scholarly journals The effect of foam quality, particle concentration and flow rate on nanoparticle-stabilized CO2 mobility control foams

RSC Advances ◽  
2019 ◽  
Vol 9 (16) ◽  
pp. 9313-9322 ◽  
Author(s):  
Chunkai Fu ◽  
Jianjia Yu ◽  
Ning Liu

CO2 foam is regarded as a promising technology and widely used in the oil and gas industry, not only to improve oil production, but also to mitigate carbon emissions through their capture.

2019 ◽  
Vol 11 (3) ◽  
pp. 523-551 ◽  
Author(s):  
Sani Damamisau Mohammed

Purpose Carbon emissions from gas flaring in the Nigerian oil and gas industry are both a national and international problem. Nigerian government policies to eliminate the problem 1960-2016 yielded little or no results. The Kyoto Protocol (KP) provides Clean Development Mechanism (CDM) as an international market-based mechanism to reducing global carbon emissions. Therefore, the purpose of this paper is to analytically highlight the potentials of CDM in eliminating carbon emissions in the Nigerian oil and gas industry. Design/methodology/approach This paper reviewed the historical background of Kyoto protocol, Nigerian Government policies to eliminating gas flaring in its oil and gas industry 1960-2016 and CDM projects in the industry. The effectiveness of the policies and CDM projects towards ending this problem were descriptively analysed. Findings Government policies towards eliminating gas flaring with its attendant carbon emissions appeared not to be yielding the desired results. However, projects registered under CDM in the industry looks effective in ending the problem. Research limitations/implications Therefore, the success recorded by CDM projects has the policy implication of encouraging Nigeria to engage on establishing more CDM projects that ostensibly proved effective in reducing CO2 emissions through gas flaring reductions in its oil and gas industry. Apparent effectiveness of studied CDM should provide a way forward for the country in eliminating gas flaring in its oil and gas industry which is also a global menace. Nigeria could achieve this by providing all needed facilitation to realising more CDM investments. Practical implications CDM as a policy has proved effective in eliminating gas flaring in the Nigerian oil and gas industry. The government should adopt this international policy to achieve more gas flaring reductions. Social implications Social problems of respiratory diseases, water pollution and food shortage among others due to gas flaring are persisting in oil and gas producing areas as government policies failed to end the problem. CDM projects in the industry have proved effective in eliminating the problem, thus improving the social welfare of the people and ensuring sustainable development. Originality/value The paper analysed the effectiveness of Nigerian Government policies and an international market-based mechanism towards ending gas flaring in its oil and gas industry.


Author(s):  
Arihant Sonawat ◽  
Abdus Samad ◽  
Afshin Goharzadeh

Flaring and venting contributes significantly to greenhouse gas emissions and environmental pollution in the upstream oil and gas industry. Present work focuses on a horizontal flow, multiphase ejector used for recovery of these flared gases. The ejector typically handles these gases being entrained by high pressure well head fluid and a comprehensive understanding is necessary to design and operate such recovery system. A CFD based analysis of the flow through the ejector has been reported in this paper. The flow domain was meshed and the mass and momentum equations for fluid flow were solved using commercial software CFX (v14.5). Euler-Euler multiphase approach was used to model different phases. The entrainment behavior of the ejector was investigated and compared for different fluid flow conditions. It was observed that for a fixed primary fluid flow rate, the entrained or secondary flow rate decreased linearly with an increase in pressure difference between exit and suction pressure. The higher was primary flow rate, the greater was the suction created ahead of the primary nozzle and greater was the amount of energy added to the entrained fluid.


2020 ◽  
Vol 6 (3) ◽  
Author(s):  
Mark Burghardt ◽  
Gage Hart Zobell

Oil and gas production continues to be an important sector of Utah’s economy. Following a 25% loss in production between 2014 and 2015, Utah’s production continues to slowly rebound. Crude oil production in 2019 appears to be slightly ahead of 2018 production. Monthly production averages slightly over three million barrels, placing Utah among the top ten states in crude oil production. Along with the continuing increase in production, the state’s legal framework governing oil and gas continues to develop. This Article examines recent changes in Utah statutes and regulations along with new case law developments involving the oil and gas industry. In particular, this Article discusses a recent federal bankruptcy decision involving midstream agreements, the revision to a Utah statute that now requires mandatory reporting of unclaimed mineral interests, and recent revisions to Utah’s oil and gas regulations.


2020 ◽  
Vol 8 (1) ◽  
pp. 126-130
Author(s):  
Camila Weisman

The oil and gas industry remains for Russia the most important source of income, a strategic industry. According to official figures of the Ministry of Finance of the Russian Federation, income from the oil and gas sector, according to the results of 2019, is 40% of the total budget of the country. A large volume of crude oil and gas is exported from the country. The tax burden on raw materials reaches up to 60% of the initial cost, which makes oil production at new fields extremely unprofitable. The most important direction for the country is the transition from a strategy for the sale of crude oil products to refined ones, which have an additional cost. The article discusses the features of domestic oil production, analyzes the reasons for overpriced in comparison with competitive raw materials from other oil producing leader countries. The strategy of ensuring the economic security of the industry is noted, the main tools are listed and the mechanisms for ensuring the economic security of petrochemical industry enterprises are presented.


