scholarly journals Estimating GHG Emission Level from Oil and Gas Offshore Production Facility

2020 ◽  
Vol 202 ◽  
pp. 09004
Author(s):  
Satya Pinem ◽  
Mahawan Karuniasa ◽  
Chairil Abdini

Oil and gas (O&G) production activities emits greenhouse gases (GHG) which must be well estimated to improve accountability and formulating efficient mitigation. The Indonesia’s GHG emission reported thru Nationally Determined Contribution (NDC) was estimated by Tier-1 Intergovernmental Panel on Climate Change (IPCC) method, while the O&G company adopts different methodology. This leads to asynchronous GHG emission contribution of this industry to national GHG emission. This paper aims to estimate the GHG inventory from O&G offshore production facility by using American Petroleum Institute (API) Compendium Methodology and compare it with Tier-1 IPCC Methodology. It found that GHG emission estimated by API method is significantly lower than IPCC method. Both methods shown fuel combustion sources are the dominant. GHG emission sources from fuel combustion and flaring have been well identified, but emission sources from venting and fugitive need to be improved. Moreover this study identified that to have more accurate national GHG inventory, the GHG calculation method might be different for each industry segment. This evaluation could improve the future national GHG inventory and as reference for the industry. National emission factors database for O&G industry segment is highly suggested to be developed.

Energies ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 529
Author(s):  
Asta Mikalauskiene ◽  
Justas Štreimikis ◽  
Ignas Mikalauskas ◽  
Gintarė Stankūnienė ◽  
Rimantas Dapkus

The paper performed comparative assessment of greenhouse gas (GHG) emission trends and climate change mitigation policies in the fuel combustion sector of selected EU member states with similar economic development levels and historical pasts, and implementing main EU energy and climate change mitigation policies, having achieved different success in GHG emission reduction. The impact of climate change mitigation policies on GHG emission reduction was assessed based on analysis of countries’ reports to UNFCCC by identifying the key areas of GHG emission reduction, their GHG emission reduction potential, and the driving forces behind them. The study revealed that climate change mitigation policies that have been implemented so far in Bulgaria are less efficient than in Lithuania, as Bulgaria places priorities not on energy efficiency improvement and penetration of renewable energy sources, but on switching from coal to natural gas. The policy implications for strengthening GHG emissions reduction efforts are provided based on analysis conducted.


Forests ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1265 ◽  
Author(s):  
Katherine M. Goslee ◽  
Timothy R. H. Pearson ◽  
Blanca Bernal ◽  
Sophia L. Simon ◽  
Hansrajie Sukhdeo

Completeness is an important element for Reducing Emissions from Deforestation and forest Degradation (REDD+) accounting to ensure transparency and accountability. However, including a full accounting for all emission sources in a REDD+ program is often resource-intensive and cost-prohibitive, especially considering that some emission sources comprise far less than 10% of total emissions and are thus considered insignificant according to Intergovernmental Panel on Climate Change (IPCC) guidance. This is evident in forest reference emission level (FREL)/forest reference level (FRL) submissions to the United Nations Framework Convention on Climate Change (UNFCCC). Of the 50 countries that have submitted FRELs to date, only half of them include degradation in their FRELs even though degradation is often a significant source of emissions. Half of the countries that do include degradation use satellite imagery without necessarily specifying degrading activities or separating anthropogenic activities. Guyana provides an example of an approach that enables inclusion of all emission sources while considering the significance of each when developing an accounting approach. Since submitting its FREL in 2014, Guyana has made stepwise improvements to its emission estimates so that the country is now able to report on all deforestation and degradation activities resulting in emissions, whether significant or not. Based on the example of Guyana’s efforts, the authors recommend a simple approach to move towards complete accounting in a cost-effective manner. This approach can be scaled to other countries with other activities that results in greenhouse gas emissions from deforestation and forest degradation. Such complete accounting allows for higher accountability in REDD+ systems and can lead to greater effectiveness in reducing emissions.


