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E-150 - From Prospect to Development: an Integrated Approach

10 days GEO/PROSPECT
Level
Proficiency
Audience
  • Geologists, geophysicists, reservoir engineers.
Purpose
  • This course provides the knowledge and skills required to assess and move forward with field studies; from discovery through appraisal, and on to development - always looking for the best scenario.
Learning Objectives
  • Upon completion of the course, participants will be able to:
  • acquire state-of-the-art exploration methodology and workflow for prospect definition and evaluate related probability of success,
  • identify the link between exploration workflow (leading to the discovery well) and field development stages, while evaluating field potential (at each step of the process),
  • acquire practical knowledge of both appraisal and development workflows using a real case study.
Prerequisite
  • No prerequisites for this course.
Ways and means
  • Exercises and case studies on real examples.
  • Group workshop on development case histories.

Week 1: Basin analysis & prospect generationFrom play to lead 5 days
  • The participants carry out a mini-project on a real case study:
  • Short basin analysis using a seismic line and well-log data.
  • Potential “play” identification in the basin.
  • Prospect analysis and ranking.
Introduction to petroleum system & basin analysis
  • Basin potential assessment.
  • Regional context - Petroleum trilogy.
  • Play definition.
Risk analysis
  • Geological risk (reservoir, trap, HC conservation) Fluid content risk (Source rock, maturation, migration, timings).
  • Probability of success - Consequences for economics.
Basin assessment & prospect definition
  • Basin potential assessment
  • The petroleum trilogy.
  • Traps.
  • Migration versus entrapment timing
  • Seismic interpretation.
  • Well data interpretation.
  • Cross correlation & integration with seismic data.
  • Prospect definition
  • OHIP calculation.
  • Uncertainties.
Week 2: Oil field developmentFrom discovery to production start 5 days
Introduction to E&P workflow
  • General presentation of the different steps of an oil field development project.
  • Reminder of concepts, tools, methods, necessary data to work with and how to reduce inherent subsurface uncertainties.
  • Illustration through a case history (onshore field, light oil).
Discovery
  • Geological and tectonic context of the field.
  • Seismic interpretation issues.
  • Evaluation of a discovery well. Related uncertainties.
  • Proposals for location and program of the first appraisal well.
Appraisal phase
  • Evolution of subsurface uncertainties (structural maps, OHIP estimations, etc.) with new data from appraisal wells.
  • Updating of the issues after each appraisal well.
  • Definition of data acquisition programs for each well.
  • Date synthesis at the end of the appraisal phase and OHIP estimations.
Engineering studies
  • Estimations of reserves, production profiles through simplified methods and a full field simulation.
  • Estimations of CAPEX, OPEX, technical costs of different development scenarios.
  • Comparison of production forecasts with actual field production history.