Etude Experimentale Et Modelisation Mecanique Des Effets Du Balayage A Leau Dans Une Craie Saturee Dhuile

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Etude expérimentale et modélisation mécanique des effets du balayage à l'eau dans une craie saturée d'huile

Author : Claudio Mata
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (494 download)

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Book Synopsis Etude expérimentale et modélisation mécanique des effets du balayage à l'eau dans une craie saturée d'huile by : Claudio Mata

Download or read book Etude expérimentale et modélisation mécanique des effets du balayage à l'eau dans une craie saturée d'huile written by Claudio Mata and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: La production des hydrocarbures est à l'origine, parfois, d'une compaction de la couche réservoir et d'un affaissement important de la surface du sol (subsidence). Le remède classique à ce type de phénomène est le maintien de la pression de fluide par injection d'eau. Toutefois, dans le cas des craies très poreuses (porosité > 30 %), cette technique s'est révélée peu efficace : dans les gisements situés en Mer du Nord (champ d'Ekofisk) le taux de subsidence, après injection, est resté élevé. Ce travail de thèse a pour but de faire progresser les connaissances des mécanismes de compaction des calcaires très purs et de proposer, à l'échelle micromécanique puis à celle de l'échantillon, une modélisation en accord avec les observations. Le lithotype utilisé pour les essais est une craie blanche du bassin parisien (Craie de Gerville)de caractéristiques proches de celle de la Mer du Nord, mais qui affleure en surface et n'a jamais été en contact avec les hydrocarbures. Des essais d'injection d'eau de type oedométrique - à déformation latérale nulle -, couplés aux résultats de la campagne de mesures physico-chimiques, nous ont permis de mettre en évidence deux contributions de nature différente à la cohésion entre les grains de craie : une contribution (constante) due à des ponts solides entre les grains et une contribution (variable en fonction du degré de saturation en eau) donnée par les efforts de nature capillaire. Un modèle de comportement élastoplastique explicitant comment ces deux contributions se couplent est proposé. Dans ce modèles l'écrouissage du matériau est contrôlé, comme d'habitude, par la déformation plastique, tandis que son adoucissement par le degré de saturation en eau.

Geomechanics in Reservoir Simulation

Author : Pascal Longuemare
Publisher : Editions TECHNIP
ISBN 13 : 9782710808336
Total Pages : 208 pages
Book Rating : 4.8/5 (83 download)

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Book Synopsis Geomechanics in Reservoir Simulation by : Pascal Longuemare

Download or read book Geomechanics in Reservoir Simulation written by Pascal Longuemare and published by Editions TECHNIP. This book was released on 2002 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Geomechanics Applied to the Petroleum Industry

Author : Jean-François Nauroy
Publisher : Editions TECHNIP
ISBN 13 : 271080932X
Total Pages : 221 pages
Book Rating : 4.7/5 (18 download)

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Book Synopsis Geomechanics Applied to the Petroleum Industry by : Jean-François Nauroy

Download or read book Geomechanics Applied to the Petroleum Industry written by Jean-François Nauroy and published by Editions TECHNIP. This book was released on 2011 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designing an efficient drilling program is a key step for the development of an oil and/or gas field. Variations in reservoir pressure, saturation and temperature, induced by reservoir production or CO2 injection, involve various coupled physical and chemical processes. Geomechanics, which consider all thermohydromechanical phenomena involved in rock behavior, play an important role in every operation involved in the exploitation of hydrocarbons, from drilling to production, and in CO2 geological storage operations as well. Pressure changes in the reservoir modify the in situ stresses and induce strains, not only within the reservoir itself, but also in the entire sedimentary column. In turn, these stress variations and associated strains modify the fluids flow in the reservoir and change the wellbore stability parameters. This book offers a large overview on applications of Geomechanics to petroleum industry. It presents the fundamentals of rock mechanics, describes the methods used to characterise rocks in the laboratory and the modelling of their mechanical behaviour ; it gives elements of numerical geomechanical modelling at the site scale. It also demonstrates the role of Geomechanics in the optimisation of drilling and production : it encompasses drillability, wellbore stability, sand production and hydraulic fracturing ; it provides the basic attainments to deal with the environmental aspects of heave or subsidence of the surface layers, CO2 sequestration and well abandonment ; and it shows how seismic monitoring and geomechanical modelling of reservoirs can help to optimise production or check cap rock integrity. This book will be of interest to all engineers involved in oil field development and petroleum engineering students, whether drillers or producers. It aims also at providing a large range of potential users with a simple approach of a broad field of knowledge.

Oil & Gas Science and Technology

Author :
Publisher :
ISBN 13 :
Total Pages : 368 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Oil & Gas Science and Technology by :

Download or read book Oil & Gas Science and Technology written by and published by . This book was released on 2004 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Comportement mécanique d'une craie très poreuse avec prise en compte de l'effet de l'eau

Author : Stéphane Homand
Publisher :
ISBN 13 :
Total Pages : 162 pages
Book Rating : 4.:/5 (492 download)

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Book Synopsis Comportement mécanique d'une craie très poreuse avec prise en compte de l'effet de l'eau by : Stéphane Homand

