Features of monitoring storage of methane-hydrogen mixtures

The storage of methane-hydrogen mixtures (MHM) in existing underground gas storage facilities (UGS) is a prerequisite for the development of a "carbonneutral" strategy of the Russian Federation. The use of technologies for storage and delivery of MHM in industrial volumes should be ensured by experimental research, the creation of a regulatory framework and the introduction of modern methods for maintaining the operational reliability of the existing Unified Gas Transportation System (UGSS). The need for scientific and project work is determined by the peculiarities of the storage of MHM and the assessment of the likelihood of negative technogenic and mechanical consequences during the operation of the equipment. The materials provide the main risk models of the processes that arise in the case of hybrid storage of MHM. The use of cluster technology for storage and transportation of MHM is proposed, and the need to ensure constant monitoring of the component composition of gas as part of the implementation of an integrated automated flow technology is shown. Keywords: methane-hydrogen mixtures; hydrogen energy; underground gas storage; hardware control; risks.

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An Integration Method for Assessing the Operational Reliability of Underground Gas Storage in a Depleted Reservoir

Journal of Pressure Vessel Technology ◽

10.1115/1.4039070 ◽

2018 ◽

Vol 140 (3) ◽

Cited By ~ 3

Author(s):

Weichao Yu ◽

Yuan Min ◽

Weihe Huang ◽

Kai Wen ◽

Ye Zhang ◽

...

Keyword(s):

Natural Gas ◽

Integration Method ◽

Gas Injection ◽

Gas Storage ◽

Operational Reliability ◽

Pipeline System ◽

Operational Parameters ◽

Underground Gas Storage ◽

Surface System ◽

Process Calculation

Underground gas storage (UGS), a key component of a natural gas pipeline network, can not only be used as an emergency gas source under a pipeline system failure situation but it is also available for seasonal peak shaving under pipeline system normal operation. Therefore, in order to meet the natural gas needs, it is of vital importance to safeguard the security of UGS operation and assess the reliability of UGS. The aim of the overall study is to develop an integration method for assessing operational reliability of UGS in a depleted reservoir under different injection-production scenarios, whereas existing studies only assess a single component or subsystem reliability. According to function zoning, UGS is separated into reservoir, well system, and surface system, and reservoir and surface system are connected through well system. The well system contains multiple injection/production wells. For the first step of the reliability assessment, the hydraulic calculation, including the gas injection process calculation and the gas production process calculation, is adopted to obtain the operational parameters of each component in UGS. Next, the reliability of the reservoir, injection/production well, and equipment in surface system is evaluated using operational parameters and a Monte Carlo approach. The reliability of the subsystem, such as the well system and surface system, is then calculated according to system reliability theory. Finally, operational reliability of UGS is obtained, which reflects the capacity of performing gas injection-production function. Two test cases are given to illustrate the integration method.

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An Integration Method for Assessing the Operational Reliability of Underground Gas Storage in Depleted Reservoir

Volume 7: Operations, Applications and Components ◽

10.1115/pvp2017-65169 ◽

2017 ◽

Cited By ~ 1

Author(s):

Weichao Yu ◽

Yuan Min ◽

Weihe Huang ◽

Kai Wen ◽

Ye Zhang ◽

...

Keyword(s):

Natural Gas ◽

Integration Method ◽

Gas Injection ◽

Gas Storage ◽

Operational Reliability ◽

Pipeline System ◽

Underground Gas Storage ◽

Surface System ◽

Operation Parameters ◽

Process Calculation

Underground gas storage (UGS), as a key component of natural gas pipeline network, can not only be used as emergency gas source under pipeline system failure situation, but it is also available for seasonal peak shaving under pipeline system normal situation. Therefore, in order to meet the natural gas needs, it is of vital importance to safeguard the security of UGS operation and assess the reliability of UGS. The aim of the overall study is to develop an integration method for assessing operational reliability of UGS in depleted reservoir under different injection-production scenarios whereas existing studies only assess single component or subsystem reliability. According to function zoning, UGS is separated into reservoir, well system containing multiple injection/production wells and surface system, and reservoir and surface system are connected through well system. At the first step of reliability assessment, the hydraulic calculation including gas injection process calculation and gas production process calculation is adopted to obtain the operation parameters of each component in UGS. Next, reliability of reservoir, injection/production well and equipment in surface system are evaluated using operation parameters and Monte Carlo approach. The reliability of subsystem, such as well system and surface system, are then calculated according to system reliability theory. Finally, operational reliability of UGS is obtained, which reflects the capacity of performing gas injection-production function. Two test cases are given to illustrate the integration method.

