Underkeel Clearance

1967 ◽  
Vol 20 (4) ◽  
pp. 363-387 ◽  
Author(s):  
A. F. Dickson

The problem of underkeel clearance is not new; since time immemorial navigators have been concerned to know the minimum depth of water in which they can sail with a ship of given draught. Until quite recently, underkeel clearance requirements were determined almost entirely empirically, and in many cases the rule of thumb values used can be shown to be greater than the requirement of navigational safety would dictate.In the years since the war the pattern of the oil industry has changed and very large ships are now commonly used to carry crude oil cargoes to a large number of ports around the world. It is obvious that use of these ships, with their deep draughts, has meant that a number of expensive dredging projects have been put in hand to provide adequate access to the ports served. Continuing escalation in size means this will probably continue.

Author(s):  
Vadim Ponkratov ◽  
Nikolay Kuznetsov ◽  
Nadezhda Bashkirova ◽  
Maria Volkova ◽  
Maria Alimova ◽  
...  

The decrease in the economic activity level around the world due to the COVID-19 pandemic spread has led to a sharp decrease in the crude oil price and provoked an oil war outbreak in the global energy market. The current situation has provoked the need for a total decrease in the crude oil production in the world. Considering that Russia is one of the main oil exporters on the world market, the need to determine the supply and demand levels for Russian oil is becoming relevant. The aim of the paper is to model predictive scenarios of Russian oil industry development, considering the specifics of the current economic environment given the COVID-19 pandemic. The multifactor correlation modeling method was used to form the system of indicators determining the level of demand and supply for Russian oil used and the total level of their influence. The functions determine the probability of implementing various scenarios of oil industry development depending on the predicted values of demand and supply. The three-sigma rule and the fuzzy sets method were used to estimate three scenarios of oil industry development for 2020–2021. Changes in revenues of the industry under the influence of forecast indicators of supply and demand for oil have been assessed and the probability of implementation of each of the scenarios has been reasoned. The results obtained are of a practical nature and can be used by government agencies, financial intermediaries, and scientists to diagnose Russian oil industry development. The results will be useful for oil companies to develop a strategy of open innovations for further design of the scientific information field for the effective functioning of the industry in complete uncertainty conditions.


2019 ◽  
Vol 3 ◽  
pp. 00013
Author(s):  
Danny Susanto

<p class="Abstract">The purpose of this study is to analyze the phenomenon known as&nbsp;<span style="font-size: 1rem;">“anglicism”: a loan made to the English language by another language.&nbsp;</span><span style="font-size: 1rem;">Anglicism arose either from the adoption of an English word as a&nbsp;</span><span style="font-size: 1rem;">result of a translation defect despite the existence of an equivalent&nbsp;</span><span style="font-size: 1rem;">term in the language of the speaker, or from a wrong translation, as a&nbsp;</span><span style="font-size: 1rem;">word-by-word translation. Said phenomenon is very common&nbsp;</span><span style="font-size: 1rem;">nowadays and most languages of the world including making use of&nbsp;</span><span style="font-size: 1rem;">some linguistic concepts such as anglicism, neologism, syntax,&nbsp;</span><span style="font-size: 1rem;">morphology etc, this article addresses various aspects related to&nbsp;</span><span style="font-size: 1rem;">Anglicisms in French through a bibliographic study: the definition of&nbsp;</span><span style="font-size: 1rem;">Anglicism, the origin of Anglicisms in French and the current situation,&nbsp;</span><span style="font-size: 1rem;">the areas most affected by Anglicism, the different categories of&nbsp;</span><span style="font-size: 1rem;">Anglicism, the difference between French Anglicism in France and&nbsp;</span><span style="font-size: 1rem;">French-speaking Canada, the attitude of French-speaking society&nbsp;</span><span style="font-size: 1rem;">towards to the Anglicisms and their efforts to stop this phenomenon.&nbsp;</span><span style="font-size: 1rem;">The study shows that the areas affected are, among others, trade,&nbsp;</span><span style="font-size: 1rem;">travel, parliamentary and judicial institutions, sports, rail, industrial&nbsp;</span><span style="font-size: 1rem;">production and most recently film, industrial production, sport, oil industry, information technology,&nbsp;</span><span style="font-size: 1rem;">science and technology. Various initiatives have been implemented either by public institutions or by&nbsp;</span><span style="font-size: 1rem;">individuals who share concerns about the increasingly felt threat of the omnipresence of Anglicism in&nbsp;</span><span style="font-size: 1rem;">everyday life.</span></p>


1986 ◽  
Vol 19 (5) ◽  
pp. 63-66 ◽  
Author(s):  
R C Gold

The article traces the use of flowmeters in the production and processing of crude oil and its refined products. Emphasis is placed on meters used for accounting purposes and wherever possible, the significance of measurement uncertainty at the various stages of oil production is expressed in financial terms. The article concludes that improved measurement accuracy is more likely to be achieved from improved calibration and operating procedures than from the use of different types of flowmeters.


