نتایج جستجو برای: petroleum engineering

تعداد نتایج: 278224  

2012
Ning Jing Honghai Fan Yinghu Zhai Tianyu Liu

With the development of petroleum informatization and increase of drilling data, data storage, analysis and integration is attached to the key planning process. Therefore, a solution is needed which combines the data integration, management, analysis and decision support. Data warehouse is one of the hot topics in computer technology application, which has solved the problem of data using after...

2016
Liwei Chen Jaslyn Lee Wei Ning Chen

Production of fatty acid-derived biofuels and chemicals have garnered attention in recent years owing to their potential to replace petroleum and plant oil-derived products. Through the metabolic engineering of the fatty acid metabolism pathway, advanced fuels and chemicals such as free fatty acid, triacylglycerol, biodiesel, fatty alcohols, alkanes/alkene, R-3-hydroxybutyric acid, polyhydroxya...

2010
Suresh Kumar

ABSTRACT Modeling of fluid flow and solute transport through fractured rock is an important component of engineering analysis in many disciplines including groundwater contamination, nuclear waste disposal, petroleum and gas production, mine excavation and geothermal production. Several studies have been conducted on single rock fracture using parallel plate model. An attempt has been made to s...

Journal: :CoRR 2008
Siddhartha Mishra Jérôme Jaffré

When neglecting capillarity, two-phase incompressible flow in porous media is modelled as a scalar nonlinear hyperbolic conservation law. A change in the rock type results in a change of the flux function. Discretizing in one-dimensional with a finite volume method, we investigate two numerical fluxes, an extension of the Godunov flux and the upstream mobility flux, the latter being widely used...

2005
Georg Pölzlbauer Michael Dittenbach Andreas Rauber

The Self-Organizing Map has been successfully applied in numerous industrial applications. An important task in data analysis is finding and visualizing multiple dependencies in data. In this paper, we propose a method for visualizing the Self-Organizing Map by decomposing the feature dimensions into groups with high correlation or selections by domain experts. Using Gradient Visualization we p...

2000
D. M. Jones

A method is described for extracting the petroleum from petroleum-bearing ̄uid inclusions hosted in the diagenetic cements of sedimentary rocks, whilst minimising contamination from petroleum in the pore space. A clean-up technique, involving the addition of extraction standards to the rock prior to analysis, has been developed that allows increased con®dence that the hydrocarbons extracted are...

2012
Michael D. Mitchell Walter E. Beyeler Matthew Antognoli Marshall A. Kuypers Robert J. Glass

Unexpected price spikes in petroleum can lead to instability in markets and have a negative economic effect on sectors which rely on petroleum consumption. Sudden rises in the price of petroleum do not have to be long-term to cause negative, cascading impacts across the economy. Firms which make futures purchases or hedge against a higher price during a price spike can become insolvent when the...

Journal: :Biology letters 2010
Ming Nie Qiang Yang Li-Fen Jiang Chang-Ming Fang Jia-Kuan Chen Bo Li

Biomass allocation is an important plant trait that responds plastically to environmental heterogeneities. However, the effects on this trait of pollutants owing to human activities remain largely unknown. In this study, we investigated the response of biomass allocation of Phragmites australis to petroleum pollution by a ¹³CO₂ pulse-labelling technique. Our data show that plant biomass signifi...

In recent years, an increasing number of Chemical Engineering Software (CES), which play an important role in improving efficiency in the petroleum industry, has been introduced to the                market. Generally, software is the product of intellectual creativity, but protection of the intellectual property residing in software is the subject of some controversy.  This paper explores the ...

2014
So-Min Cheong

The occurrence of oil spills is a global problem that requires a complex set of scientists, engineers, governments, corporations, and communities to address. The objective of this special feature is to understand the dynamic process of adaptation in the face of economic and ecological vulnerabilities as related to major oil spills, such as the Deepwater Horizon oil spill in the United States in...

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