ANCHORING OF STRUCTURES IN DEEP WATER

1982 ◽  
Vol 22 (1) ◽  
pp. 112 ◽  
Author(s):  
Einar Tore Moe ◽  
Odd A. Olsen
Keyword(s):  
Deep Water ◽  
Oil And Gas ◽  
Wind Waves ◽  
Gas Production ◽  
Mooring Lines ◽  
Oil And Gas Production ◽  
Oil And Gas Exploration ◽  
Anchoring System ◽  
Offshore Oil And Gas ◽  
Global And Local

The oil and gas exploration industry continually discovers energy resources at greater water depths, and in many of the structures now being designed for offshore oil and gas production the anchoring system is one of the key components, having significant influence on operational characteristics as well as safety.The best possible understanding of the problems involved in anchoring is therefore essential, and an evaluation of a design for deep-water long-term anchoring should include:evaluation of possible excitation sources at actual site (wind, waves, current)dynamic analysis of the structure and mooring linesevaluation of soil properties and anchor behaviourevaluation of fatigue strength of mooring linesevaluation of conditions for corrosion and corrosion protection.In this paper 'the state of the art' within these problem areas is discussed. Sample calculations of global and local dynamics of the mooring lines are compared with results from conventional quasistatic analysis to demonstrate the importance of taking into account dynamic phenomena and oscillations caused by wind, waves and current action. Areas for further research are also discussed.

NOVEL PRODUCTION CONCEPTS FOR DEEP WATER AND ASSOCIATED HYDRODYNAMIC PROBLEMS

1998 ◽  
Vol 38 (1) ◽  
pp. 855
Author(s):  
K.P. Thiagarajan
Keyword(s):  
Deep Water ◽  
Oil And Gas ◽  
Production Systems ◽  
Gas Production ◽  
Oil And Gas Production ◽  
Cylindrical Structures ◽  
Campos Basin ◽  
Offshore Oil And Gas ◽  
Motion Characteristics ◽  
Offshore Oil

Offshore oil and gas production is now reaching to great depths, in excess of 1000 m, in the Gulf of Mexico and the Campos Basin, offshore Brazil. It will not be long before Australian companies look towards probable reserves in deeper waters that still remain within the Australian exclusive economic zone. Production concepts for deep and ultra deep water thus need to be studied and researched, and a constant watch should be maintained on developments around the world in this area.This paper presents two popular, and constantly evolving, concepts for deep water, namely: tension leg platforms (TLP) and spars. Tension leg platforms have been in existence for about 14 years, and are actively sought for deep water by worldwide operating companies. They are vertically moored by means of taut tethers which present interesting motion characteristics and unique hydrodynamic problems. Spar platforms are currently being installed for production purposes. These are large deep draft cylindrical structures moored by catenary or taut spread mooring systems. Physical details, advantages and limitations of both systems are discussed.While many aspects of these production systems are now understood, there are still several unknowns. Deeper waters translate to newer problems. Potential problems of the future are discussed in this paper, and research needs are highlighted.

Need for Engineering Solutions to Problems Associated With Offshore Oil and Gas Production

2014 ◽  
Vol 136 (3) ◽  
Author(s):  
Kaufui Vincent Wong
Keyword(s):  
Research And Development ◽  
Deep Water ◽  
Oil And Gas ◽  
Gas Production ◽  
Public Companies ◽  
Oil And Gas Production ◽  
Offshore Oil Production ◽  
The Government ◽  
Offshore Oil And Gas ◽  
Offshore Oil

There has been an increase in oil spill research and development, especially after the Deepwater Horizon accident in the Gulf of Mexico. However, the public resources seem to be concentrated in the life sciences, rather than in engineering. The effect of oil on seaweeds and the effect of spilled oil on seabirds, for instance, seem to take precedence in government research funding, rather than engineering issues. If engineering preventive procedures and equipment are in place, then these adverse effects can be viewed as secondary. Offshore oil and gas production is an engineering endeavor, and it makes sense to expand resources in key aspects of engineering to allow for safer practices with regard to this endeavor. Offshore oil production is principally done by public companies, so it is logical that the government requires certain safety and operational standards with regard to permitting related offshore activities. It should follow that high governmental safety rules be set, and that production companies be aided by science and technology research that has been completed. A second thrust is to fund research and development for up-to-date science and engineering to meet the challenges of deep water drilling, especially in the area of machinery and devices that would help in mitigating accidents in deep water.

