Finding the right prospects - Integrated Petroleum System-based Play-to-Prospect Exploration

Fundamentals

• The language of Prospecting: Defining the basic terminology – Play, petroleum system, lead & prospect
• Chance Mapping: Making Common Risk segment maps for plays and continuous chance mapping for prospectso
• TRCS chance mapping exercise – Basics for making continuous chance maps with Petrel Chance Mapping tool and extracting unique risk factors for individual leads, prospects, blocks and other opportunities

Learn basic terminology of prospecting. Learn how Integrated Petroleum System Play (down) to Prospect work process follows on from Play-based Exploration and connects the PBE analysis down to the prospect level. Learn to make Common Risk Segments maps and continuous chance maps in Petrel more efficiently than the old “light table” process. Learn how to extract risk factors for prospects from continuous chance maps.              

Finding the best potential within the play - Identifying prospects and prospect risking using continuous chance mapping – Extracting geologically-based, objective, and consistent risk factors for input into prospect assessments

• Reservoir: Reservoir presence and quality mapping and risking.
• Seal: Seal capacity mapping from facies maps. (PSQL exercise). Risking Seal presence and effectiveness.
• Trap (Structure): Mapping structural uncertainty. Creating chance maps with Petrel for direct input of chance into PCM. (Demo of techniques)
• Charge: Defining Vertical and Lateral charge (PSQL exercise). Defining the Kitchen Area. Elements of vertical charge and vertical charge chance. Defining lateral charge risk – Distance from Kitchen & Distance from migration pathway
• Extracting individual risk factors from continuous chance maps for lead and prospect risking (Exercise)
• Revising chance maps for new information- keeping maps continually current

Make a complete Chance Mapping assessment over a play. Create continuous chance maps for Trap, Reservoir, Charge, and Seal       

 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? 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 for individual prospects
• Post-well analysis on existing wells: Why did some fail and others succeed? What are the key risks in the area?
• Evaluating seal effectiveness and charge timing risks on prospects using Petroleum System 1D modeling
• Petroleum System 1D modeling and PS Quick Look exercises – Making calibrated PS1D models, Geological Timing Events Charts, & Seal Capacity Maps (Capillary entry pressure & HC column height)

Learn to make PS1D models and quick look seal capacity maps. Use them to assess the timing risk on prospects. Use them to assess trap fill uncertainty for volumetrics                

 Probabilistic Volumetrics and Chance of Success for Leads and Prospects

• The language of probabilistic volumetrics: Defining the basic terminology- Most-likely, Mean, P10, P50, P90, input distribution types (what to use), exceedance probability outputs
• Things we do wrong when doing probabilistic volumetrics on leads & prospects: Common errors and what to do right
• Odds, Chance of Success, and Uncertainty: The difference. What does COS mean?
• Setting up risk models in GeoX, basic set up of GeoXplorer basin, play, sub-play, segment, prospect structure
• Setting up segment analysis parameters
• Extracting volumetric input ranges and Chance of Success inputs from Petrel
• Volumetric assessment of two leads. (GeoX segment & prospect analysis exercise)
  • What do the inputs mean AND where to get good, geological/Engineering based numbers!
• Prospect Assessment: Combining segments into a single prospect including setting dependencies

Learn the fundamentals of lead and prospect and probabilistic volumetrics and COS determination. Use GeoX to make assessments of volumes and risk on two prospects to see how using map-derived values for Petrel gives results that can be compared and used for ranking.

Prospect Ranking - Beyond “Risked resources”

• Using multi-criteria ranking process to rank prospects (and other opportunities) – The SLB multi-factor ranking process
  • What is wrong with ranking on “risked” resources.”
• Choosing ranking criteria that fit the decision
• Scoring opportunities (Leads and prospects)
• Final ranking
  • Displaying the results in Petrel

Learn to use the multi-factor ranking process to rank the prospects in the study area. Learn to display maps showing the ranking results in Petrel