EAGE E-Lecture: Seismic Anisotropy in Shaly Formations (Revisited by Patrick N.J Rasolofosaon)

 

Pubblicato il 21 gen 2016

https://www.youtube.com/watch?v=JjC-JZVy-zs&feature=youtu.be

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The past is the key to the future: what we have done and we are planning to do

I membri della University of Naples Federico II SEG Student Chapter, sono lieti di invitarvi al webinar “The past is the key to the future: what we have done and we are planning to do”.

Durante l’evento, il nuovo board della SEG Student Chapter illustrerà tutte le attività che sono state svolte nel biennio 2019/2020 ed i progetti relativi a questo nuovo anno. In particolare, una parte del webinar sarà dedicata alla presentazione dei risultati preliminari relativi alle indagini geofisiche condotte durante il corso “SEG Geophysics Field Camp in Southern Italy 2020”.

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Borsa di studio in memoria del dott. Andrea Restivo sul tema: “Nuovo modello tridimensionale di velocità dell’Italia Nord-Orientale da inversione tomografica di dati sismologici ed integrazione con dati geofisici”

La ricerca oggetto della borsa rientra nell’attività istituzionale del Centro di Ricerche Sismologiche di OGS, essendo finalizzata alla definizione di un modello tridimensionale delle velocità delle onde sismiche dell’Italia Nord-Orientale.
La domanda deve essere presentata entro il 19 febbraio 2021

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28th “Gustavo Sclocchi” Theses Award Announcement

for Philosophy Doctors and University Graduates
in disciplines related to the Energy Industry

To reward outstanding university graduates specializing in areas related to the Energy Industry, SPE Italian Section (Society of Petroleum Engineers), EAGE (European Association of Geoscientists & Engineers) and Assorisorse (Sustainable Natural Resources and Energy) announce the 28th “Gustavo Sclocchi” Theses Award.

University graduates from Italian universities and Italian nationals graduated abroad who have completed their studies in the period October 1st 2019 to December 31st 2020 are entitled to submit their published thesis for the award.

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Seismic anisotropy, that is to say the directional dependence of seismic velocity, is quite common in sedimentary formations and is often linked to the presence of shale. If not correctly taken into account it can strongly affect surface seismic data interpretation, seismic to well tie and azimuth versus offset analysis. From the analysis of two large databases of up to 800 ‘shaly’ samples in a broad sense, including shales but also mudshale, clayshale, siltstone, argillite, claystone, siltshale, mudstone, we demonstrate that seismic anisotropy in such formations is to a large extent determined by factors other than compaction processes, such as depositional environment, chemical composition of fluid, silt fraction, etc. Furthermore, the alignment of the individual clay platelets, main constituents of shales, can explain most of the anisotropy measurements of the databases. Assuming the elastic properties of the individual clay platelets, we propose simple plots for straightforwardly quantifying the Legendre Orientation Distribution Function coefficients and of the clay platelet alignment from the measurement of seismic anisotropy parameters. This video is part of EAGE Online Education Programme. The European Association of Geoscientists and Engineers (EAGE) is a global professional, non-profit association for geoscientists and engineers. EAGE strives to promote innovation and technical progress and aims to foster communication and cooperation between those working in, studying or interested in these fields. To learn more about EAGE Education visit www.LearningGeoscience.org