The document discusses using in-situ seismic stimulation to enhance oil recovery and production. It describes how a hydro-impact tool delivers shockwaves over long distances, up to 1.5 miles from the source well, stimulating production in other wells. Case studies showed that wells near stimulated wells increased oil production by up to 600% on average and improved decline rates. While effective in some formations, it did not work in others that were too heavy or lacked bypassed oil to mobilize.

1. Possible Mechanisms and Case Studies for Enhancement of Oil Recovery and Production Using In-Situ Seismic Stimulation SPE/DOE IOR April 21-23, 2008 Session 18: Economics of IOR Projects SPE 114025 Bill Wooden and Sergey Kostrov Applied Seismic Research

3. The Hydro-Impact TM Tool Installs and Operates Similar to a Conventional Tubing Pump

5. Enhanced Recovery and Increased Production

6. Analogous to Downhole Earthquakes 26 Wells to the Northwest respond to both earthquakes and seismic. 5 Wells to the Southeast did not Diatomite

7. Shockwaves Travel over Long Distances … Sandstone

8. 68 Wells Respond to Seismic Stimulation Sandstone

9. Seismic Well Gas Injectors Pressure Monitors ? De-watering Wells ? Location of 6 Dewatering Wells

10. 6 Dewatering Wells became Prolific Oil Producers Sandstone Average Oil production increased by 500 percent Average Oil cut increased by 600 percent

11. Long Historical Trendline Sandstone

12. LACT Decline Rate Improved from 14.3 to 11.9% Low Recovery Efficiency Carbonate

13. 3 bbls/D 38 % 2 bbls/D 65 % Wells within a 1.0 to 1.5 Mile Radius from Source No Change 2 bbls/D 200 % 1 bbls/D 33 % 3 bbls/D 38 % 4 bbls/D 50 % 6 bbls/D 32 % 1 bbls/D 50 % 9 bbls/D 20 % 4 bbls/D 50 % 1 bbls/D 50 % 5 bbls/D 122 % Wells within a 0.5 to 1.0 Mile Radius from Source 4 bbls/D 200 % 3 bbls/D 17 % 1 bbls/D 50 % 1 bbls/D 100 % 1 bbls/D 11 % 2 bbls/D 22 % 3 bbls/D 13 % 2 bbls/D 200 % 1 bbls/D 100 % 4bbls/D 20 % 7 bbls/D 200 % Wells within a 0.0 to 0.5 Mile Radius from Source James Dexter Upper Carlisle Lewisville Woodbine - perforated Austin Chalk - perforated Pecan Gap Rodessa Stimulation of Multiple Horizons

14. Fields Where Seismic Stimulation has Not Worked In this field the API gravity was around 16, too heavy to be moved (by that generation of tool) In this field, a blanket sandstone, no by-passed oil was available to be moved by seismic stimulation

15. Dynocard from Well with Seismic Tool Tool fires near top of stroke releasing shockwave.  Load ~ 10,000 lbs Compression occurs during upstroke.

16. The ASR Tool is shipped in 3 Pre-assembled sections It is assembled by a rig crew using standard casing power tongs