665.7

665 Huiles. Graisses. Cires. Adhésifs. Gommes. Résines
665.5 Huiles essentielles. Parfumerie. Cosmétiques
665.5/551 Huiles essentielles. Parfumerie. Cosmétiques
665.538
665.6 Technologie des huiles minérales. Technologie du pétrole et produits analogues
665.71
665.72 Gaz (y compris les gaz liquéfiés)

Ouvrages de la bibliothèque en indexation 665.7

Casing strength degradation due to torsion residual stress in casing drilling / Zhao Zengxin in Journal of natural gas science and engineering, Vol. 1 N° 4-5 (Novembre 2009) 

Public ISBD [article]  in Journal of natural gas science and engineering > Vol. 1 N° 4-5 (Novembre 2009) . - pp. 154-157 Titre : Casing strength degradation due to torsion residual stress in casing drilling Type de document : texte imprimé Auteurs : Zhao Zengxin, Auteur ; Gao Deli, Auteur Article en page(s) : pp. 154-157 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Casing  drilling  Torque  Torsion  status  Residual  stress  Collapse  strength Index. décimale : 665.7 Résumé : Casing string is rotated by torque from wellhead during casing drilling. The method to determine casing torsion status under various torques in casing drilling was discussed. There are three different torsion statuses under different torques, including elastic torsion, elastoplastic torsion and plastic torsion. The residual stress distribution was also discussed under different torques. The average residual stress under elastoplastic and plastic torsion status was calculated respectively; The modified casing collapse strength formula was derived considering the effect of residual stress. The analysis of calculation results indicates that the residual stress caused the collapse strength to decrease 0.033% under elastoplastic torsion, and effects of residual stress on casing strength can be neglected when there is no geometry shape changes in the casing. DEWEY : 665.7 ISSN : 1875-5100 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%2356453%2 [...] [article] Casing strength degradation due to torsion residual stress in casing drilling [texte imprimé] / Zhao Zengxin, Auteur ; Gao Deli, Auteur . - pp. 154-157. Génie Chimique Langues : Anglais (eng) in Journal of natural gas science and engineering > Vol. 1 N° 4-5 (Novembre 2009) . - pp. 154-157 Mots-clés : Casing  drilling  Torque  Torsion  status  Residual  stress  Collapse  strength Index. décimale : 665.7 Résumé : Casing string is rotated by torque from wellhead during casing drilling. The method to determine casing torsion status under various torques in casing drilling was discussed. There are three different torsion statuses under different torques, including elastic torsion, elastoplastic torsion and plastic torsion. The residual stress distribution was also discussed under different torques. The average residual stress under elastoplastic and plastic torsion status was calculated respectively; The modified casing collapse strength formula was derived considering the effect of residual stress. The analysis of calculation results indicates that the residual stress caused the collapse strength to decrease 0.033% under elastoplastic torsion, and effects of residual stress on casing strength can be neglected when there is no geometry shape changes in the casing. DEWEY : 665.7 ISSN : 1875-5100 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%2356453%2 [...]

Catalytic behaviors of bifunctional Fe-HZSM-5 catalyst in Fischer–Tropsch synthesis / Ali Nakhaei Pour in Journal of natural gas science and engineering, Vol. 1 N° 6 (Décembre 2009) 

