prospect and play analysis
DESCRIPTION
Prospect and Play AnalysisTRANSCRIPT
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Prospect and Play Analysis
Alfred Kjemperud
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Definitions• Petroleum system.
– A group of plays within a given geographical area having a common source rock.
• Play.– A geographically and stratigraphically delimited
area where common geological factors exist in order that petroleum accumulation can occur.
• Prospect.– A potential petroleum trap.– With a mappable reservoir rock volume.
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Petroleum system
Reservoir/Seal distribution
Limit of mature and active Source
Play 2 (confirmed)Play 1
(unconfirmed)
Source Rock Distribution
Field/Discovery
Prospect
Geographical extent of Petroleum System
Modified from R. Birtles, 2000
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• Seismic mapping
Defining structures
Seismic line Prospect Lead
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Prospect or Lead?
• Prospect.– A potential petroleum trap
defined by a grid of seismic lines (at least 2 lines).
• Lead.– A potential petroleum trap
defined by only one seismic line.
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Controlling Factors
• Source• Reservoir• Trap
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Calculation of n
Area for P&L no. factorcalculation (high LOK)n = no.of mapped P&L/area
Green area (Prob.: 0.6-1.0)Max. no. P&L = Area * n * 1.0Mean no. P&L = Area * n * 0.8 Min. No. P&L = Area * n * 0.6
Yellow area (Prob.: 0.4-0.6)Max. no. P&L = Area * n * 0.6Mean no. P&L = Area * n * 0.5 Min. no. P&L = Area * n * 0.4
Total no.of P&LNo. in green area + No in yellow area
Prospect
Lead
Seismic lines
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Play Analysis in GeoX
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Play Analysis in GeoX
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Play Analysis in GeoX
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Play Analysis in GeoX