Outcrop to Simulation - What Takes a Prospect to a Project - OTS

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Based in the spectacular setting of the southern Spanish Pyrenees, this course incorporates geology field and core store data collection with classroom based workshops and lectures to investigate the workflow from reservoir geology to 3D geocellular modeling and reservoir flow simulation.After an overview of the principles of static and dynamic reservoir modeling, the group is broken into teams, and a series of exposures of turbidite channel and sheet sandstone outcrops are then engaged, using each as a specific geocellular modeling problem exercise. The tutor team supporting the activities will deliver the exercise environment with a component of classroom teaching, as well as supervised modeling activities. The course is based on a prospect to project workflow that reinforces the principles, strengths and weaknesses of reservoir modeling, showing how reservoir data fit together.

Geoscientists, petrophysicists and reservoir engineers involved in developing descriptions and models of reservoirs. Team exercises will include a mixture of participants from different subsurface disciplines.

You will Learn:

Participants will learn how to:

  • Understand principles of static and dynamic reservoir modeling, geocellular modeling, rock and fluid properties and sensitivities of reservoir modeling and simulator software
  • Work in teams on core data in a core store, with well log data, to build simple static reservoir models
  • Work in teams to investigate outcrop examples of channelized and sheet sandstone deep-water turbidite outcrops, and also a structural scenario, and to collect data at outcrop (measured sections, line-drawn photomosaics, etc.)
  • Use observations to specify a 3D geocellular model of the reservoir appropriate for a particular practical problem
  • Compare with an actual model and with a flow simulator; use the simulator to understand key sensitivities
  • Understand models, input and output data reliability, simulations, geological understanding, reservoir behavior and variability, and the impact on value and economics, from a multi-disciplinary perspective

Course Content:

  • Introduction to the Prospect to Project workflow: overview of static and dynamic reservoir modelling, principles of geocellular modelling, fluid and rock properties; deep-water clastic systems, sedimentary processes, products and architectures; Field - overview of the Ainsa sub-basin, scales and volumes. Breakout into teams
  • Core store workshop: sections through confined, channelized and unconfined turbidite sections, and intervening, levee, slope and mass transport (debris flows, slump and slide) deposits; logging exercises and workshop on sedimentary facies and turbidite reservoir architecture; discussion and exercise - breakout discussions of sedimentary architecture and first modelling exercise based on core store data
  • Field investigation day of the Ainsa 1 Quarry channel section; Field - overview of the Ainsa Basin and channels of the Campodarbe group around Ainsa; group exercise on the Ainsa 1 Quarry channel, logging in pairs; workshop and run-through of lateral and vertical architecture variations
  • Reservoir modeling of turbidite channels: lectures on reservoir modeling, uncertainties, and geological input; Workshop - Putting together field data for field-scale reservoir modelling; constructing models; team and tutor presentations; workshop around the previously prepared geomodel and the simulator
  • Field investigation of sheet/lobe systems: overview of sheets and lobes, non-channelized architecture; Workshop: breakout discussions of sedimentary architecture and second and third modelling exercises; Field: investigation of field examples of turbidite sheets/lobe systems in the distal parts of the Ainsa Basin and the Campodarbe Group in the vicinity of the Boltana Anticline
  • Reservoir Modelling of Turbidite sheets/lobes: lectures and workshop: modelling channellised and sheet turbidite systems using field, core and subsurface data; 'tanks of sand'; team presentations, followed by integration of team results in the classroom using geocellular and simulator results

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