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Giri J.P.N.,ONGC
Society of Petroleum Engineers - SPE Middle East Health, Safety, Security, and Environment Conf. and Exhibition 2012, MEHSSE - Sustaining World Energy Through an Integrated HSSE and Business Approach | Year: 2012

Debate on Sustainable Environmental Performances and economic Issues derives emergence of Corporate Social Responsibility and Bio-diversity Initiatives involving stakeholders to sustain community development, preserves ecosystems, tribal cultures and biodiversity. Issues involved in extraction of hydrocarbons are many; however the paper aggressively focuses to environmental performances in terms of recycling and waste management; capacity building reducing GHG emissions, CDM diversifying energy portfolios, demographic spectra empowering targeted communities, resulting in project sustainability in associative partnership with industries' stakeholders. In emerging New World Energy Order, Indian Petroleum Industry aligns on environmental cooperation by creating ownership structures & establishing environment community enterprises at large in its project management indices. Identifying critical ecological, environmental and climatic issues at Carbon Energy Business, the paper emphatically explores ONGCs achievements over a decade on reductions in GHG emissions and bio-diversity imitative to preserve tribal cultures across its field operations. ONGC has evolved a New Paradigm of Corporate Governance on disclosures to its stakeholders, investment community and public on major aspects of financial policy, practices, environmental performances, risk management and capacity building. Unifying theme of new paradigm is to predict future sustainable carbon energy production peak on economic, social and environmental dimensions during Carbon Energy Lead Time in mid - century term. The paper concludes in deriving socio economic model, building long term relationships on stakeholders concerns in environmental framework for industries operations and community development for sustainable energy production, preserved ecosystems and economic growth. It further evolves Roadmaps, on today's environmental and community partnerships for preventing pollution, conserving resources, measuring progress, promoting product-stewardship, maintaining crisis-readiness, addressing community-concerns, working with governmental / nongovernmental agencies, and reporting results to develop responsible rules and standards to protect society and ecosystems, resulting in improving compatibility and operability of industry and its services at large. Copyright 2012, Society of Petroleum Engineers. Source

Sandstones associated with Oligocene Barail coal-shale sequences form good reservoir facies and are oil producers in many wells of India's Geleki Field and adjoining areas. Mapping these sands using seismic attributes may lead to data that are difficult to interpret because sand-coal and shale-coal interfaces generate similar attributes. In such cases, seismic attributes may show the depositional geometry but with ambiguous lithology. The lithologic ambiguity may further be worsened by carbonaceous shales, which often occur in coal-shale sequences, and that shales may appear similar to sandstones in some log (e.g., gamma ray, resistivity, etc.) and interface properties. Integration of logs with seismic data improves lithologic discrimination and reservoir characterization. The log motifs (patterns) reinforce the interpretation of depositional environments and processes and log properties (magnitude) reduce the ambiguity in lithologic prediction. Seismic attributes and log properties can be integrated by finding interrelationships between these two types of data at control (wells) points. The interrelationships are used for seismic-guided prediction of log properties beyond the wells and generation of property volumes. The predicted volumes are interpreted in terms of lithology and other reservoir parameters (porosity, saturation, etc.). © 2012 Society of Exploration Geophysicists. Source

Although reinforced concrete structures are designed as per codes / standards but enough care is not always taken during construction process. As a result, the structures start showing signs of distress, some times less than 10 years of service life, requiring early repair and rehabilitation work. In this paper, a case study of 3 no. (G+8) multi-storeyed buildings badly damaged due to corrosion and Bhuj (India) earthquake of 2001, rehabilitated in 2003 has been presented. Repair strategy involved removal of delaminated carbonated concrete cover , application of rust remover, anti-corrosion coating, polymer bond coat, polymer modified mortar , injection of low viscosity epoxy grout to beam-column junctions and cracks, repair of masonry cracks with polymer modified mortar & grouting with SBR modified cement grout and jacketing of columns at the ground floor. Extensive material testing was carried out and specifications for acrylic and SBR polymer modified mortar were selected for durable repairs. Strict quality control and assurance both in material and workmanship was adopted. After nine years of successful rehabilitation and functioning, some signs of distress in the form of cracks and spalls due to rebar corrosion have been noted at some locations, requiring rehabilitation again. Some recommendations /conclusions have been given for durable concrete constructions and rehabilitation work. © 2012 Published by Elsevier Ltd. Source