Public ISBD [article]  in Journal of natural gas science and engineering > Vol. 1 N° 6 (Décembre 2009) . - pp. 183-189 Titre : Catalytic behaviors of bifunctional Fe-HZSM-5 catalyst in Fischer–Tropsch synthesis Type de document : texte imprimé Auteurs : Ali Nakhaei Pour, Auteur ; Masoud Zare, Auteur ; Seyed Mehdi Kamali Shahri, Auteur Article en page(s) : pp. 183-189 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Iron  catalyst  HZSM-5  zeolite  Bifunctional  catalyst  Fischer–Tropsch  synthesis Index. décimale : 665.7 Résumé : Fe-HZSM-5 bifunctional catalyst activity and products selectivity in Fischer–Tropsch synthesis (FTS) were investigated. HZSM-5 zeolite and iron catalyst were become near to each other step-by-step. In first step, zeolite just affected gaseous products after FTS reaction on iron catalyst. In other conditions, zeolite was incorporated in FTS process to be included in cracking and aromatization reactions. The results revealed that role of zeolite in overall reaction were increased from completely separated condition to physically mixed condition. Addition of binder in physically mixed condition was led to cover the active sites of bifunctional iron–zeolite catalyst and decrease activity of zeolite and iron catalyst. Also, decreasing amounts of Brønsted acid sites after FT reaction was related to zeolite incorporation in overall reaction that was decreased by closing the zeolite to the iron catalyst. HZSM-5 addition to FT catalyst suppressed the formation of oxygenates, which are converted to hydrocarbons on the zeolite acid sites. Furthermore, zeolite increased CO2 selectivity slightly because of oxygenate decomposition into CO2 as a side reaction that showed by co-feeding of light alcohol (with 14C) to FTS in previous works. DEWEY : 665.7 ISSN : 1875-5100 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%2356453%2 [...] [article] Catalytic behaviors of bifunctional Fe-HZSM-5 catalyst in Fischer–Tropsch synthesis [texte imprimé] / Ali Nakhaei Pour, Auteur ; Masoud Zare, Auteur ; Seyed Mehdi Kamali Shahri, Auteur . - pp. 183-189. Génie Chimique Langues : Anglais (eng) in Journal of natural gas science and engineering > Vol. 1 N° 6 (Décembre 2009) . - pp. 183-189 Mots-clés : Iron  catalyst  HZSM-5  zeolite  Bifunctional  catalyst  Fischer–Tropsch  synthesis Index. décimale : 665.7 Résumé : Fe-HZSM-5 bifunctional catalyst activity and products selectivity in Fischer–Tropsch synthesis (FTS) were investigated. HZSM-5 zeolite and iron catalyst were become near to each other step-by-step. In first step, zeolite just affected gaseous products after FTS reaction on iron catalyst. In other conditions, zeolite was incorporated in FTS process to be included in cracking and aromatization reactions. The results revealed that role of zeolite in overall reaction were increased from completely separated condition to physically mixed condition. Addition of binder in physically mixed condition was led to cover the active sites of bifunctional iron–zeolite catalyst and decrease activity of zeolite and iron catalyst. Also, decreasing amounts of Brønsted acid sites after FT reaction was related to zeolite incorporation in overall reaction that was decreased by closing the zeolite to the iron catalyst. HZSM-5 addition to FT catalyst suppressed the formation of oxygenates, which are converted to hydrocarbons on the zeolite acid sites. Furthermore, zeolite increased CO2 selectivity slightly because of oxygenate decomposition into CO2 as a side reaction that showed by co-feeding of light alcohol (with 14C) to FTS in previous works. DEWEY : 665.7 ISSN : 1875-5100 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%2356453%2 [...]

Decision matrix for liquid loading in gas wells for cost/benefit analyses of lifting options / Han-Young Park in Journal of natural gas science and engineering, Vol. 1 N° 3 (Septembre 2009) 

Public ISBD [article]  in Journal of natural gas science and engineering > Vol. 1 N° 3 (Septembre 2009) . - pp. 72-83 Titre : Decision matrix for liquid loading in gas wells for cost/benefit analyses of lifting options Type de document : texte imprimé Auteurs : Han-Young Park, Auteur ; Gioia Falcone, Auteur ; Catalin Teodoriu, Auteur Article en page(s) : pp. 72-83 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Liquid  loading  Artificial  lift Index. décimale : 665.7 Résumé : Liquid loading in gas wells is a multiphase flow phenomenon where the liquid content of the well creates back pressure that restricts, and in some cases even stops, the flow of gas from the reservoir. It is estimated that 90% of the producing gas wells in the U.S. are operating in liquid loading regime. Field-proven solutions already exist to reduce the loss of gas production when liquid loading begins to occur. However, whether or not the chosen remedy is technically feasible and cost effective will depend on the field's location, export route capacity and the operator's experience. Although there are literature reviews available that describe the possible solutions to liquid loading problems in gas wells, no tool currently exists which is capable of helping an operator select the best remedial option for a specific field case. The selection of the best remedial technique and the timeframe within which the remedial action is undertaken are critical to a project's profitability. This paper describes a newly developed decision matrix to screen the possible remedial options available to the operator. The matrix not only provides a critical evaluation of technical solutions to the problem of liquid loading in gas wells vis-à-vis the existing technical and economic constraints, but also serves as a quick screening tool for the selection of production optimization strategies. In its current state of development, the tool consists of an assessment algorithm used in conjunction with a decision tree. Being a data mining technique, the decision tree allows rapid subdivision of large initial data sets into successively smaller sets by a series of decision rules, which are based on information available in the public domain. The effectiveness of the matrix is now ready to be tested against real field data sets. DEWEY : 665.7 ISSN : 1875-5100 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%2356453%2 [...] [article] Decision matrix for liquid loading in gas wells for cost/benefit analyses of lifting options [texte imprimé] / Han-Young Park, Auteur ; Gioia Falcone, Auteur ; Catalin Teodoriu, Auteur . - pp. 72-83. Génie Chimique Langues : Anglais (eng) in Journal of natural gas science and engineering > Vol. 1 N° 3 (Septembre 2009) . - pp. 72-83 Mots-clés : Liquid  loading  Artificial  lift Index. décimale : 665.7 Résumé : Liquid loading in gas wells is a multiphase flow phenomenon where the liquid content of the well creates back pressure that restricts, and in some cases even stops, the flow of gas from the reservoir. It is estimated that 90% of the producing gas wells in the U.S. are operating in liquid loading regime. Field-proven solutions already exist to reduce the loss of gas production when liquid loading begins to occur. However, whether or not the chosen remedy is technically feasible and cost effective will depend on the field's location, export route capacity and the operator's experience. Although there are literature reviews available that describe the possible solutions to liquid loading problems in gas wells, no tool currently exists which is capable of helping an operator select the best remedial option for a specific field case. The selection of the best remedial technique and the timeframe within which the remedial action is undertaken are critical to a project's profitability. This paper describes a newly developed decision matrix to screen the possible remedial options available to the operator. The matrix not only provides a critical evaluation of technical solutions to the problem of liquid loading in gas wells vis-à-vis the existing technical and economic constraints, but also serves as a quick screening tool for the selection of production optimization strategies. In its current state of development, the tool consists of an assessment algorithm used in conjunction with a decision tree. Being a data mining technique, the decision tree allows rapid subdivision of large initial data sets into successively smaller sets by a series of decision rules, which are based on information available in the public domain. The effectiveness of the matrix is now ready to be tested against real field data sets. DEWEY : 665.7 ISSN : 1875-5100 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%2356453%2 [...]

