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U.S. Geological Survey Open-File Report 03-039
Version 1.0

Tables 9-10

Table 9.  Probability distribution of volumetric parameters for oil and gas in Brookian Clinoform Central Play.

Attribute

Units

LTP*

F50

F05

Max

 

Net Reservoir Thickness

feet

40

70

150

300

 

Area of Closure

1000 acres

4

6

18

35

 

Trap Fill

percent

80

100

100

100

 

Porosity

percent

10

16

19

20

 

Porosity-Water Saturation Product

percent

       

6

Hydrocarbon Pore Volume

percent

4

10

13

14

 
             
   

Min

F50

F05

Max

 

Trap Depth (oil)

1000 feet

9

10

11

12

 

Trap Depth (gas)

1000 feet

10

12

13

14

 

Number of Prospects

number

30

55

80

110

 

Total Play Area

million acres

       

6.5

*LTP is lower truncation point for input distribution (see Scheunemeyer, this volume).

Table 10.  Probability of occurrence for play and prospect in the Brookian Clinoform Central Play.

 

Play Attributes

   
 

   Charge (C)

1.0

 
 

   Trap (T)

1.0

 
 

   Timing (F)

1.0

 
 

Play Probability (CxTxF)

 

1.00

       
 

Prospect Attributes

   
 

   Charge (c)

0.9

 
 

   Trap (t)

0.3

 
 

   Timing (f)

1

 
 

Prospect Probability (CxTxF)

 

0.27

       
 

Play Probability x Prospect Probability

 

0.27

       
 

Fraction of Accumulations That Are Oil

0.5

 

 

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