Download or read book Comportement mécanique d'une craie très poreuse avec prise en compte de l'effet de l'eau written by Stéphane Homand and published by . This book was released on 2000 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Des essais de compression isotrope, de compression triaxiale de revolution, de chargement proportionnel et d'extension laterale ont ete realises sur une craie blanche tres poreuse pour deux types de fluide (l'un mouillant et l'autre non-mouillant, respectivement de l'eau et du soltrol). Les resultats obtenus mettent en evidence les aspects fondamentaux du comportement mecanique de cette roche. Pour les deux types de fluides saturants, deux mecanismes de deformations plastiques sont mis en evidence : l'un correspond a un effondrement des pores, l'autre au cisaillement entre grains. L'evolution de la surface de charge et de la resistance a la rupture est etudiee. Un modele elastoplastique a deux surfaces de charge est developpe pour decrire le comportement de la craie. Le modele propose est utilise pour simuler les essais de la campagne experimentale. Le meme modele est utilise pour chacun des deux fluides saturants mais avec deux jeux de parametres differents. De facon generale, on obtient une bonne concordance entre les resultats experimentaux et ceux de la simulation. Quatorze essais d'injection, sous contraintes constantes sont realises pour etudier l'impact de l'injection d'eau dans un echantillon initialement sature au soltrol. En introduisant le modele developpe precedemment dans un programme de calcul par elements finis et en introduisant le concept de saut de surface de charge, le saut de deformation observe lors des essais d'injection est modelise. Afin d'appliquer le concept de modelisation a differents types de scenarios de production de champs petroliers, la resolution d'un probleme d'ecoulement biphasique en milieu poreux est etudiee. La simulation d'un probleme type de reservoir est proposee.

Water-rock Interactions, Ore Deposits, and Environmental Geochemistry

Author : Roland Hellmann
Publisher :
ISBN 13 :
Total Pages : 488 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Water-rock Interactions, Ore Deposits, and Environmental Geochemistry by : Roland Hellmann

Download or read book Water-rock Interactions, Ore Deposits, and Environmental Geochemistry written by Roland Hellmann and published by . This book was released on 2002 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Gas Transport in Porous Media

Author : Clifford K. Ho
Publisher : Springer Science & Business Media
ISBN 13 : 140203962X
Total Pages : 442 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Gas Transport in Porous Media by : Clifford K. Ho

Download or read book Gas Transport in Porous Media written by Clifford K. Ho and published by Springer Science & Business Media. This book was released on 2006-10-07 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: CLIFFORD K. HOAND STEPHEN W. WEBB Sandia National Laboratories, P. O. Box 5800, Albuquerque, NM 87185, USA Gas and vapor transport in porous media occur in a number of important applications includingdryingofindustrialandfoodproducts,oilandgasexploration,environm- tal remediation of contaminated sites, and carbon sequestration. Understanding the fundamental mechanisms and processes of gas and vapor transport in porous media allows models to be used to evaluate and optimize the performance and design of these systems. In this book, gas and vapor are distinguished by their available states at stan- ? dard temperature and pressure (20 C, 101 kPa). If the gas-phase constituent can also exist as a liquid phase at standard temperature and pressure (e. g. , water, ethanol, toluene, trichlorothylene), it is considered a vapor. If the gas-phase constituent is non-condensable at standard temperature and pressure (e. g. , oxygen, carbon di- ide, helium, hydrogen, propane), it is considered a gas. The distinction is important because different processes affect the transport and behavior of gases and vapors in porous media. For example, mechanisms specific to vapors include vapor-pressure lowering and enhanced vapor diffusion, which are caused by the presence of a g- phase constituent interacting with its liquid phase in an unsaturated porous media. In addition, the “heat-pipe” exploits isothermal latent heat exchange during evaporation and condensation to effectively transfer heat in designed and natural systems.

In-Vessel Melt Retention and Ex-Vessel Corium Cooling: IAEA Tecdoc No. 1906

Author : International Atomic Energy Agency
Publisher : International Atomic Energy Agency
ISBN 13 : 9789201063205
Total Pages : 72 pages
Book Rating : 4.0/5 (632 download)

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Book Synopsis In-Vessel Melt Retention and Ex-Vessel Corium Cooling: IAEA Tecdoc No. 1906 by : International Atomic Energy Agency

Download or read book In-Vessel Melt Retention and Ex-Vessel Corium Cooling: IAEA Tecdoc No. 1906 written by International Atomic Energy Agency and published by International Atomic Energy Agency. This book was released on 2020-08-06 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication results from a technical meeting on phenomenology and technologies relevant to in-vessel melt retention (IVMR) and ex-vessel corium cooling (EVCC). The purpose of the publication is to capture the state of knowledge, at the time of that meeting, related to phenomenology and technologies as well as the challenges and pending issues relevant to IVMR and EVCC for water cooled reactors by summarizing the information provided by the meeting participants in a form useful to practitioners in Member States.

Enhanced Oil Recovery

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (552 download)

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Book Synopsis Enhanced Oil Recovery by :

Download or read book Enhanced Oil Recovery written by and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Mechanics of Porous Continua

Author : Olivier Coussy
Publisher : Wiley
ISBN 13 : 9780471952671
Total Pages : 472 pages
Book Rating : 4.9/5 (526 download)

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Book Synopsis Mechanics of Porous Continua by : Olivier Coussy

Download or read book Mechanics of Porous Continua written by Olivier Coussy and published by Wiley. This book was released on 1995-12-05 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a unified and systematic continuum approach for engineers and applied physicists working on the modelling of porous media. Self-contained, it sets out—from a macroscopic point of view—the main concepts and results of deformable porous media subject to the flow of one or several fluids. The theory presented includes developments in the areas of thermodynamics, poroelastoplasticity, poroviscoplasticity, wave propagation and surfaces of discontinuity, boundary value problems and numerical methods, as well as chemico-mechanical couplings. It can be used for numerous diversified applications in geophysics, civil engineering, biomechanics, material science, etc.