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Developing a gas-dynamic model of an underground gas storage facility

Volovetskyi V. B., Bugai A. O., Levin O. A., Serediuk M. D., Romanyshyn Y. L., Shchyrba O. M.

Journal of Achievements in Materials and Manufacturing Engineering

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2025

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Vol. 128, nr 1

18--32

EN

Purpose: The aim of the study is to create a gas-dynamic model of the Dashava underground gas storage (UGS) facility. It studies reservoir properties and well operation parameters during underground gas storage facility (UGSF) operation in the seasons of withdrawal and production. Design/methodology/approach: The research methodology comprehensively examines the findings from geophysical, seismic, and gas-dynamic investigations. It also encompasses data on well design, operational indicators, and the primary parameters associated with the underground storage facility’s operational performance during its operational lifespan. Additionally, geological and gas-dynamic models are created. The geological model will be refined by adapting its filtration and capacitance characteristics to align with the actual gas-dynamic parameters of cyclic operation. Additionally, a gas-dynamic model will be developed and adapted to align with the calculated reservoir pressures in the wells and the actual reservoir pressure in the actively drained zone. Findings: The reservoir and operational parameters of the gas storage wells were analysed, and gas-dynamic calculations were performed using the Petrel software package. The Petrel software package was used to build a 3D geological model of the Dashava structure for the gas-bearing horizons ND-8 (XIV) and ND-9 (XV), and the physical properties of gas reservoir rocks were substantiated. A gas-dynamic model was developed and adapted by comparing the main indicators of the gas storage facility between the calculated and actual values of the Dashava UGSF. Based on the results obtained, it was found out that the discrepancy between the average calculated and actual pressure values is minimal. The developed gas-dynamic model provides forecasting of the main indicators of the gas storage facility with a reliability of more than 90%, which indicates the feasibility of using the model for approximate calculations of the predictive mode of operation of the Dashava UGSF. Practical implications: The studies performed by means of gas-dynamic modelling of UGS facilities allow for a more thorough approach to the study of the reservoir system of gas storage facilities and promptly perform forecasting of the main indicators of its operation during gas withdrawal and production. Originality/value: The application of the developed gas-dynamic model of the UGS facility will provide an opportunity to quickly analyse the main indicators of its work to solve problematic issues in a timely manner.

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Study of gas gathering pipelines hydraulic efficiency in gathering facilities of depleted fields

Volovetskyi V. B., Romanyshyn Y. L., Raiter P. M., Serediuk M. D., Shchyrba O. M., Matkivskyi S. V., Filipchuk O. O.

Journal of Achievements in Materials and Manufacturing Engineering

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2024

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Vol. 122, nr 2

69--85

EN

Purpose: The study aims to investigate the hydraulic efficiency of gas gathering pipelines of the Yuliivskyi oil and gas condensate production facility (OGCPF). Identify the main factors that lead to a decrease in the hydraulic efficiency of gas gathering pipelines. Design/methodology/approach: The modes of operation of gas gathering pipelines were studied experimentally at gas treatment units. Calculations determined the volume of liquid contaminants in the internal cavity of gas gathering pipelines. Industrial studies were conducted to measure the volume of transported gas and liquid contaminants entering the flow. A comparison of the obtained values makes it possible to assess objectively the presence of liquid contaminants in the internal cavity of gas gathering pipelines. Findings: Based on the results of studies of the gas gathering pipelines' hydraulic efficiency, it was found that the volume of liquid contamination determined by calculations is less than that determined by the results of industrial studies. The main factors that adversely affect the hydraulic efficiency of gas gathering pipelines have been identified. Timely monitoring of these main factors will help prevent a decrease in the hydraulic efficiency of gathering pipelines and a decrease in the volume of transported gas. Implementing a system for monitoring the efficiency of gas gathering pipelines will allow timely measures to be taken and prevent a decrease in gas transportation. Research limitations/implications: To improve the efficiency of gas gathering pipeline operation, it is advisable to introduce new approaches to timely prediction of complications, particularly developing and implementing various control systems. Practical implications: The performed studies make it possible to objectively assess the reasons for the decrease in the hydraulic efficiency coefficient of gas gathering pipelines, which will make it possible to predict it to prevent a decrease in the volume of transported gas. Originality/value: It is proposed to use a system for monitoring the efficiency of gas gathering pipelines. Applying this approach generally ensures the efficiency of analysing the state of gas gathering pipelines and timely action.

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Development of software for automated digitisation of geophysical survey results of underground gas storage wells

Volovetskyi V. B., Romanyshyn Y. L., Bugai A. O., Doroshenko Ya. V., Shchyrba O. M., Vasko A. I.