Bansal S.,YMCA University of Science and Technology | Kumar N.,ONGC
Journal of Biomedical Nanotechnology | Year: 2011

The electronic absorption spectra of C 60 and C 70 molecules have been reported in various solvents viz., polar, aliphatic and aromatic. In addition the electronic absorption spectra of C 60 and C 70 also recorded in different matrices viz., sol-gel, polymer and thin film. The solvent effect has been observed in polar, aliphatic and aromatic solvents. The aromatic solvent shows larger red shift as compared to other solvents. The solution form electronic absorption spectra C 60 and C 70 show the conjugation effect and compared with the absorption spectra reported in different matrices like sol- gel, polymer and thin film. In the case of sol-gel, polymer and thin film matrices of C 60 and C 70, it is found that the broader absorption bands with less intensity suffer from intermolecular interaction. Copyright © 2011 American Scientific Publishers All rights reserved. Source

News Article
Site: http://news.yahoo.com/energy/

The PDVSA logo is seen at a gas station in Caracas, December 21, 2015. REUTERS/Marco Bello More (Reuters) - Venezuela's state-run company PDVSA has requested its partners in at least a half dozen joint ventures pay for naphtha imported to produce exportable crudes amid a punishing oil price crash, according to sources and a company letter seen by Reuters. With at least some partners likely to balk at the request, PDVSA [PDVSA.UL] could face even bigger obstacles to import diluents and, in consequence, to keep barrels flowing from the Orinoco belt, its main producing region. PDVSA is responsible for providing the naphtha, or light crude, needed to dilute the extra heavy oil produced at the Orinoco Belt, according to contracts signed with foreign partners including Chevron , Repsol and ONGC. But the company has now asked some of its foreign partners to cover the payments as of this year. "The joint venture you currently represent will have to purchase the naphtha volumes needed to meet your production plan for 2016," reads a letter sent to companies working in the Orinoco. Caracas-based PDVSA did not immediately respond to a request for comment. As imported diluents are increasingly crucial to transport and market Venezuelan crudes amid declines in PDVSA's own light and medium oil output and refinery frequent stoppages, some companies might agree to the deal. A barrel of Venezuelan Merey or DCO heavy crude needs around 30 percent to 50 percent of diluent to be exportable. A joint venture that produces 25,000 barrels per day, for example, would spend around $9 million a month on naphtha purchases at current spot prices in the U.S. Gulf Coast. Two sources at foreign firms, who according to Venezuelan law can only have a maximum stake of 40 percent in joint ventures, said they will shoot down the proposal. "Our contract is specific when saying PDVSA is in charge of supplying the diluents. We cannot pay for the imports," one of the sources said. Since mid-2015, PDVSA has bought around 11.5 million barrels of African light and medium crudes, plus some 2 million barrels per month of heavy naphtha, according to vessel tracking data and PDVSA's internal exports and imports reports. Oil prices, which on Friday plunged to close below $30 a barrel for the first time in 12 years, have energy companies across the world reeling. In neighboring Brazil, Petroleo Brasileiro SA , the state-controlled oil producer also known as Petrobras, last week slashed its investment plan for the third time in just over six months as it tries to preserve cash to pay its debt. The oil crash is slamming OPEC nation Venezuela, which depends on oil for 96 percent of its income, amid a profound recession and PDVSA's major debt obligations. PDVSA accumulated pending invoices on its imports, including naphtha, in November-December. That led to a backlog of vessels around its ports with suppliers demanding to be paid before they discharged. Trading sources say some providers are now requesting PDVSA prepay cargoes and others are using intermediaries to secure payments, likely increasing PDVSA's financial burden. To avoid pricier spot payments, PDVSA said in an interview last year it is seeking to secure long-term supply contracts. PDVSA has been trying to cut costs, but its drive has been stymied by the Venezuelan export barrel's price slipping to around $24, the lowest since late 2003. The company is mulling refinancing options, according to its president, Eulogio Del Pino, a low-profile Stanford-educated engineer seen as a reformer. PDVSA would likely make cash calls to ask partners to pay for the naphtha. "It would be inconvenient for everybody if purchases of diluents get halted, but the way to solve this is not by asking for more money to the partners," said another executive who asked not to be named.

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