Dynamic Failure Probability Evaluation of Subsea High Integrity Pressure Protection System by Bayesian Networks

2021 ◽  
Author(s):  
Chuan Wang ◽  
Jun Gou ◽  
Chao Yu ◽  
Yupeng Liu ◽  
Jianjun Luo ◽  
...  

Abstract Safety instrument system is composed of sensor, logic solver and final actuator. It is widely used in process industry, such as oil and gas industry, chemical industry, metallurgy and electric power industry. It is an important measure to ensure the safety of production, which can effectively avoid the potential danger to people, equipment and the environment. However, when it breaks down, the consequences can be expected to be extremely serious. Therefore, HIPPS requires low risk, so it is necessary to quantitatively evaluate the dynamic performance of HIPPS to ensure the high safety of HIPPS during the design life cycle. In this paper, a Bayesian network based method is proposed to evaluate the dynamic performance of HIPPS. The effects of different detection methods and maintenance methods on the dynamic performance of HIPPS were analyzed quantitatively. The results show that the performance of the system has been improved obviously after maintenance. Compared with the traditional method, the performance of HIPPS is improved by introducing partial stroke test. The sensitivity analysis shows that the failure rate has a great influence on the risk of HIPPS valve. Increased coverage of PST may improve the performance of HIPPS.

2020 ◽  
Vol 17 (1) ◽  
pp. 69-78 ◽  
Author(s):  
L. A. Chaldaeva ◽  
T. I. Chinaeva ◽  
A. S. Bogopolskiy

Purpose of the study. The oil and gas industry occupies an important place in the Russian economy. The financial position of any organization is determined by its financial results, where profit is a key indicator in a market economy and an indicator of the success of the company. The aim of this work is to study the state and development of the oil and gas industry, analysis of the main financial indicators, characterizing the activities of a number of oil producing companies selected in the SPARK database using economic and statistical methods.Materials and methods. The research information base is statistical data and analytical information reflecting the financial component of the oil and gas industry. The research methodological base is represented by economic and statistical methods of information analysis.Results. The analysis of the main trends in the development of trade in the international oil trade is carried out, the key determinants of the modern world oil market are highlighted, the economic situation in the Russian oil industry is analyzed, which showed that there is a decrease in oil production associated with the OPEC + agreements; the share of exports of crude oil increases; the share of exports of refined oil decreases; the government is developing measures to reduce the dependence of budget revenues on the oil and gas industry.The main types of profit, such as gross profit, sales profit, before-tax profit, net profit are considered. It is worth noting that these categories of profit are interconnected, since one category follows from another, depending on the items of income and expense inherent in a particular type of profit. The analysis of a number of indicators, characterizing the financial activities of organizations of the oil and gas complex was carried out, the totality of oil producing organizations based on the SPARK database was selected, and a comparative analysis of the financial activities of two organizations of the oil and gas complex was carried out.Conclusion. The oil and gas industry is a key sector of the economy, making a significant contribution to the social and economic development of our country. Revenues from the activities of the oil and gas complex make a significant contribution to the country’s GDP and are a significant component of the budget.In this paper, an analysis of a number of financial and economic indicators, characterizing the activities of organizations of the oil and gas complex was carried out. The financial condition of the organization is largely determined by its financial results – profit or loss. The main indicators of the financial results of the organization are profit and profitability, which depend on many internal and external factors. Including, industry features have a great influence. A set of oil-producing organizations based on the SPARK database was selected in the work. By the example of organizations JSC “IDELOIL” and Ltd “NEDRA-K”, a comparative analysis of financial and economic indicators was carried out, directions for increasing gross profit and gross margin indicators were proposed and justified in order to reduce costs and increase revenues.As a result, it was concluded that the oil industry in Russia depends on political and economic factors, in this regard, it is necessary to regularly analyze the activities of organizations in this industry to identify miscalculations, low-active functioning systems, etc., with the purpose of more efficient functioning of the industry.


Author(s):  
Troy Halligan ◽  
Brent Vyvial ◽  
Clay Rodery ◽  
Adam Thistlethwaite ◽  
Kannan Subramanian

Abstract Engineered enclosures for the repair of piping, often referred to as clamps, are used to restore the integrity of in-service piping components as an interim measure until the damaged components can be repaired. They are typically used in the petroleum refining and chemical process industries, nuclear and non-nuclear utilities, and other on-shore and offshore facilities in the oil and gas industry. This type of enclosure has typically been viewed as a short term repair with a limited design life. However, it is the authors’ experience that properly engineered and installed enclosures perform in a manner consistent with the design criteria covering the original piping component(s) to which they have been installed. To investigate this further, a series of tests were conducted on several engineered enclosures that had been recently removed to replace the damaged component. Tests were also conducted on several new constructed enclosures of a similar configuration and size to those that had been recently removed. An analytical approach was also performed on one such enclosure-pipe configuration to support and study the experimental results in detail. This paper presents and summarizes the tests, analyses, and results from this work. The results provide information that can benefit users, standards developers, and regulatory authorities in better understanding the considerations affecting the design life of engineered enclosures.


