• Class and Course

    Exploration Mapping: Making Maps with Little or No Data

    “A good geologist can always make a map.” This 4-days course is about learning the techniques that explorationists use to create maps to evaluate and assess plays, leads, and prospects even when there is little or no data available.  

    Often a geologist has to make maps over an area where there is not a lot of data. Maybe a well or two and some vintage seismic lines. A geologist must still make an evaluation in the area and make a recommendation on the decision at hand. “There is not enough data” is not an acceptable answer. 

    This course teaches how to combine the available data with geological knowledge and “geo-logic” to create maps of play potential, i.e. play fairway maps, for trap, reservoir, charge, and seal. It teaches how to combine these maps to show the best areas within the play (Common Risk Segment maps) that are then used in the Play Resource Assessment. It then shows how to refine the play fairway maps to identify the leads and prospects within the play and their Chance of Success.

    This course is heavy in domain knowledge that relates to plays, prospecting, petroleum systems, and rock quality mapping. This knowledge is combined with the techniques and savvy used by expert geoscientists. The course has lots of hands-on exercises that use this knowledge and these techniques to make Play Fairway and Chance of Success maps with Petrel, particularly Petrel Exploration Geology.

    At the end of the four days, the participants will be able to make these maps AND have the knowledge, skills, and savvy to adapt then to other situations.


    Day 1 :


    - Best Practice Exploration: Basin-to-Play and Play-to-Prospect

    - The language of Prospecting: Defining the basic terminology – Basin, play, petroleum system, lead & prospect

    - How to use geologic principles, knowledge and geo-logic to stretch a little data and make maps

    - Play Resource Assessment and Lead and Prospect Assessment: Putting numbers to the geology

    - Chance Mapping: Making Common Risk segment maps for plays and continuous chance mapping for leads and prospects

    Play Fairway Mapping

    - Structural Mapping with little or no data. Using remote sensing to define areas with hydrocarbon potential. Making structural maps from sparse data (Demo)

    - Trap Play Fairway Mapping: Mapping structural and stratigraphic trap fairways. Creating chance maps with Petrel as direct input of chance into Common Risk Segment maps (Exercise).

    - Fault and Fracturing Play Fairway Mapping: Mapping zones with likely effects from faulting and fracturing related to seal and reservoir (Exercise)


    Day 2

    Play Fairway Mapping (continued)

    - Reservoir Play Fairway Mapping: Making reservoir facies, thickness, net-to-gross, net thickness, porosity fairway maps in clastic and carbonate environments (Exercise)

    - Seal Play Fairway mapping: Making seal facies mapping. Converting seal facies to seal capacity (Exercise)

    - Charge Play Fairway Mapping: Defining the kitchen area and migration pathways using simple petroleum system “modeling.” Making Distance from Object maps.(Exercise)


    Day 3

    Play Fairway Mapping (continued)

    - Charge Play Fairway Mapping: Defining the kitchen area and migration pathways using simple petroleum system “modeling.” Making Distance from Object maps.(Exercise)

    - Timing Risk: Seal and seal effectiveness and migration timing risk using Petroleum System 1D modeling and Quick Look seal capacity mapping. What controls seal effectiveness and charge timing risk? (Demo)


    Calibrating of seal lithologies to well data and HC columns for prediction of seal effectiveness timing and risk. Making seal capacity maps for seal chance and estimation of HC columns from petroleum system models (Exercise)


    Day 4

    Play Fairway Mapping (continued)

    - Common Risk Segment Mapping to define high potential areas in play. Making Common Risk Segment maps and Composite Common Risk Segment maps (Exercise)

    - Continuous Chance mapping to define best prospects (Exercise)

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

    1) Basics of Basin-to-Play and Play-to-Prospect Exploration. How knowledge of basin and play type can be used to define likely trap, reservoir, seal, and petroleum system type

    2) Making play fairway maps for structural and stratigraphic traps including faulting, fracture and diagenetic zones

    3) Making play fair way maps for reservoir presence and quality. Creating regional gross thickness, net-to-gross, porosity, and net thickness maps. Using the available well data to create calibrated functions

    4) Making facies maps for reservoir, seal, and source rock. Using facies maps to map rock quality for reservoir, seal effectiveness, and source richness.

    5) Creating regional seal capacity and regional porosity maps calibrated to available wells

    6) Making quick look petroleum system maps showing transformation ratio, vitrinite reflectance, HC generation mass, and migration fairway maps for generation and migration

    7) Creating play fairway maps on non-geological elements

    8) Making Direct Chance maps in Petrel

    9) Using play fairway maps to create Common Risk Segment Maps in Petrel. Displaying maps with risk factors. Exporting Common Risk Segment Petrel geopolygon maps to ArcGIS for further interface with cultural data. Exporting Common Risk Segment Petrel geopolygon maps to GeoX for Play Resource Assessment

    10) Creating continuous chance maps for calculating the chance factors for the risk elements: Trap, Reservoir Charge, and Seal and combining these to identify leads and prospects with highest chance of success

    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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