1. Devonian structure-production and Avalon porosity study area 25S to 26S + 32E to 34E

2. producing zones 25S to 26S + 32E to 34E
Lea County, New Mexico
Avalon production light green

3. Structure Avalon Lt Grn
Lea County, New Mexico
Location of SW-NE 5 well structure cross section

4. SW-NE 5 well structure cross section
Lea County, New Mexico

5. Entire Avalon Lt Blu-Lt Grn porosity GT 16 percent.

6. Avalon Lt Blu-Dk Blu porosity GT 16 percent

7. Avalon Dk Blu-Dk Grn porosity GT 16 percent

8. Avalon Dk Grn-Red porosity GT 16 percent

9. Avalon Red-Lt Grn porosity GT 16 percent

10. Conclusions
• Production data supports higher Avalon initial rates and higher estimated
ultimate recoveries in specific Avalon zones with thicker log porosity above 16
percent and covering larger map areas.
• Detailed correlation and mapping of Avalon porosity distribution defines the
production sweet spots for offset infill drilling and explains poor recovery from
wells in thin porosity areas or small porosity pods that drain smaller map areas.
• A gross interval series of Avalon porosity thick trends oriented from NW-SE
indicate deposition sourced from structural highlands to the NW.
• Porosity logs in pilot holes prior to horizontal wells or older wells that tested
deeper structures are crucial for mapping the complex porosity thick trends
within the Avalon and maximizing the Avalon play economics.