نتایج جستجو برای: crude oil supply chain

تعداد نتایج: 585418  

2006
Yossi Sheffi

The upstream petroleum supply chain is inefficient and uneconomical because of the independence of the four complex and fragmented functions which comprise it. Crude oil exploration, trading, transportation, and refining are functions which may be integrated through unified decision-making facilitated by timely information exchange. This exchange has been problematic because the four business u...

Journal: :Polish journal of microbiology 2015
Yumei Sun Zhanguo Ning Fan Yang Xianzhen Li

An obligately thermophilic strain ZY-10 was isolated from the crude oil in a high-temperature oilfield, which was capable of degrading heavy crude oil. Phenotypic and phylogenetic analysis demonstrated that the isolate should be grouped in the genus Geobacillus, which shared thd highest similarity (99%) of the 16S rDNA sequence to Geobacillus stearothermophilus. However, the major cellular fatt...

Journal: :Bioresource technology 2015
Arunima Malik Manfred Lenzen Peter J Ralph Bojan Tamburic

The objective of this work is to establish whether algal bio-crude production is environmentally, economically and socially sustainable. To this end, an economic multi-regional input-output model of Australia was complemented with engineering process data on algal bio-crude production. This model was used to undertake hybrid life-cycle assessment for measuring the direct, as well as indirect im...

Journal: :Computers & Chemical Engineering 2013
Thordis Anna Oddsdottir Martin Grunow Renzo Akkerman

This paper addresses procurement planning in oil refining, which has until now only had limited attention in the literature. We introduce a mixed integer nonlinear programming (MINLP) model and develop a novel two-stage solution approach, which aims at computational efficiency while addressing the problems due to discrepancies between a non-linear and a linearized formulation. The proposed mode...

2010
Jago Dodson Neil Sipe

This paper investigates oil vulnerability in Australian cities and the implications of this problem for Australian urban planning and planning elsewhere. The paper has four objectives. First, the paper investigates the changing global petroleum supply context and potential future supply trajectories. Second, the paper uses the notion of ‘oil vulnerability’ to investigate how such a changing glo...

2013
Dr. Kapil Jain

Crude oil is one of the most necessitated worldwide required commodities. Any slight fluctuation in crude oil prices can have both direct and indirect influence on the economy of the countries. The unpredictability of crude oil prices forced many companies away from the competition and it influence the stock market and many other macroeconomic variables (inflation, GDP, Import bill etc). Crude ...

2013
Jochen H. F. GÜNTNER Jochen H. F. Güntner Jochen Güntner

This paper analyzes the response of international oil producers to demand-induced changes in the real price of oil during 1975–2011. The goal is to disentangle fluctuations in OPEC and non-OPEC production and to derive consistent estimates of the short-run price elasticity of crude oil supply at the country level. I find that oil producers hardly respond to demand shocks within the same month, ...

2007
Christopher M. Chima

The oil and gas industry is involved in a global supply-chain that includes domestic and international transportation, ordering and inventory visibility and control, materials handling, import/export facilitation and information technology. Thus, the industry offers a classic model for implementing supply-chain management techniques. In a supply-chain, a company is linked to its upstream suppli...

Significant decline in the slope of short-term oil supply and demand curves, along with the meaningful change in the degree of risk aversion in arbitrageurs encouraged us to test the time-varying effects of speculative demand on crude oil price dynamics over the period 1985-2016. Using a time-varying parameter vector autoregressive (TVP-VAR) model – with structural shocks identified by Killian ...

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