scholarly journals Environmental Vulnerability in Pre-Salt Oil and Gas Operations

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 732
Author(s):  
Tatiana Farane Mein ◽  
André Luiz Veiga Gimenes ◽  
Eduardo Mario Dias ◽  
Maria Lídia Rebello Pinho Dias Scoton ◽  
Miguel Edgar Morales Udaeta
Keyword(s):  
Environmental Impact ◽  
Oil And Gas ◽  
Vulnerability Index ◽  
Gas Production ◽  
Gas Extraction ◽  
Oil And Gas Production ◽  
Environmental Vulnerability ◽  
Production Stages ◽  
Oil And Gas Operations

The objective of this work is to analyze disturbances in the environment caused by anthropic activities in the oil and gas extraction sector. Methodologically, focusing on environmental vulnerability (EV), hydrocarbons (oil and gas) are considered through a qualitative and quantitative analysis of environmental impacts, including the research of Environmental Impact Studies and procedures like EIA/RIMA (institutional Environmental Impact Reports in Brazil). This study focuses on the operation and demobilization of the offshore drilling activity and the installation and operation of the Santos Basin pre-salt oil and gas production (Stages 1, 2, and 3). The criteria addressed in the EIA/RIMAs are used, focusing on those that correlate with EV and oil and gas extraction. Impacts for long-term, permanent, partially reversible, or irreversible disturbances are filtered, totaling 53 impacts (31 effective/21 potential). We concluded that the criteria and methodologies of EIAs vary between stages. At times, the variation is so drastic that the same impact can have a completely different rating from one stage to another, despite referring to the same area. This condition makes it impossible to define a single vulnerability index for the pre-salt venture. This work does not offer a concrete resolution, but exposes the EV issue and its inconsistencies.

scholarly journals Issues in Energy Vulnerability Assessment: Looking for a Sustainable Choice of Natural Resource for Power Generation

Proceedings ◽  
2020 ◽  
Vol 58 (1) ◽  
pp. 30
Author(s):  
Tatiana Farane Mein ◽  
André Luiz Veiga Gimenes ◽  
Miguel Edgar Morales Udaeta ◽  
Eduardo Mario Dias ◽  
Stefania Gomes Relva
Keyword(s):  
Power Generation ◽  
Environmental Impact ◽  
Oil And Gas ◽  
Final Analysis ◽  
Vulnerability Index ◽  
Gas Production ◽  
Qualitative And Quantitative Analysis ◽  
Offshore Drilling ◽  
Oil And Gas Production

The objective of this work is to analyze, through environmental vulnerability (EV), disturbances in the environment caused by anthropic activities for the production of energy resources, focusing on the power generation sector. Methodologically, hydrocarbons (oil and gas) and solar are considered through a qualitative and quantitative analysis of environmental impacts, including the research in Environmental Impact Studies and procedures like EIA/RIMA (institutional Environmental Impact Reports in Brazil). This study focuses on operation and demobilization of offshore drilling activity, and installation and operation of the Santos Basin pre-salt oil and gas production and disposal activity Stages 1, 2, and 3. The criteria addressed in the EIA/RIMAs are used, focusing on those that correlate with EV and the production of electricity. Impacts for long-term, permanent, partially reversible, or irreversible disturbances are filtered, totaling 53 impacts (31 effective/21 potential). We concluded that the criteria and methodologies of EIAs vary between stages. At times, the variation is so drastic that the same impact can have a completely different rating from one stage to another, despite referring to the same area. This condition makes it impossible to define a single vulnerability index for the pre-salt venture. For a final analysis, we propose a cleaner energy production through distributed photovoltaic systems as a more adequate alternative for São Paulo’s energy supply in terms of its impact on EV.

scholarly journals Perspectives for use of hydraulic fracturing in oil and gas production

2014 ◽  
Vol 67 (4) ◽  
pp. 373-378 ◽  
Author(s):  
Carlos Mouallem ◽  
Wilson Trigueiro de Sousa ◽  
Ivo Eyer Cabral ◽  
Adilson Curi
Keyword(s):  
Hydraulic Fracturing ◽  
Environmental Impacts ◽  
Groundwater Level ◽  
Oil And Gas ◽  
Gas Production ◽  
Gas Extraction ◽  
Oil And Gas Production ◽  
High Productivity ◽  
Oil Exploitation ◽  
The World

Hydraulic fracturing emerges currently, all over the world, as one of the more strategic techniques used by companies in the oil exploitation sector. This technique is characterized by its high productivity and profit in relation to conventional methods of hydrocarbon exploitation. However, in many countries, as is the case of Brazil, there are several divergences considering the employment of this methodology. Many renowned researchers attest that there are several irreversible environmental impacts generated by the use of this methodology. Among the main environmental impacts are the risk of groundwater level contamination, the risk of surface subsidence, and the risk of the environment contamination with fluids used in the process of the oil and gas extraction.