2021 ◽  
Vol 61 (2) ◽  
pp. 347
Author(s):  
Simon Molyneux

The petroleum (oil, gas and LNG) business environment in 2020 was adverse. Two factors disrupted the foundations of the global oil and gas industry. First, the COVID-19 global pandemic caused an unprecedented reduction of demand that combined with high levels of production resulted in oversupply of oil, gas and LNG. This gap between supply and demand resulted in a collapse in commodity prices, reduced revenues and cancelling or deferral of investment. Second, societal awareness of the impact of climate change on planet Earth increased. Pressure to reduce carbon emissions and a concomitant societal-shift against carbon-emissions intensive petroleum-based forms of energy generation intensified. Many major players in the petroleum industry re-framed their strategies to focus on energy supply in general and in some cases plan to cease their exploration, development and production activities in the coming decades. In Australia, in part global factors manifested in the deferral of investment decisions on three LNG investments. The Australian Government signalled that gas developments would be a critical part of Australia’s post-COVID recovery and that management of abandonment and decommissioning liabilities would be a factor in the approval of transactions leading to a change in ownership. This paper will describe each of the factors faced by the industry in 2020 and frame the issues facing the petroleum industry in 2021 and beyond.


2021 ◽  
Author(s):  
Matthew Nakatsuka ◽  
Basile Marco ◽  
Sumil Thapa ◽  
Alexander Ventura ◽  
Osvaldo Pascolini ◽  
...  

Abstract Fouling of heat exchanger equipment through the formation and attachment of hard scale, microbially induced corrosion (MIC) products, or particulate erosion is a serious challenge to reliable production in the oil and gas industry. Exchangers which become fouled in this way perform 15-30% worse than their rated ability, requiring either constant intervention to clean away biofilms, continuous injection of biocides and corrosion inhibitors, or the regular plugging of tubes to prevent leaks, representing a significant operating expense and billions of dollars in lost production time. When an exchanger is unable to provide sufficient heat due to tube fouling, additional sources of heating must be utilized to make up for this deficit and to ensure that facility processes remain within design allowances. This need for supplemental heating is a significant source of carbon emissions in the industry and represents a significant obstacle towards decarbonization efforts. However, it also represents an economically attractive way to simultaneously lower emissions while also lowering a producer's cost per barrel. This work describes an alternate strategy to control and prevent fouling in heat exchangers, through the one-time application of an omniphobic (water- and oil-repelling) nano-surface treatment. Once applied to a heat exchanger, the extremely smooth and low-surface energy material greatly reduces the ability of MIC-causing bacteria to deposit and adhere to the surface. Because it imparts functionality to the surface itself, rather than simply function as a physical barrier, it enables long lasting protection which was validated under laboratory conditions in a pressurized autoclave, as well as two pilot demonstrations. Results from both the laboratory and field evaluations of the treatment's promise showed that treated surfaces showed a corrosion rate over 36-times lower when compared to untreated surfaces, while also completely arresting the formation of corrosion pitting, tube fouling, and erosion of the tube interior. These field-validated results were then applied to the observed heating deficit of a proposed deployment site, resulting in calculated carbon emissions savings of up to 17,000 Tons CO2 per year.


2018 ◽  
Vol 7 (3.21) ◽  
pp. 10
Author(s):  
Wiwiek Mardawiyah Daryanto ◽  
Dety Nurfadilah

Indonesia’s oil and gas industry is the huge contributor to government export revenues and foreign exchange and contributes a substantial amount to state revenue. However, the total of oil production declined around 4,41% per year since 2007, and the sharpest decline was in 2013. This situation gives impact to the performance of oil and gas industry, especially government revenues. Therefore, the purpose of this study is to measure the financial performance of Oil and Gas Industry and to examine the significance differences between the financial performance before and after the decline in oil and gas production. The data were collected from financial report and the period was divided into two periods, before the decline in production (2011 – 2012) and after the decline in production (2014 – 2015). Paired sample t-test and financial ratio analysis (FRA) were used to analyzed the data. The finding shows that the largest oil and gas company in Indonesia is still in good financial condition, although it gained loss. In addition, current ratio and return on equity had significance difference during the period of before and after a decline in oil and gas production. The authors believe that the findings will be helpful for managers who continuously attempt to explore opportunities to provide a higher return. 


2019 ◽  
Vol 89 (11) ◽  
pp. 1095-1104 ◽  
Author(s):  
Alexey E. Kontorovich ◽  
Lev M. Burshtein ◽  
Valery R. Livshitc ◽  
Svetlana V. Ryzhkova

This paper discusses the most important aspects of the development of the oil and gas industry in Russia. To replace declining oil production in Russia, we need to change the obsolete paradigm of the development of the domestic resource base. In the twenty-first century, the priority tasks in the search for oil deposits should be the Russian Arctic shelves and immature onshore provinces as well as unique unconventional oil accumulations (Bazhenov, Domanik, Khadum, Kuonamka Formations, etc.). In addition, special focus should be placed on the exploration of small and smallest oil and gas fields, which will be developed with the collaboration of small- and medium-sized oil businesses to ensure up to 20% of domestic oil production. The shift from extensive to intensive development of Russias oil and gas sector will require the prioritizing of technological tasks.


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