2018 ◽  
Vol 7 (4.35) ◽  
pp. 73
Author(s):  
E. K. Peng ◽  
M. A. Malek ◽  
N. Azimah Bahrum ◽  
C. S. Tan

Greenhouse gases (GHG) exist in the world and lead to more heat being trapped. The study belongs to part of initiatives to establish GHG emission from Agricultural Forest Land Use (AFOLU) at Sarawak, Malaysia. The study implements Tier 1 methodology of 2006 IPCC (Intergovernmental Panel on Climate Change) Guidelines to estimate carbon dioxide (CO2) emissions from cropland remaining cropland in Sarawak, in which uncertainty analyses are included. The study aids in establishing the quantity as well as trending of CO2 emissions from crops such as fruit trees, cocoa, pepper, rubber and palm oil cultivated in non-urban and non-rural areas of Sarawak from year of 2008 to 2012. Based on this study, it is found that Miri is the highest CO2 emitter from palm oil as compared to other districts with total amount of 681.55 kt C/year. It is also found that CO2 emission from crops cultivated in Limbang (non-urban) is the lowest with total values of 35.84 kt C/year, 16.16 kt C/year, 0.13 kt C/year and 5.08 kt C/year for palm oil, rubber, pepper and fruit trees respectively. Generally, results obtained from this study showed that at most districts in Sarawak, palm oil plantations produce the highest CO2 emission demonstrating increasing trend through-out the study duration, while the rubber plantations ranked second. Estimated emission values of CO2 can be used for planning and mitigation purposes at various level of confidence.


2020 ◽  
Vol 3 (2) ◽  
Author(s):  
Muhammad Nabeel Ashraf, Prof. Dr. Syed Shabib-ul-Hassan

Hamdard University is one of the biggest private sector universities in Pakistan. It is a not-for-profit organization whose objective is to serve people of Pakistan with excellent education system while taking care external factors into consideration, as a part of its Corporate Social Responsibility (CSR), especially the environment which is a key concern due to the climate change. This research paper focusses on measuring the carbon footprint or performing the carbon accounting of Hamdard University and to measure its share in climate change. Primary data, which is necessary to measure carbon footprint, have been taken by direct reporting and site surveys. Methodology and secondary data regarding the emission factors have been taken from Intergovernmental Panel on Climate Change, World Resources Institute, Word Bank, Greenhouse Gas Protocol, and U.S. Environmental Protection Agency. The carbon footprint of Hamdard University is 1786.2019 tonnes of CO2-e in 2018 which is 0.000547% of Pakistan 2014’s total GHG emission. Scope 1 emission constitutes 54.14% of total GHG emission which is mostly caused by the fuel combustion by varsity’s transport followed by scope 2 emission caused by purchased electricity which constitutes 45.32% of GHG total emission. Scope 3 emission is because of official air travel which is not significant, hence, constitutes 0.54% of total GHG emission.


2021 ◽  
Vol 73 (10) ◽  
pp. 6-7
Author(s):  
Kamel Ben-Naceur

The oil and gas industry is recovering along with the health situation and the world’s economy following one of the largest downturns in its 160-year history caused by the COVID-19 pandemic. What comes ahead brings its own challenges. The recent Intergovernmental Panel on Climate Change’s (IPCC) Working Group 1 contribution to the IPCC’s Sixth Assessment Report, Climate Change 2021: The Physical Science Basis, published in August, highlighted the “widespread and rapid acceleration of climate change,” with the 1.5°C threshold reached as early as the end of this decade. The dramatic weather events around the globe this summer (in the Northern Hemisphere) with historical temperature records on the North American Pacific Coast and in the central and eastern Mediterranean regions, and huge fires impacting those regions and others such as Siberia, were a reminder that the transformation is occurring now. In this context, the energy mix that the world uses today needs to evolve to a more rational use through energy efficiency and with a lower carbon content, starting from the use of coal. The oil and gas industry has been pioneering the development of technologies such as carbon capture and underground storage and blue hydrogen. International oil companies and national oil companies rank amongst the largest technology investors in renewables and energy storage. Renewables also have a strong potential in applications such as steam injection. Collaboration among the industry and with other peripheral sectors will be an essential ingredient to accelerate the transformation of the energy sector. I personally started in the oil and gas industry more than 4 decades ago in research and development (R&D) with a large oilfield service company, where I led a team of scientists investigating hydraulic fracturing. One of the projects was related to acid fracturing, which required the injection of a viscous non-Newtonian pad to fracture the formation and keep the fracture open, followed by acid which had a much lower viscosity. The two-fluid displacement inside the fracture led to an instability called viscous fingering. In order to understand the phenomenon, we put together a very diverse team, comprising a mathematician, an astrophysicist, a physicochemist, and a geologist. The team was unable to initially work well together and collaborate. The breakthrough came when a high-level scientist from Boston University, a specialist in critical phenomena, was added as a catalyst to the team. Within a few months, the team managed to develop and validate a model for viscous fingering using diffusion-limited aggregation and fractal theory, and its work was published in Nature and the American Physical Society’s Physical Reviews Journals. The team then developed a new set of models for wormholes created by the injection of acid through matrix acidizing and fracture acidizing which were used to create the required chemistry to ensure effectiveness of the treatments. I remain convinced that if we had not included the diversity of the skills and used a catalyst for collaboration, we would not have cracked the research code so rapidly.