Establishing Operational Fatigue Limits for Short-Term Riser Operations

2015 ◽  
Author(s):  
Shankar Sundararaman ◽  
Mark Cerkovnik ◽  
Luiza Ferreira ◽  
Phil Ward
Keyword(s):  
Oil And Gas ◽  
Water Environment ◽  
Fatigue Analysis ◽  
Gas Production ◽  
Oil And Gas Production ◽  
Environmental Event ◽  
Internal Fluid ◽  
Operating Limits ◽  
Time Required

Drilling and intervention risers are widely used for oil and gas production in deep as well as shallow waters in oil fields around the world for subsea operations. The risers come in a diverse array of configurations, some of which may be challenged by fatigue if operated in high currents or seastates. The suitability of the selected riser and the operating limits are assessed by conducting strength and fatigue analysis based on design codes such as API RP 2RD, [7], API RP 16Q, [9], and API RP 17G, [10]. Typically, drilling and intervention activities are conducted for short periods of time but used repetitively. The codes are clear about the return period of the design environmental event which must be checked to insure safe operation with respect to strength; however, assessment of fatigue integrity can be more difficult to determine. The allowable fatigue operating environment should account for the ability to disengage, the time required to disengage, the damage rates in particular seastates, prior accumulation of fatigue damage, and variations in soil, tension and internal fluid weights. In this paper, an orderly method of establishing the allowable fatigue operation limits for drilling and intervention risers is presented based on Monte Carlo simulations along with a case study implementing the methodology in a shallow water environment. To illustrate this concept, a riser with wellhead and conductor system is assessed and is subjected to directional loading from several long-term seastates. The variation in effects is studied by doing fatigue analysis for different durations: 3 days, 1 week, 3 months, 1 year and 10,000 hours.

Economic woes to drive Greenland's hydrocarbons effort

2015 ◽  
Keyword(s):  
Oil And Gas ◽  
Gas Production ◽  
The Arctic ◽  
Oil And Gas Production ◽  
Content Type ◽  
New Generation ◽  
Economic Ties ◽  
Opening Up ◽  
The Eu

Subject Prospects for the hydrocarbons sector under the new government Significance After three years of GDP contraction, a new government is pursuing increased foreign investment in hydrocarbons, to boost employment and growth and to repair the budget. In the long term, Greenland is likely to emerge as an international shipping, mining and hydrocarbons centre. For now, the fall in the international oil price has seen oil exploration stop. The wish for economic development is leading a new generation of Greenlandic politicians to embark on re-integration with the EU, where a ban on seal products is the greatest obstacle to closer ties. Impacts Infrastructure and climate challenges mean that full-scale oil and gas production is at least 15-20 years away. Emerging Greenland-China economic ties may create a new alignment in the opening up of the Arctic. A relaxation of the EU seal products ban would ease negotiations on Greenland's further integration with the bloc. Enhanced EU-Greenland ties could extend the EU's role in the Arctic.

Esso Australia’s long-term contribution to the east coast gas market

2019 ◽  
Vol 59 (3) ◽  
Author(s):  
Nathan Fay
Keyword(s):  
Joint Venture ◽  
Oil And Gas ◽  
Free Market ◽  
Supply And Demand ◽  
Petroleum Industry ◽  
Gas Production ◽  
Oil And Gas Production ◽  
The Right ◽  
Gas Supply

This year marks the golden jubilee of Australia’s offshore petroleum industry after the first gas was produced from Bass Strait by Esso and BHP’s Gippsland Basin Joint Venture. For half a century our industry has been driven by technology – pioneering technical excellence and pushing the envelope in the pursuit of much needed oil and gas production. Today, the landscape in East Australia is changing and gas is at the forefront of the discussion. Declines in East Australia’s historical conventional fields have seen gas supply tighten and prices rise. There is a strong need for additional affordable and reliable gas supply. While continued improvements in technology remain a critically important enabler in developing Australia’s gas resources; global supply and demand, regulatory frameworks, and the commercial arrangements that underpin new developments are becoming more and more important. ExxonMobil Australia’s new Chairman, Nathan Fay, has a wealth of experience working with gas markets around the world. He will explain why it is so important for policymakers to establishment a stable free market environment to encourage these long-term relationships. To view the video, click the link on the right.

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