Mineral & Organic Geochemistry

Synthesis

Day 1 :DESCRIBTION OF GEOLOGICAL PROCESSES, LEADING TO POROSITY PERMEABILITY ALTERATION
A special attention will be paid to conditions that will participate to protect sediments against porosity – permeability reduction. This will be followed by the presentation of the “tool box” petrography, chemistry, stable isotope and unstable isotopes analyses, fluid inclusion and processes dedicated to temperature determination (JCL).

Day 2 :
This session is organized to follow the geologic cycle of organic matter, from production in living organisms to burial in sediments and preservation in the rock record. Specific topics include lipid biochemistry and stereochemistry, factors controlling preservation and maturation in sediments, methanogenesis, diagnetic alterations of carbon skeletons, fossil fuel production and degradation, life in the deep biosphere, and biomarkers for ancient life

Day 3 :
PRESENTATION OF FEW EXAMPLES OF MINERAL DIAGENETIC SEQUENCES AND THEIR IMPACT ON PETROPHYSICAL CHARACTERISTICS OBSERVED ON KNOWN RESERVOIRS
Then an application of some tools will be shown in order to answered to an exploration problem, namely the prediction of porosity and permeability to be expected in deep buried reservoir
The reservoir water chemistry and its application is included that day, sampling and main analytical data will be presented in order to interpret results in terms of reservoir filling, and reservoir connectivity
An example of water chemistry study is proposed (JCL)

Day 4 :
APPLICATION OF ORGANIC GEOCHEMISTRY TO THE EXPLORATION, DEVELOPMENT AND PRODUCTION OF GAS, OIL, CONDENSATES, BITUMEN AND UNCONVENTIONAL PLAYS, USING STANDARD ANALYTICAL TOOLS
Pyrolysis, gross composition, fingerprinting, biomarkers and stable isotopes
In-reservoir thermal, chemical and bacterial alteration will be presented
Finally, the use of organic geochemistry for addressing environmental issues will be discussed

Day 5 :
An overview of the above presentation will be discussed with students, leaving room for questions and a more large discussion on the potential use of geochemistry in what concerns:
Reservoir monitoring
Environmental sciences (acid gas sequestration),
The Course will end with a short quiz of 3 questions and the delivery of a diploma
(DD & JCL)

Language

Français & Anglais

Audience type

Students with a fair knowledge in organic chemistry and geology who wish to understand keys for hydrocarbon production and good understanding of reservoir alterations related to burial, in order to rank project quality in exploration or production.

Planned duration

The course is planned for 5 days including half a day dedicated to a short quiz of 3 questions and the delivery of a diploma.

Support material

A simplified Powerpoint will be given to all participants at the end of the formation.

Prerequisite

Objectives

The aim of the course is to present the organic content and evolution in source rocks and fluids in reservoirs and, in parallel, reservoir characteristics (porosity and permeability) in relation to the burial history. The final goal being to predict fluid and reservoir behaviour before hydrocarbon trapping, and be able to help exploration and production with accurate information.

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