A drainage shape you define. In the map, select a map layer based on the target map layers you created and then specify a drainage shape. You can use a default circular shape (80 acres for oil or 640 acres gas), or define your own ellipses with a tilt parallel to the channel trend. Using the long axis, recovery factor, and more, change the balance between initial reserves and cumulative production to define a reasonable shape.
For a more general understanding, you can calculate technical reserves for a larger area using a polygon you define, see Related Topics below.
AccuX uses the following four components to calculate technical reserves for a well:
A drainage shape you define.
The target layer where the pool is
located.
Reservoir properties for the well:
Net Pay Thickness (NPT), effective porosity (Phi), and saturation (Sw,
So, or Sg).
Engineering settings such as the average
"lifetime" of GOR, the RF-recovery factor, and the formation
volume factor for Bo or Bg.
To configure drainage shapes
for individual wells
1. With the desired target layer displayed in the project map, right-click the well for which to calculate reserves and from the shortcut menu, select Drainage Shape > Add.
The Drainage Shape
dialog box appears.
2. Configure the desired drainage shape parameters, click Recalculate to display the results, and then click either OK to display the drainage shape on the project map or click Copy to Clipboard to save the current Drain Shape dialog box to the clipboard so you can paste it into other applications.
Note: To maintain the quality of the pasted image,
from the menu of the application in which you want to paste it, select
Paste Special > Enhanced
Metafile.