2003 ◽  
Vol 185 ◽  
pp. 9-16

The outlook for world growth this year has deteriorated since April, due to a sharp contraction in world trade in the first quarter of the year and failure to sustain the revival in private sector investment seen in the fourth quarter of 2002. We have as a consequence revised our projections for world growth this year down by ¼ percentage point. This reflects sharp downward revisions of ½–¾ percentage points in the Euro Area and Canada, both of whose exchange rates have continued to appreciate in effective terms, while the outlook for the US and Japan is broadly unchanged. Growth in Japan and the Euro Area stagnated in the first half of 2003, with recessions in Germany, Italy, the Netherlands and Austria appearing likely. The US and Canada, on the other hand, continued to expand, albeit more slowly than in the second half of 2002. Following two years of exceptional weakness, Latin American growth has started to revive, although Venezuela is still suffering from the 2 month stoppage in the oil industry earlier this year and Argentina has lost competitiveness due to a strong appreciation against the dollar. Growth has slowed in several Asian economies, notably South Korea, but China continues to expand rapidly, spurred by the competitiveness impact of the dollar depreciation and infrastructure preparations for the 2008 Olympics. This has helped sustain export growth from the rest of Asia despite the more widespread slowdown in world trade.


2006 ◽  
Vol 4 (1) ◽  
pp. 351-356
Author(s):  
Marlena Owczuk

The development of the automotive industry in the world causes high environmental degradation, the main source of this degradation is engine emissions. It is necessary to introduce biofuels prepared from renewable energy sources to the market due to the limited reserve of crude oil and environmental protection. Appropriate new modifications in law regulations have been prepared in European Union. Introducing alternative fuels can reduce the emissions of harmful gases and also decrease the level of pollutions in the environment.


2021 ◽  
Vol 93 ◽  
pp. 05004
Author(s):  
Dmitry Rodnyansky ◽  
Ivan Makarov ◽  
Evgeniya Korotayeva ◽  
Vadim Kovrigin ◽  
Vladislav Nazarenko

In modern conditions, issues related to the effectiveness of the regulation of the oil industry by the state are becoming increasingly important. In January 2018, the World Economic Forum was held in Davos, which, in particular, noted the impact of the growth of protectionist trends in the global trade in hydrocarbons, and the impact of climate change on the planet on the export of hydrocarbons. As a result of the forum, the key ways of adjusting the policy of states in the relevant area were identified. At the same time, a significant number of states are already seeing the process of changing state regulation of the industry. In this article, the authors analyzed the systems of state regulation of the oil industry in different countries, and also gave assessments of the possibility of integrating new mechanisms into the system of sectoral management in Russia in the conditions of post-covid reality


TECHNOLOGOS ◽  
2020 ◽  
pp. 47-57
Author(s):  
Neroslov Alexey

In 1943, at the height of the Great Patriotic War, the new revolutionary drilling technique with high efficiency was used in Krasnokamsk oilfield of Molotov (Perm) Oblast for the first time in the world – the cluster turbodrilling method. The development of oil industry in Prikamye in the 1940s was associated with certain complications. The main deposits of the Krasnokasmk oilfield discovered before the war turned out to be located due to a number of reasons within the area of industrial and residential construction of the city of Krasnokamsk and under the Kama river and the Paltinskoye swamp close to the city. Conventional drilling methods could not be used for their development. The way out was to use the method of directional drilling that was little known at that moment. The development of the innovative technology in Krasnokamsk oilfield in 1942 was largely due to the involvement of the specialists of the Experimental Turbodrilling Bureau evacuated from Baku. Directional drilling which involved the deviation of the bottom hole (the ultimate lowest point of the well) from the wellhead (the initial uppermost location) by several hundred metres opened up broad opportunities for developing hard-to-recover oil deposits while significantly accelerating and ensuring cost savings of the drilling process. The directional drilling served as the basis for the development in Prikamye of an advanced technology of cluster drilling when several directional wells with different azimuths were drilled from a small well pad. In 1943–1944, cluster drilling was tested and successfully used in Krasnokamsk oilfield. The cluster drilling comprised an entire range of innovative solutions including the movement of assembled drilling rigs without dismantling power equipment. Also, it resulted in the reduction of total labour costs, scope of construction and assembly works, costs of building oilfield roads, power lines and pipelines, and transportation costs. People’s Commissariat of Oil Industry of the USSR initiated a large-scale rollout of the advanced method of cluster drilling in the largest oil-producing regions of the Soviet Union – Azerbaijan and the North Caucasus, and the area of the “second Baku” – Bashkiria, Tatary, and Kuybyshev oblast. The transition to the advanced and cost-saving technology of cluster drilling laid the foundation for the technical and economic revolution of the world drilling practices.


Author(s):  
S. A. Zolina ◽  
I. A. Kopytin ◽  
O. B. Reznikova

In 2018 the United States surpassed Saudi Arabia and Russia to become the largest world oil producer. The article focuses on the mechanisms through which the American shale revolution increasingly impacts functioning of the world oil market. The authors show that this impact is translated to the world oil market mainly through the trade and price channels. Lifting the ban on crude oil exports in December 2015 allowed the United States to increase rapidly supply of crude oil to the world oil market, the country’s share in the world crude oil exports reached 4,4% in 2018 and continues to rise. The U.S. share in the world petroleum products exports, on which the American oil sector places the main stake, reached 18%. In parallel with increasing oil production the U.S. considerably shrank crude oil import that forced many oil exporters to reorient to other markets. Due to high elasticity of tight oil production to the oil price increases oil from the U.S. has started to constrain the world oil price from above. According to the majority of authoritative forecasts, oil production in the U.S. will continue to increase at least until 2025. Since 2017 the tendency to the increasing expansion of supermajors into American unconventional oil sector has become noticeable, what will contribute to further strengthening of the U.S. position in the world oil market and accelerate its restructuring.  


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