Atmosphere ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 392
Author(s):  
Elżbieta Wójcik-Gront

The vast majority of the scientific community believe that anthropogenic greenhouse gas (GHG) emissions are the predominant cause of climate change. One of the GHG emission sources is agriculture. Following the International Panel on Climate Change (IPCC) guidelines regarding GHG emission calculation, agriculture is responsible for around 10% of the overall global emissions. Agricultural GHG emissions consist of several emission source categories and several GHGs. In this article were described the results of multivariate statistical analyses performed on data gathered during the period 1990–2017 from the inventories of 43 Annex I countries (parties to the United Nations Framework Convention on Climate Change, UNFCCC, listed in Annex I of the Convention). Trends in the agricultural GHG emissions were analyzed. Generally, the global agricultural GHG emissions are increasing, while the emissions from Annex I countries are decreasing. Apart from the application of urea, emissions from all other sources, such as enteric fermentation, manure management, rice cultivation, agricultural soils, field burning of agricultural residues, and liming are decreasing. Based on multivariate analysis, the most different countries, in terms of GHG emission sources composition in agriculture and emission trends, are Australia, Japan, New Zealand and USA. The rest of the Annex I countries are mostly from Europe and their shares and trends are similar, with slight differences between countries depending, among others, on the date of joining the European Union.


2021 ◽  
Author(s):  
Yashesh Panchal ◽  
Nihal Mounir ◽  
Mehdi Loloi ◽  
Ibrahim Mohamed ◽  
Omar Abou-Sayed ◽  
...  

Abstract Carbon offset describes the environmental benefit from an initiative that avoids, reduces or removes greenhouse gases (GHGs) from the atmosphere. The Intergovernmental Panel on Climate Change has identified Carbon Dioxide (CO2), Methane (CH4) and Nitrous Oxide (N2O) as major constituent of the GHGs. Wastewater Treatment Facilities (WWTFs) among several other sectors is a neglected source for GHG emission. Considering the risk of rise in GHGs, United States along with other countries signed the Paris Agreement to respond to the global climate change threat in 2016. It is assessing projects to cut GHGs in exchange for emission credits that can be used to comply with goals they set under the United Nations pact. In order to curb the GHG emission by WWTFs, an innovative approach "Bioslurry Injection" (BSI) can be implemented to reduce the emission of the GHGs produced during the course of biological and chemical treatment of wastewater. The technology is inherited from the traditional drill cutting injection and Carbon sequestration technology implemented by the Oil and Gas industry since 1980's. The BSI operation has the ability to accept the feed from different treatment stages after the initial screening process to prepare the injection slurry and help in controlling the GHG emission at respective treatment stage along with managing the intake volume. The slurry can be prepared by mixing the treated biosolids with wastewater and injected into a pre-selected underground earth formation, where biosolids undergo anaerobic digestion and decompose into CO2 and CH4. An injection formation with sufficient capacity to accept the slurry is selected by conducting a detailed geomechanical and fracture simulation analyses. Along with the injection feasibility, the calculations of the amount of Carbon dioxide equivalent (CO2e) sequestrated underground by implementing BSI technique is presented in this paper. The sequestration of decomposed GHGs is an environmentally friendly activity that has proved to be economically beneficial due to its ability to earn carbon offsets. According to the new carbon law in the state of California the amount of CO2e eliminated from the atmosphere can be traded to earn carbon credits. TIRE facility through its ability to sequester and thus eliminate emission of the GHGs from the atmosphere can gain up to $1.5M worth of carbon credits per year providing both environmental and economic benefit. Also, low capital and operating cost for the BSI facility due to its compact surface requirement is an additional advantage along with reduced risk of spillage hazard when BSI facility is incorporated within the WWTF boundaries.


