1 / 21

Fracture Properties Needed

Fracture Properties Needed. Fracture porosity & permeability are both a function of Fracture Width (e) & Fracture Spacing (D). Fracture Porosity. Fracture Porosity Magnitude. Fracture Porosity is Difficult to Calculate and Even More Difficult to Interpret.

lindley
Télécharger la présentation

Fracture Properties Needed

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Fracture Properties Needed

  2. Fracture porosity & permeability are both a function of Fracture Width (e) & Fracture Spacing (D)

  3. Fracture Porosity

  4. Fracture Porosity Magnitude

  5. Fracture Porosity is Difficult to Calculate and Even More Difficult to Interpret

  6. While Fracture Porosity is Small in Magnitude • It is very effective porosity • A possible large volume per well due to large drainage area and reservoir thickness • An assumed high recovery factor

  7. Fracture System Volume as a Function of Fracture Porosity & Drainage Nelson (1985)

  8. Fracture Porosity & Scale 2 ft Nelson (1985)

  9. Depth & Depletion Corrections Are Much More Severe in Fracture Porosity Than in Matrix Porosity

  10. Fracture & Matrix Porosity Compressibility

  11. Fracture & Matrix Permeability Compressibility Tr Ss from Daw & Others (1974)

  12. Fracture Porosity Calculator Nelson (1985)

  13. Fracture Porosity Determinations

  14. Fracture Porosity from Core Analysis

  15. Fracture Porosity vs. Fracture Permeability Nelson (1985)

  16. K. North Sea Chalk Valhall Field Fracture Porosity/ Permeability Relationship Nelson (1985)

  17. Fracture Porosity from Outcrop Fracture Intensities Nelson (1985) Assumes Fracture Width for Ls at 10,000 ft from Lab Measurements

  18. Sometimes Fracture Porosity & Matrix Porosity are Related

  19. Calcite Filled Vessicle Trains Surrounding Fractures in Tert. Basalt West Rozel, Great Salt Lake, Utah

  20. Matrix Saturation Around Fractures in Tert. Basalt Calcite fill in Outcrop West Rozel, Great Salt Lake, Utah

  21. Calcite Along Vessicle Trains Along Fractures in Basalt West Rozel, Great Salt Lake, Utah

More Related