Construction of a sustainability indicators system for offshore oil and gas production units

2021 ◽  
Vol 21 (3) ◽  
pp. 147-161
Author(s):  
Lucia Maria de Araujo Lima Gaudencio ◽  
Rui de Oliveira ◽  
Wilson Fadlo Curi
Keyword(s):  
Decision Making ◽  
Sustainable Management ◽  
Oil And Gas ◽  
Current Knowledge ◽  
Management Practice ◽  
Gas Production ◽  
Sustainability Indicators ◽  
Oil And Gas Production ◽  
Offshore Oil And Gas ◽  
Offshore Oil

Production units located in the Brazilian marine environment are responsible for the production of 95.7% of oil and 78.8% of natural gas of Brazil causing economic, environmental, and social impacts motivating us to construct a system of indicators as a tool aimed to improve the sustainable management practice of these production units. To date, one of the tools most used by the oil industry is the sustainability report, oriented by guidelines from international organizations. However, these reports have a corporate character being unable to help the sustainability management of production units’ activities. The indicators were selected based on a systemic approach, using current knowledge on sustainability indicators, together with the survey of aspects relevant to the operation and management of offshore oil and gas production units. This paper describes the proposed indicators and presents the hierarchical structure of the system, built on the economic, environmental, social, and operational dimensions. The application of the proposed system of indicators, based on multicriterial and multiple decision-making analyses, validates a complex decision process, providing improved sustainable management of offshore production units by identifying points for which the necessary measures and actions can be implemented. Keywords: offshore oil and gas production; sustainability indicators; multicriteria and multiple decision-making analyses.

Offshore Oil and Gas Production and Transportation

2019 ◽  
pp. 99-126
Author(s):  
Shashi Shekhar Prasad Singh ◽  
Jatin R. Agarwal ◽  
Nag Mani
Keyword(s):  
Oil And Gas ◽  
Gas Production ◽  
Oil And Gas Production ◽  
Offshore Oil And Gas ◽  
Offshore Oil

scholarly journals Analisis Curse Theory pada Sumber Daya Alam Migas Bagi Warga Madura

2018 ◽  
Vol 14 (1) ◽  
pp. 12
Author(s):  
Mohammad Hidayaturrahman
Keyword(s):  
Oil And Gas ◽  
Gas Production ◽  
Community Empowerment ◽  
Government Programs ◽  
Oil And Gas Production ◽  
Oil And Gas Exploration ◽  
Exploration And Production ◽  
State Income ◽  
The Government ◽  
Oil And Gas Sector

Government policies in natural resource management, especially in the oil and gas sector face a lot of problems. However, the government also has a responsibility to improve the life of people affected from oil and gas exploration and production activities. This research was aimed at investigating how the implementation of policies run by the central and local government toward the oil and gas management and community empowerment, especially the community located closely  to oil and gas exploration and production activity in Madura, East Java. This research method is phenomenological research using descriptive qualitative approach. Therefore, this study is conducted through direct observation on the object during the research time. The data collection is done through observation and interview. The results of this study revealed that it is needed an integrated step done by the government, vertically, whether central, provincial, district, and village to synchronize oil and gas management and community empowerment programs. By doing so, the ideas and desires to improve the welfare and increase the state income will be realized, especially in focusing corporate and government programs improving citizen’ economic and education, whose area becomes the location of oil and gas production.

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