Degradation of gas turbine performance in natural gas service / Rainer Kurz in Journal of natural gas science and engineering, Vol. 1 N° 3 (Septembre 2009) 

Public ISBD [article]  in Journal of natural gas science and engineering > Vol. 1 N° 3 (Septembre 2009) . - pp. 95-102 Titre : Degradation of gas turbine performance in natural gas service Type de document : texte imprimé Auteurs : Rainer Kurz, Auteur ; Klaus Brun, Auteur Article en page(s) : pp. 95-102 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Degradation  Gas  turbine  Natural  gas Index. décimale : 665.7 Résumé : The paper covers in detail degradation mechanisms and the impact of component degradation on overall gas turbine performance, in particular for two shaft engines as they are used as drivers for compressors in the natural gas service. The impact of component interaction plays a crucial role in the understanding of degradation effects. This is key in understanding and using other studies on this subject that typically only address individual components. The apparent change in efficiency of a component is both due to its deterioration as well as a change in its operating point as a result of component interactions. The paper also provides a discussion about the causes for degraded gas turbine components, and their impact on performance characteristics of the gas turbine. The method used is to subject an engine performance model (‘cycle deck’) to degradation of individual components, and to study the effect on operating parameters. DEWEY : 665.7 ISSN : 1875-5100 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%2356453%2 [...] [article] Degradation of gas turbine performance in natural gas service [texte imprimé] / Rainer Kurz, Auteur ; Klaus Brun, Auteur . - pp. 95-102. Génie Chimique Langues : Anglais (eng) in Journal of natural gas science and engineering > Vol. 1 N° 3 (Septembre 2009) . - pp. 95-102 Mots-clés : Degradation  Gas  turbine  Natural  gas Index. décimale : 665.7 Résumé : The paper covers in detail degradation mechanisms and the impact of component degradation on overall gas turbine performance, in particular for two shaft engines as they are used as drivers for compressors in the natural gas service. The impact of component interaction plays a crucial role in the understanding of degradation effects. This is key in understanding and using other studies on this subject that typically only address individual components. The apparent change in efficiency of a component is both due to its deterioration as well as a change in its operating point as a result of component interactions. The paper also provides a discussion about the causes for degraded gas turbine components, and their impact on performance characteristics of the gas turbine. The method used is to subject an engine performance model (‘cycle deck’) to degradation of individual components, and to study the effect on operating parameters. DEWEY : 665.7 ISSN : 1875-5100 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%2356453%2 [...]

