scholarly journals Providing safety and reliability in the design of the offshore ice-resistant stationary oil and gas structures

Vestnik MGSU ◽  
2015 ◽  
pp. 167-177
Author(s):  
Valentin Aleksandrovich Polit’ko ◽  
Igor’ Grigor’evich Kantarzhi

Safety and reliability factors, assumed in Russian and international standards, as well as the main provisions of design of offshore oil and gas structures are considered in the article. The reasons for structures destruction are classified. The analysis showed that the main design provisions and methodology of calculations related to provision of safe and reliable operation of offshore oil and gas structures by different standards are not fundamentally different: the required degree of reliability of the structure is set depending on the social and economic consequences of possible hydrodynamic accidents; calculations are based on the limit states design method using partial safety factors; etc. However, the factors accounting the degree of the structure reliability, partial safety coefficients and load combinations coefficients differ in different standards and methodologies.

2007 ◽  
Vol 8 (2) ◽  
pp. 227-267 ◽  
Author(s):  
Tyler Priest

Offshore development is one of the most important but least analyzed chapters in the history of the petroleum industry, and the Gulf of Mexico is the most explored, drilled, and developed offshore petroleum province in the world. This essay examines offshore oil and gas development in the Gulf of Mexico, highlighting the importance of access and how the unique geology and geography of the Gulf shaped both access and technology. Interactions between technology, capital, geology, and the political structure of access in the Gulf of Mexico generated a functionally and regionally complex extractive industry that repeatedly resolved the material and economic contradictions of expanding into deeper water. This was not achieved, however, simply through technological miracles or increased mastery over the environment, as industry experts and popular accounts often imply. The industry moved deeper only by more profoundly adapting to the environment, not by transcending its limits. This essay diverges from celebratory narratives about offshore development and from interpretations that emphasize the social construction of the environment. It challenges the storyline of market-driven technology and its miraculous ability to expand and create petroleum abundance in the Gulf.


2005 ◽  
Vol 07 (04) ◽  
pp. 705-733
Author(s):  
JUAN PALERM ◽  
INESSA RUDENKO ◽  
JEAN-LOUIS TEURLAI ◽  
TATYANA VASSILEVSKAYA ◽  
JOSEP RENAU

Kazakhstan has shown an increase in its offshore oil and gas (O&G) prospection and operation activities in the Caspian Sea since 1998, so far with a limited number of operators, but which is about to increase significantly. This is of concern, considering that the environmental and industrial safety regulatory framework is still inadequate for the prevention of pollution from a large number of operators in a very sensitive aquatic ecosystem. This paper reports on the results of a study undertaken for the European Commission Tacis programme aimed at enhancing the environmental and industrial safety regulatory framework in order to align it with EU and international best practice. Based on a comprehensive analysis of applicable international standards and regulations, as well as those of Kazakhstan, ten issues are identified which require urgent attention. These issues are discussed and recommendations made on how to address them in order to improve the regulatory system.


2021 ◽  
pp. 205301962110153
Author(s):  
Ian Gray

As the physical impacts of the Anthropocene begin to make themselves felt around the globe, maintaining current levels of economic prosperity, in many communities, will consume an increasing portion of public finances. This is because existing investments in property and capital will require new forms of protection if they are to continue generating stable streams of public revenue. Since Anthropocene impacts are unevenly distributed, some territories will be under more pressure than others to shift limited public spending to cope with growing levels of exposure. The sinking of Louisiana’s coastal wetlands provides a clear example of this trend of accelerating local vulnerability due to human-induced environmental change. With the bulk of state revenue tied to activities concentrated along Louisiana’s coasts, the state’s Coastal Protection and Restoration Authority has launched an ambitious plan of government-backed expenditures that seek to defend the economic viability of these zones. Yet, many actions aimed at preventing immediate loss also work to secure incumbent extractive industries, such as offshore oil and gas drilling, which themselves contribute to the very vulnerabilities requiring state intervention in the first place. This paper, borrowing from the environmental sociology of Allan Schnaiberg, considers the social consequences of this dynamic, dubbed the “treadmill of protection.”


2022 ◽  
Vol 14 (2) ◽  
pp. 807
Author(s):  
Ezutah Udoncy Olugu ◽  
Kuan Yew Wong ◽  
Jonathan Yong Chung Ee ◽  
Yslam D. Mammedov

The existence of external two-fold pressure regarding competitiveness and sustainable development in a capital-intensive industry supports the need for sustainable performance. However, endeavors to create a sustainable framework to measure the performance of the oil and gas (O&G) industry are mostly devoted to the production and supply chain of petrochemical products and rarely focus on a maintenance perspective. Motivated by such scarcity, the goal of this research was to discuss and articulate the performance assessment framework by integrating concepts of maintenance and sustainability in the O&G industry. This study proposed the use of a range of performance measures for assessing sustainability on offshore production and drilling platforms. The conceptual framework consists of four aspects of sustainability categorized into technical, environmental, social, and economic dimensions. Each measure was assigned according to its relevance at the strategic, tactical, and functional levels of maintenance decision making. The conceptual framework resulted in hierarchical clusters of twelve strategic indicators. These indicators consist of conventional measures as well as new ones relating to the safety and reliability on offshore platforms. The potential contribution of the present study is found in its intention to empower a better understanding of sustainable maintenance and encourage those making decisions about practical implementation within the O&G industry. This paper culminates with directions for future studies.


2021 ◽  
Vol 143 (5) ◽  
Author(s):  
Xiaohua Zhu ◽  
Qinglong Lei ◽  
Yu Meng ◽  
Xiaoxuan Cui

Abstract Unbonded flexible pipes are widely utilized in the exploitation of offshore oil and gas resources. They are connected to two of the most critical types of system: floating production platforms and underwater production systems. However, if some tensile armor wires are substituted by cables or broken, the tensile armor layer will be incomplete, which seriously reduces the safety and reliability of the flexible pipe. In the present study, models of a flexible pipe with a complete tensile layer and with the tensile layer partially missing were established. The error for the tensile stiffness obtained by the finite element model of an intact flexible pipe was only 1% compared with experimental results. Because the load borne by the inner tensile armor layer is larger under tension than that borne by the outer tensile armor layer, the loss of inner tensile armor wires has a greater impact on the tensile properties. The maximum axial elongation of the flexible pipe increases with the number of missing inner tensile armor wires as a cubic polynomial. If the distribution of the missing armor wires is too dense, a stress concentration and local bending may occur, which will reduce the tensile strength of the flexible pipe.


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