2021 ◽  
Author(s):  
Saltanat Koishymanova ◽  
Danil Kayashev ◽  
Brian Schwanitz ◽  
Tolegen Sadvakassov ◽  
Yury Ponomarenko

Abstract The transition to a climate-neutral society is both an urgent technical challenge and yet long-term CAPEX heavy requiring huge investments from industry and governments. Major oil and gas (O&G) operators around the globe have already established their decarbonization targets and even though upstream accounts for two-thirds of total emissions in the petroleum industry, both new well construction designs, and improved workover operations are proving to be effective measures in minimizing greenhouse gas (GHG) emissions while being economically viable. A novel completion technology has been installed in 114 wells in Russia since 2018 to eliminate sustained annular casing pressure (SAP) throughout the lives of wells and combat the associated release of carbon dioxide (CO2) and methane into the atmosphere. Since methane is much more powerful and has a 28-34 times more global warming potential compared to CO2 over the hundreds of years, and 84-86 times more potent over a 20-year timeframe respectively, these types of simple, yet efficient solutions represents enormous benefits to operators in reducing their carbon taxes while tackling climate change. Moreover, the installation of this technology resulted in reliable downhole well integrity of traditionally problematic wells, without the need for subsequent squeeze cementing operations. These types of completion solutions set both in an open and cased hole, allow operators not just to customize their cementing program and meet regulatory approvals, but also greatly reduce their reported carbon emissions. A summary of the results and efficiencies achieved with these installations will be presented and will be compared to conventional technologies. In addition, more than 15,000 lightweight e-line intervention operations have been performed both in Russia and Kazakhstan since 2011 which contributed to fewer emissions of hazardous greenhouse gases into the air versus conventional coiled tubing operations. These types of light interventions use less diesel to operate and with fewer people and equipment, leave a smaller carbon footprint on each well location which in turn makes a difference when it comes to GHG emission reduction. A comparison breakdown of coiled tubing versus e-line mechanical interventions will be statistically analyzed. This paper will illustrate how these newer technologies contributed to GHG emission reduction and how simultaneously economical efficiencies were achieved during well completion and intervention activities through reduced rig time and faster job execution compared to conventional methods. It will also review case histories from fields across the region using these installations and analyze each method. The field data will present the development, installation, and operational sequence and explain how each setup was tailored to meet both specific operational needs and to reduce greenhouse emissions, mainly by minimizing gas flaring. Widespread implementation of such technologies would help operators meet their emission targets and contribute to the reduction of the earth's climate change.


2014 ◽  
Vol 931-932 ◽  
pp. 645-649 ◽  
Author(s):  
Chhay Hoklis ◽  
Alice Sharp

The municipal solid waste management (MSWM) is one major concern in Cambodia due to complicated problems from waste sector. Until now, because of poor MSWM, solid wastes have produced high pollution, like methane (CH4), nitrous oxide (N2O), and carbon dioxide (CO2), which are the substances of greenhouse gas affect to climate change. Therefore, this study was undertaken to estimate and compare the greenhouse gas (GHG) emission from municipal solid waste in different cities namely; Phnom Penh, Battambang, and Siem Reap of Cambodia. GHG emission was calculated through Intergovernmental Panel on Climate Change (IPCC) calculator 2006 based on secondary data of 2009 for all cities. In order to reduce the GHG emission, four scenarios were proposed with different waste treatment technologies such as composting, anaerobic digestion, waste reduction at landfill by separating waste for recycling before disposal off in landfill, and landfill with gas recovery as well. Additionally, the multiple benefits of implementing the proposed scenarios may include reduction of GHG emission, promotion of energy saving for landfill operation, and promotion of the renewable energy concept like electricity.


Sign in / Sign up

Export Citation Format

Share Document