex approach to the solution of the research problem is described. The main aspects of dynamic influence of seismic waves on underground caverns stability are considered. Taking into account seismic-risk zoning data on the research region some significant parameters of a possible seismic impact on the experimental cavern are calculated. The article points out the necessity of superincumbent rock and surface displacement assessment for the experimental site zone using the suggested complex approach and including the analysis of surveying data and results of rock mass geomechanical modeling.
-
Date submitted2008-10-12
-
Date accepted2008-12-17
-
Date published2009-12-11
Principles of development of geological engineering and geological criteria for safe burial of low radioactive wastes in lower cambrian blue clays in the Leningrad region
- Authors:
- R. E. Dashko
It is noticed that the chosen territory for nuclear-waste disposal in Lower Cambrian clay massif nearby Koporje of Leningrad region takes place in a tectonic zone. Lower Cambrian clays are considered as the block-fractured rock mass having a depth zone structure. The long radioactive irradiation of dark blue clays has led to transformation of their structure, physical-chemical and physical-mechanical properties, and also to activization of microbial activity. Nine criteria to the geoenvironmental and engineering geological characteristics allowing in a complex to estimate safety and reliability of a nuclear-waste disposal in clay formations on an example of dark blue clays are suggested.