Journal of Achievements in Materials and Manufacturing Engineering

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2024

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Vol. 125, nr 1

25--41

EN

Purpose: The purpose of the work is to store, process and analyse the materials of geophysical surveys of wells (GSW) of underground gas storage (UGS) facilities. In order to reduce the time needed to analyse paper-based GSW data accumulated during the operation of gas storage facilities, it is important to transfer them to electronic form for storage. A set of application software solutions has been developed to achieve the goal. Design/methodology/approach: The paper presents approaches to the operational analysis of geophysical information, including its verification, correction and accumulation in digital format. A software package (SP), „Karotazh”, was developed for automated recognition of the results of geophysical surveys of wells, which are important for solving various geological and technological problems by means of prompt processing, systematisation, accumulation of initial information, graphical and documented display of this information. The software for preparation of well logs is designed to enter them into the archive for storage, viewing and further automated recognition (digitisation). In order to solve the tasks set out in the study, it has been used such general scientific methods as systematisation (when selecting the necessary sources of information), generalisation (in the process of defining general terms that highlight the main features), formal logical method, method of systematic analysis of information, descriptive method and modelling method. Findings: Implementing the developed software for automated recognition of logging results can increase the efficiency of processing geological and geophysical information on wells and productive horizons to analyse their condition and eliminate complications promptly. For users' convenience, an interface for Ukrainian UGS conditions has been developed, allowing specialists to increase their work’s efficiency. The proposed software solution can be used by oil and gas companies in Ukraine to digitise and provide information support for the analytical processing of geophysical survey results. The approach enables to quickly digitise and analyse well logs and then store them in an electronic archive of geophysical surveys. Research limitations/implications: In order to solve problematic issues in gas storage wells on time, it is necessary to promptly analyse the results of geophysical surveys using modern software tools to predict possible complications and take appropriate measures in a timely manner. Practical implications: Implementation and use of the developed software solution for automated recognition of GSW results at UGS facilities enables to reduce the time for analysis of information in paper form and increase the efficiency of obtaining the necessary information for timely action in case of complications. Originality/value: The authors propose relevant and up-to-date software solutions for the automated processing of GSW results and their storage and use in an electronic archive. Implementing the approach in production enables specialists to quickly analyse information and solve problematic issues.

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Development of information and software for automation and digitalisation of processing and analysing geological-geophysical data of underground gas storage wells

Volovetskyi V. B., Romanyshyn Y. L., Bugai A. O., Altukhov S. O., Shchyrba O. M.

Journal of Achievements in Materials and Manufacturing Engineering

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2024

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Vol. 126, nr 2

66--85

EN

Purpose: The work aims to develop an information and software system for the operational analysis of geophysical well logging (GWL) data from underground gas storage (UGS) facilities for any period of their operation. In order to increase the efficiency of the detailed analysis of the well logging data accumulated over the entire period of operation of gas storage facilities, it is advisable to store them in electronic form. Design/methodology/approach: Information and software systems have been developed to allow geological and geophysical information accumulation, verification, correction and analysis. Data from the developed databases are used to automate the process of creating graphical geological materials for each well and for UGS facilities. The purpose of the systems is to provide automated solutions to various geological and technological tasks using personal computers by means of timely processing, systematisation, accumulation of initial information, and graphical and documented display of the information. Information and software systems have been developed to display the results of lithological analysis of UGS borehole sections and to correlate UGS borehole sections. Findings: The application of the developed software in production can increase the efficiency of analysis of geological and geophysical information on wells and production horizons, identify possible complications and take timely measures. Research limitations/implications: To solve possible complications in gas storage wells in time, it is necessary to analyse the results of geophysical surveys to predict them. Practical implications: Implementation of the developed information and software system will increase the efficiency of the analysis of geophysical information in order to provide timely solutions to various problems. Originality/value: The application of the developed information and software system will allow the timely analysis of geological and geophysical information to solve problematic issues.

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Developing an electronic archive of geophysical survey results from underground gas storage wells

Volovetskyi V. B., Romanyshyn Y. L., Altukhov S. O., Bugai A. O., Doroshenko Ya. V., Shchyrba O. M.

Journal of Achievements in Materials and Manufacturing Engineering

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2024

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Vol. 122, nr 1

14--30

EN

Purpose: The study aims to analyse and systematise the data from geophysical surveys of wells (GSW) of underground gas storage (UGS) facilities. In order to minimise the time required for a detailed analysis of the paper-based GSW data for the entire period of gas storage facility operation, it is advisable to transfer it to electronic form as much as possible. Design/methodology/approach: The software "Electronic archive of GSW" was developed. The software makes it possible to store the results of the GSW in various formats in the developed centralised database, sort them by various parameters, and provide prompt access to it with appropriate access rights for different configurations for individual users. Based on the developed database structure, modules were developed that ensure the export and synchronisation of cartographic materials with the data of the electronic archive of the results of geophysical surveys of UGS wells, namely: "Directory of well types", "Directory of horizons", "Status of well stock", "Export of surveys". The developed modules have a user-friendly interface and provide the user with the possibility of comprehensive use of geophysical survey data for viewing and exporting them directly to the user's terminal using mapping materials. Findings: With the help of the software "Electronic Archive of GSW", it is possible to increase the efficiency of processing geological and geophysical information on wells and productive horizons to analyse their condition and timely resolve problematic issues. To view the location of wells and improve the convenience of working with the electronic archive data, an interface has been developed that allows the user to process the electronic archive data using structural maps of UGS productive horizons. Research limitations/implications: To improve the efficiency of solving various problems at gas storage facilities, it is advisable to introduce new approaches to timely forecasting of complications, including prompt analysis of information from geophysical surveys of wells and the implementation of various measures. Practical implications: The implementation of the developed software "Electronic Archive of GSW" at underground gas storage facilities will significantly reduce the time for analysing information in paper form, facilitate the work of specialists and increase their efficiency in obtaining the necessary information in a timely manner. Originality/value: The use of an electronic archive (EA) of the results of geophysical surveys of underground gas storage facility wells is proposed. The application of this approach and the functioning of the software as a whole ensures the efficiency of information analysis and the decision-making process.