3) 3-D Onion Views - Volumes of Porosity Ranges Across the Field

Table of contents | Glossary | Geology | Depositional model | Heterogeneity | Diagenetic history | Petroleum geology | 1) East-West porosity slices | 2) North-South porosity slices | Onion views of 3-D images | 4) Horizontal slices of porosity | 5) Horizontal and East-West permeability and porosity slices

Image files are stored in the esid_gif (east side view of the field) directory. GIF images are named and numbered such that external viewers can correctly sequence files in the folders. Images can be displayed as slide shows using an external viewer, such as JPEGView or LView, or can be accessed as the volporf.MOV (volumetrics of porosity, single fork file format) stand-alone movie in the movies folder.

Before the movies can be opened, you may need to copy to your hard drive a movie-viewing program; information on how to acquire this freeware and software is listed in the readme for movies file. Due to differences in processing speeds we recommend accessing the standalone movie from the movies folder; however, it can generally be started by clicking 3-D distribution and volumes of porosity in 1 to 2 percent increments.

Small-scale 3-D view toward the eastern field boundary shows volume and layers of porosity . Minimum reservoir, and average Sussex "B" sandstone porosity is 8.5 percent (green); average porosity of reservoir intervals is about 13 percent (yellow).


SLIDE SHOW SINGLE IMAGES

1) 1 to 21 percent porosity - 525.5 million cubic meters. This is the total volume of the reservoir area.

2) 3 to 21 percent porosity - 524.6 million cubic meters

3) 5 to 21 percent porosity - 502.5 million cubic meters

4) 6 to 21 percent porosity - 465.4 million cubic meters

5) 7 to 21 percent porosity - 415.6 million cubic meters

6) 8 to 21 percent porosity - 358.6 million cubic meters. Minimum reservoir porosity is about 8.5 percent. Eight percent porosity and greater comprises approximately 70 percent of the volume of the Sussex "B" sandstone.

7) 9 to 21 percent porosity - 303.9 million cubic meters

8) 10 to 21 percent porosity - 241.3 million cubic meters

9) 11 to 21 percent porosity - 180.5 million cubic meters; or about 35 percent of the field area.

10) 12 to 21 percent porosity - 115.9 million cubic meters; reservoir average porosity is about 12.5 percent. Less than 25 percent of the field volume is 12 percent porosity and greater.

11) 13 to 21 percent porosity - 62.2 million cubic meters; 13 percent and greater is less than 15 percent of the field volume.

12) 14 to 21 percent porosity - 25.9 million cubic meters

13) 15 to 21 percent porosity - 6.6 million cubic meters

  • Return to the table of contents