2021 ◽  
Author(s):  
Paweł Jagoda ◽  
Jarosław Nęcki ◽  
Jakub Bartyzel ◽  
Piotr Korbeń ◽  
Michał Kud ◽  
...  

<p>Goal of the CCAC project is to observe urban emission of natural gas over Canada and different countries in Europe. Our team was responsible for the Silesia and Sub-Carpathia regions in southern Poland. In this presentation we will focus on the methane emission measurements from gas pipelines, storages, gas wells as well as gathering and processing facilities, which was realized by our team in years 2018-2020.</p><p>South eastern Poland is rather rural part of the country with rich history of oil and gas industry going back to the XVI-th century. Currently Carpathians and Carpathian Foredeep regions gas industry produces 1.35 BILLIONS of m<sup>3</sup> [1]</p><p>The measurements have been carried out since summer 2016 mainly with Micro-Portable Greenhouse Gas Analyzer ‘Los Gatos Research, MGGA-918’ mounted on board of a car. We also had capability to deploy analyser in difficult terrain with its own power supply. During our measurements our team visited over 300 gas wells. We found that over half of these sites show elevated methane concentrations which can be attributed to either gas well itself or soil fractures around site. Transects paths were designed to follow pipelines. This allowed us to monitor possible leaks from the natural gas infrastructure. However there are numerous possible sources in close proximity of pipelines. We will discuss detection methods and variability study for dozens of transects. As of the 2017 only 9 gathering and processing facilities report release which states the emission of 1.8*10<sup>6</sup> m<sup>3</sup> CH<sub>4</sub> per year. One of the focus points of our project was to estimate how uncertain were methane emission from O&G in Poland which at current phase concludes methane emission of 7.5-40 kt CH4/year</p><p>During the presentation we will outline challenges in carrying out measurements with GPM, OTM 33a methods that were performed alongside large-area screening. We are developing oversized flow chamber method. Mobile structure is built in the shape of a dome. It has the radius of 3 meters which gives the chamber volume of 49 m<sup>3</sup>.</p><p><strong>This work was funded under the Climate and Clean Air Coalition (CCAC) Oil and Gas Methane Science Studies.</strong></p><p>[1]PSG, „Bilans zasobów złóż kopalin w Polsce wg stanu na 31 XII 2019 r,” PIG-PIB, Warsaw, 2020.</p><p> </p>


2020 ◽  
Vol 78 (7) ◽  
pp. 861-868
Author(s):  
Casper Wassink ◽  
Marc Grenier ◽  
Oliver Roy ◽  
Neil Pearson

2004 ◽  
pp. 51-69 ◽  
Author(s):  
E. Sharipova ◽  
I. Tcherkashin

Federal tax revenues from the main sectors of the Russian economy after the 1998 crisis are examined in the article. Authors present the structure of revenues from these sectors by main taxes for 1999-2003 and prospects for 2004. Emphasis is given to an increasing dependence of budget on revenues from oil and gas industries. The share of proceeds from these sectors has reached 1/3 of total federal revenues. To explain this fact world oil prices dynamics and changes in tax legislation in Russia are considered. Empirical results show strong dependence of budget revenues on oil prices. The analysis of changes in tax legislation in oil and gas industry shows that the government has managed to redistribute resource rent in favor of the state.


2011 ◽  
pp. 19-33
Author(s):  
A. Oleinik

The article deals with the issues of political and economic power as well as their constellation on the market. The theory of public choice and the theory of public contract are confronted with an approach centered on the power triad. If structured in the power triad, interactions among states representatives, businesses with structural advantages and businesses without structural advantages allow capturing administrative rents. The political power of the ruling elites coexists with economic power of certain members of the business community. The situation in the oil and gas industry, the retail trade and the road construction and operation industry in Russia illustrates key moments in the proposed analysis.


2019 ◽  
Vol 16 (6) ◽  
pp. 50-59
Author(s):  
O. P. Trubitsina ◽  
V. N. Bashkin

The article is devoted to the consideration of geopolitical challenges for the analysis of geoenvironmental risks (GERs) in the hydrocarbon development of the Arctic territory. Geopolitical risks (GPRs), like GERs, can be transformed into opposite external environment factors of oil and gas industry facilities in the form of additional opportunities or threats, which the authors identify in detail for each type of risk. This is necessary for further development of methodological base of expert methods for GER management in the context of the implementational proposed two-stage model of the GER analysis taking to account GPR for the improvement of effectiveness making decisions to ensure optimal operation of the facility oil and gas industry and minimize the impact on the environment in the geopolitical conditions of the Arctic.The authors declare no conflict of interest


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