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DEVELOPMENT OF AN OPTIMAL PLACEMENT ALGORITHM FOR ELECTROCHEMICAL PROTECTION OF UNDERGROUND STEEL GAS PIPELINES

Russian Journal of Building Construction and Architecture ◽

10.36622/vstu.2020.2.46.001 ◽

2020 ◽

pp. 6-17

Author(s):

O. N. Medvedeva ◽

S. I. Astashev

Keyword(s):

Gas Storage ◽

Operational Reliability ◽

Negative Influence ◽

Technical Condition ◽

Optimal Number ◽

Optimal Placement ◽

Underground Gas Storage ◽

Electrochemical Protection ◽

Mode Of Operation ◽

Placement Algorithm

Statement of the problem. The paper considers the process of complex periodic corrosion inspection in order to assess the effectiveness and improve the operational reliability of the corrosion protection system (CPS) using the example of on-site technological networks of the underground gas storage Elshanskaya. Results. The technical condition of the electrochemical protection means, the level of active protection and the technical condition of pipelines of the underground gas storage were assessed, the object was protected by its length and time, and zones of negative influence of constant and stray currents were identified. A method is proposed for determining the optimal number and locations of cathodic protection stations (CPS). Conclusions. Based on the research results, a commissioning method is proposed that provides the optimal technological mode of operation of electrochemical protection means (EChP), and proposals have been developed to ensure the effectiveness of diagnostics and the safety of further operation of gas distribution pipelines. The implementation of this approach in the design of EChP facilities can lead to a significant reduction in energy consumption during operation.

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Research of the possibilities of the existing transport system in Russia for the transportation of goods and methane-hydrogen mixtures for export

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/1201/1/012062 ◽

2021 ◽

Vol 1201 (1) ◽

pp. 012062

Author(s):

L Abukova ◽

E Safarova ◽

D Filippova ◽

V Stolyarov

Keyword(s):

Operational Reliability ◽

Additional Research ◽

Hydrogen Energy ◽

Negative Effects ◽

Industry Standards ◽

Trunk Pipeline ◽

Production Complex ◽

Hydrogen Mixtures ◽

And Storage

Abstract The theory of using hydrogen and hydrogen-methane mixtures (HMC) assumes the operation of an industrial cluster created in the presence of significant reserves of methane, excess electricity, trunk pipeline facilities for transportation and storage, as well as contracts for the supply of mixtures to the domestic market and export. For a balanced decision on the use of existing facilities of the gas transmission network and underground storage facilities for methane-hydrogen mixtures, determination of transit volumes, additional research is required in order to take into account the peculiarities of the behaviour of hydrogen and its mixtures. The authors carried out work to systematize the features of production and storage, assess the consequences of accompanying negative effects to maintain the operational reliability of the production complex. Taking into account the preliminary results, additional research and the adoption of national and industry standards are required before starting significant investments in the creation of a hydrogen energy industry.

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Development of an Optimal Placement Algorithm for Electrochemical Protection of Underground Steel Gas Pipelines

НАУЧНЫЙ ЖУРНАЛ СТРОИТЕЛЬСТВА И АРХИТЕКТУРЫ ◽

10.36622/vstu.2020.58.2.001 ◽

2020 ◽

pp. 9-19

Author(s):

О. Н. Медведева ◽

С. И. Асташев ◽

В. Н. Мелькумов

Keyword(s):

Gas Storage ◽

Operational Reliability ◽

Negative Influence ◽

Technical Condition ◽

Optimal Number ◽

Optimal Placement ◽

Underground Gas Storage ◽

Electrochemical Protection ◽

Mode Of Operation ◽

Placement Algorithm

Постановка задачи. Рассматривается процесс комплексного периодического коррозионного обследования с целью оценки эффективности и повышения эксплуатационной надежности системы противокоррозионной защиты на примере внутриплощадочных технологических сетей компрессорного цеха Елшанской станции подземного хранения газа (СПХГ). Результаты. Произведена оценка технического состояния средств электрохимической защиты, уровня активной защиты и технического состояния отдельных элементов трубопроводов Елшанской СПХГ, определена защищенность объекта по протяженности и во времени, выявлены зоны негативного влияния постоянных и блуждающих токов. Предложен метод определения оптимального количества и мест размещения станций катодной защиты на примере площадки СПХГ. Выводы. По результатам исследований предложен способ наладки, обеспечивающий оптимальный технологический режим работы средств электрохимической защиты, разработаны предложения по обеспечению эффективности диагностики и безопасности дальнейшей эксплуатации газораспределительных трубопроводов. Реализация данного подхода при проектировании средств электрохимической защиты позволит существенно снизить энергозатраты при эксплуатации. Statement of the problem. The paper considers the process of complex periodic corrosion inspection in order to assess the effectiveness and improve the operational reliability of the corrosion protection system using the example of on-site technological networks of the underground gas storage Yelshanskaya. Results. The technical condition of the electrochemical protection tools, the level of active protection and the technical condition of pipelines of the underground gas storage were assessed, the object was protected by its length and time, and zones of negative influence of constant and stray currents were identified. A method is proposed for determining the optimal number and locations of cathodic protection stations. Conclusions. Based on the research results, a commissioning method is proposed that provides the optimal technological mode of operation of electrochemical protection tools. Proposals have been developed to ensure the effectiveness of diagnostics and safety of further operation of gas distribution pipelines. The implementation of this approach in the design of electrochemical protection means facilities might lead to a significant reduction in energy consumption during operation.

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