1. NExT
  2. Petrotechnical
  3. Integrated Play-based Exploration Principles and Processes: Play Identification, Evaluation, and Assessment
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Integrated Play-based Exploration Principles and Processes: Play Identification, Evaluation, and Assessment

Level: Foundation | Type: Classroom | Discipline: Exploration Play and Prospect Definition

This 5-day course is about:
o Understanding plays and Play-based Exploration: Why Play-based Exploration is best practice
exploration? How is it used in the Exploration process?
o How to identify new plays using global concepts, understanding of basin types, petroleum system
principles, basic geological principles and “geo-logic”
? What makes a basin good for exploration?
? We know a lot…even when “we have no information”
o How plays are evaluated by mapping geological nature over their extent
? how the evaluation of conventional and unconventional plays differs
? Mapping play fairways
o How plays are “risked”: what is Play Chance vs. local risk. Common Risk Segment mapping
o Calculating Yet-to-find resources for conventional and unconventional plays
o How plays are used to decide where to explore next
o How the play’s evaluation and assessment is the fundamental for evaluating the assessing the
prospects in a play
o How to make a direct transition from the Play Assessment down to the prospect level thus
assuring prospect assessments that are geologically-based, objective, consistent and documented
and linked directly back to all the work done on the play.
This course is heavy on domain knowledge. This knowledge is mixed with lots of hands-on exercises that use the Petrel, PetroMod, and the Petrel Exploration Geology tools to do probabilistic Yet-to-find volumetrics and risking in GeoX.
The “traditional” method for doing Play Resource Assessment and creating the Common Risk Segment
maps that are the foundation of this process was the laborious and lengthy “light table method.” Results
of the petroleum system model were often not included.
In the digital world, the participants will learn to use Petrel (where the play fairway maps were created),
petroleum system modeling results (automatically imported from PetroMod into Petrel) to digitally
SLB-Private
create Common Risk Segment maps that will be used with GeoX to do the probabilistic Yet-to-find
assessments.

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1) Integrated Play-based Exploration: What is Play-based Exploration and why is it the best practice
for Exploration?
2) Fundamentals of Play-based Exploration: Global Themes, Basins, Play, Petroleum Systems, play
vs. petroleum system, play fairway maps, common risk segment maps, leads vs. prospects, play
resource assessment, play chance and local segment risk, essential “rules-of-thumb”
• What makes one basin work better than another? “The Checklist”
3) Play Fairway mapping
• Making regional rock quality maps: Gross thickness, net/gross, porosity, facies
• Using petroleum system modeling maps showing transformation ratio, vitrinite
reflectance, HC generation mass, and migration fairway maps for as play fairway maps
• Creating regional seal capacity and regional porosity maps calibrated to available wells
• Mapping structural closure (Trap) maps
4) Common risk segment chance mapping for the key risk elements: Trap, Reservoir, Charge, and
Seal and combining these to identify leads and prospects with highest chance of success
5) Number of Postulated Features
• The remaining unexplored leads and prospects: Estimates from analogue plays, calibration
areas, and or structure count. Including known prospects
• Pitfalls
6) Future field size distribution
• Frontier plays
• Drilled plays – using the size of past successes to predict the size of future discoveries
o The past IS NOT the key to the future
7) Calculating Yet-to-find (YTF) play resources
• How is a yet-to-find estimate calculated by a Monte Carlo simulation
• Setting up and running a play Yet-to-find calculation
o Inputting distributions
o Interpreting output
• Combining plays’ Yet-to-find
o Correlations and risk dependencies
8) Unconventional Resource Assessment – How to do probabilistic volumetrics on unconventional plays
• Main factors in determining the productive areas
• Making Common Risk Segment maps to identify the “sweet spots”
• Determining Well density/spacing

?

Exploration geoscientists, team leads, and managers. Very valuable if attended as a team

Basic Petrel and prospect assessment skills are useful, but not required. Required software skills will be taught as part of the course, so no software prerequisites

Currently there are no scheduled classes for this course.

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