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
Key Concepts <ul><li>Not a single well stimulation </li></ul><ul><li>A typical stimulation area is ½ to 1 ½ mile radius </li></ul><ul><li>Over 1 million shockwaves delivered over 8 months </li></ul><ul><li>Each shockwave ~ 2 million watts of power </li></ul>
The Hydro-Impact TM Tool Installs and Operates Similar to a Conventional Tubing Pump
LACT Decline Rate Improved from 14.3 to 11.9% Low Recovery Efficiency Carbonate
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
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
Dynocard from Well with Seismic Tool Tool fires near top of stroke releasing shockwave. Load ~ 10,000 lbs Compression occurs during upstroke.
The ASR Tool is shipped in 3 Pre-assembled sections It is assembled by a rig crew using standard casing power tongs