Stage de diagraphie

Stage de diagraphie
Diplôme d'ingénieur de l'École et observatoire des sciences de la Terre (EOST)Parcours Diplôme d'ingénieur de l'EOST

ComposanteÉcole et observatoire des sciences de la Terre (EOST)

Description

Le stage se déroule dans les Vosges sur 2 jours au mois de mai. Les étudiants travaillent sur des forages de 40m et 80m de profondeur sur lesquels sont proposés 4 ateliers :

  • A1 : Mesures thermiques et de conductivité électrique
  • A2 : Radar en forage
  • A3 : Profils sismiques verticaux
  • A4 : Résistivité électrique et log sonique

Les étudiants passent ensuite 2 jours en salle informatique pour traiter leurs données, interpréter les résultats et écrire un rapport de stage.

The course takes place in the Vosges over 2 days in May. The students work on 40m and 80m deep boreholes on which 4 workshops are proposed:
 

  • A1: Thermal and electrical conductivity measurements
  • A2: Radar in drilling
  • A3: Vertical seismic profiles
  • A4: Electrical resistivity and sonic log


The students then spend 2 days in a computer room to process their data, interpret the results and write a report.

A la fin de ce cours, vous serez capable de :

Comprendre l’intérêt et la complémentarité des méthodes de diagraphie
Mettre en place et réaliser des mesures de diagraphie sur le terrain
Analyser des mesures de diagraphie avec des logiciels adaptés
Interpréter des résultats de mesures de diagraphie pour déterminer les propriétés d’un milieu fracturé.
Écrire un rapport

Understand the objectives and complementarity of logging geophysical methods
Set up and perform logging geophysical measurements in the field
Analyze logging geophysical measurements with appropriate software
Interpret logging geophysical results to determine the properties of a fractured media.
 

Compétences visées

L’objectif du stage est de se familiariser avec diverses techniques de diagraphies et observer comment des mesures complémentaires permettent de caractériser un aquifère en milieu fracturé.

The objective of the course is to become familiar with various logging techniques and to observe how complementary measurements can be used to characterize an aquifer in a fractured environment.
 

School regulations

The curriculum includes three years of study: admissions, the organisation of studies, assessments, placements and vivas, graduation and international exchanges are all explained in the current school rules (pdf).

First and second year courses

First and second year courses

  • General modules: mechanics, geology, mathematics, IT, digital analysis, signal processing, inverse methods.
  • Geophysical methods: physics of the Earth, seismology, seismic modelling and imaging, geodesy, gravimetry, potential methods, geomagnetism, electromagnetism, rock physics and fracture, hydrology.
  • Practical work: geophysical measurements in the field (photo) and in the laboratory, geology field placements in the Alps.
  • Languages and economic and social sciences: English, modern language 2, economics, industrial property, management, sustainable development, ethics, quality, company health and safety
  • IT and research projects, shared with the first year of the master’s degree
  • Summer placements at a laboratory or company, with numerous opportunities abroad (international placement contact: Mike Heap)

Third year course

Students have a choice of 3 specialisations in the third year:

  • Geophysics applied to the exploration and production of raw materials: seismic and hydrodynamic characterisation of reservoirs, seismic processing and interpretation, potential methods.
  • Geophysics applied to geotechnics: geotechnics and the resistance of materials applied in civil engineering, geomechanics, hydrogeophysics, electromagnetic methods, earthquake.
  • Hydrogeology, hydrogeochemistry, hydrogeophysics (HydroG3).

Additional teaching:

  • Languages and economic and social sciences: English, energy economy, company strategy and structure.
  • Geophysics field camp in Alsace (photo).  Here are images of a normal fault in the Rhine Graben taken by students.
  • 6-month industry placement culminating in the writing of a dissertation and a viva before a jury in order to obtain the engineering degree. The placements are carried out all over the world.