Cymbopogon olivieri essential oil from aerial parts was analyzed by gas chromotography and gas chromatography-mass spectrometry and led to the identification of 38 compounds. Piperitone (72.8%), 4-carene (11.8%) and β-himachalene (7.6%) were found as the major components of the oil. The antimicrobial activity was achieved using disc-diffusion and microbroth dilution assays and microbicidal kine...

The world’s production of conventional hydrocarbons will soon decline. Hydrocarbon shortages are inevitable unless radical changes occur in demand, or in the supply of non-conventional hydrocarbons. The details are as follows: Global conventional oil supply is currently at political risk. This is because the sum of conventional oil production from all countries in the world, except the five mai...

Natural gas comprises about a quarter of the United States' energy use. It is more environmentally friendly than oil and coal due to lower carbon dioxide (CO2) emissions per unit, less costly per unit of energy and more readily available domestically in abundant supply. However, due to a number of barriers in the political, infrastructural, pricing and other arenas, the use of natural gas as a ...

This article is study of Azerbaijan oil and gas industry. It illustrates the business climate, the impact of this sector on Azerbaijan’s economy including role of SOFAZ and highlights recent developments in the energy production and the main concepts of Azeri PSAs. Meanwhile, the article establishes the government policy by indentifying several factors that influenced to attract foreign investm...

In this environment, oil and gas companies are seeking opportunities to improve processes and technologies to remain competitive. Upstream oil and gas companies need integrated views of their production processes all the way from the reservoir to the pipeline. They must optimize their processes and perform predictive analysis of production problems to minimize losses. In downstream operations, ...

Platforming, the sharing of parts, processes, knowledge, and technologies, across products and projects has proven to be an effective way for firms to reduce their costs. While platforming is now common in many consumer and industrial products, the use of platforms is a relatively new practice in the design of civil and industrial projects such as buildings, power grids, and oil and gas facilit...

The exploration of offshore gas/oil has been moving to deepwater fields as big reservoirs have been found and technologies have improved. Presently, the most active areas in deepwater gas/oil field development are Africa and the GOM (Gulf of Mexico) in North America. There are many technological challenges in developing deepwater gas/oil fields such as: flow assurance, subsea systems, riser sys...

Maintenance strategies for subsea oil and gas production installations entail the use of specialized equipment and vessels to carry out subsea interventions. The costs for carrying out preventive maintenance are significantly lower compared to the costs of unpredicted failures where in some cases it is necessary to reduce or stop the oil production. Based on a literature review and inputs from ...

This research presents a model for optimal allocation of Iranian oil and gas resources in sanction condition based on stochastic linear multi-objective programming. The general policies of the resistive economy include expanding exports of gas, electricity, petrochemical and petroleum products, expanding the strategic oil and gas reserves, increasing added value through completing the petroleum...

Outline and summary • Oil company reserves disclosures are one of the most important pieces of information that the financial sector requires in order to analyse, compare and contrast the past and prospective operational performance of oil and gas exploration and production firms. • Recent reserves re-categorizations by several companies have only served to highlight the inadequacy of the publi...