Development of unsteady-state Weymouth equations for gas volumetric flow rate in horizontal and inclined pipes / T. A. Adeosun in Journal of natural gas science and engineering, Vol. 1 N° 4-5 (Novembre 2009) 

Public ISBD [article]  in Journal of natural gas science and engineering > Vol. 1 N° 4-5 (Novembre 2009) . - pp. 113-117 Titre : Development of unsteady-state Weymouth equations for gas volumetric flow rate in horizontal and inclined pipes Type de document : texte imprimé Auteurs : T. A. Adeosun, Auteur ; O.A. Olatunde, Auteur ; J. O. Aderohunmu, Auteur Article en page(s) : pp. 113-117 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Flow  rate  Unsteady-State  Weymouth Index. décimale : 665.7 Résumé : Calculations of Unsteady-State Gas volumetric flow rate in pipes occur more frequently in the design and operational analysis of natural gas systems. Most of the existing gas pipelines design procedures on Weymouth Equations are based on steady-state flow equations. Hence there is the need to develop equations capable of calculating the unsteady-state gas volumetric flow rate in horizontal and inclined pipes. This paper presents unsteady-state Weymouth Equations for flow of natural gas in long pipelines without neglecting any term in the momentum equation. The analytical solutions of the resulting differential equations are obtained in the form of Unsteady-State Weymouth equations. The equations give functional relationship between flow rate, inlet pressure and outlet pressure at any given time. The effect of pressure drop per segment on gas flow rate is presented. The new Weymouth Equations yield results close to steady-state flow and is able to account for the initial transience in gas volumetric flow rate. The equations considerably enhance gas pipeline design in terms of both ease of usage and accuracy. A simple computer program in FORTRAN is developed to handle these calculations. DEWEY : 665.7 ISSN : 1875-5100 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%2356453%2 [...] [article] Development of unsteady-state Weymouth equations for gas volumetric flow rate in horizontal and inclined pipes [texte imprimé] / T. A. Adeosun, Auteur ; O.A. Olatunde, Auteur ; J. O. Aderohunmu, Auteur . - pp. 113-117. Génie Chimique Langues : Anglais (eng) in Journal of natural gas science and engineering > Vol. 1 N° 4-5 (Novembre 2009) . - pp. 113-117 Mots-clés : Flow  rate  Unsteady-State  Weymouth Index. décimale : 665.7 Résumé : Calculations of Unsteady-State Gas volumetric flow rate in pipes occur more frequently in the design and operational analysis of natural gas systems. Most of the existing gas pipelines design procedures on Weymouth Equations are based on steady-state flow equations. Hence there is the need to develop equations capable of calculating the unsteady-state gas volumetric flow rate in horizontal and inclined pipes. This paper presents unsteady-state Weymouth Equations for flow of natural gas in long pipelines without neglecting any term in the momentum equation. The analytical solutions of the resulting differential equations are obtained in the form of Unsteady-State Weymouth equations. The equations give functional relationship between flow rate, inlet pressure and outlet pressure at any given time. The effect of pressure drop per segment on gas flow rate is presented. The new Weymouth Equations yield results close to steady-state flow and is able to account for the initial transience in gas volumetric flow rate. The equations considerably enhance gas pipeline design in terms of both ease of usage and accuracy. A simple computer program in FORTRAN is developed to handle these calculations. DEWEY : 665.7 ISSN : 1875-5100 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%2356453%2 [...]

Distributed fibre optic sensors for pipeline protection / Femi Tanimola in Journal of natural gas science and engineering, Vol. 1 N° 4-5 (Novembre 2009) 

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Evaluating carbon emissions reduction by use of natural gas as engine fuel / Paola Helena Barros Zárante in Journal of natural gas science and engineering, Vol. 1 N° 6 (Décembre 2009) 

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Evaluation of methane emissions from polyethylene gas distribution systems at medium pressure / Jorge Barroso in Journal of natural gas science and engineering, Vol. 1 N° 4-5 (Novembre 2009) 

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Experimental investigation of the velocity-dependent relative permeability and sweep efficiency of supercritical CO2 injection into gas condensate reservoirs / Abdullah Al Abri in Journal of natural gas science and engineering, Vol. 1 N° 4-5 (Novembre 2009) 

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Gas-to-Liquid technology / I. Onwukwe Stanley in Journal of natural gas science and engineering, Vol. 1 N° 6 (Décembre 2009) 

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Hydrogen production from methane reforming / C. N. Ávila-Neto in Journal of natural gas science and engineering, Vol. 1 N° 6 (Décembre 2009) 

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Intelligent design and selection of natural gas two-phase separators / Luis F. Ayala H. in Journal of natural gas science and engineering, Vol. 1 N° 3 (Septembre 2009) 

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Mathematical model for calculating the dispersion coefficient of super critical CO2 from the results of laboratory experiments on enhanced gas recovery / Hiwa Sidiq in Journal of natural gas science and engineering, Vol. 1 N° 6 (Décembre 2009) 

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Modeling and simulation of sour gas membrane-absorption system: Influence of operational parameters on species removal / S. Mohebi in Journal of natural gas science and engineering, Vol. 1 N° 6 (Décembre 2009) 

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A practical approach for optimization of infill well placement in tight gas reservoirs / Yueming Cheng in Journal of natural gas science and engineering, Vol. 1 N° 6 (Décembre 2009) 

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