George L. Scott1, Gary Covatch2
(1) RealtimeZone & D.O.E. National Energy Technology Laboratory, Roswell, NM
(2) DOE National Energy Technology Laboratory, Morgantown, WV
ABSTRACT: New Downhole-blended Real-time Fracture Stimulation of Deep Gas Reservoirs
An innovative real-time stimulation procedure allows operators to make instantaneous changes in composite fluid rheology and proppant concentration at the perforations via dowhole blending. In successful field-testing, a downhole-blended composite stimulation fluid mixture was injected into a deep Morrow sandstone gas reservoir at 12,100-12,300 feet. The stimulation mix was comprised of CO2 that was injected down tubing, and methanol, gel and proppant that was injected down casing. The end result was a commercially productive gas producer in a well that had been previously scheduled for plugging, and at less than half of the typical injection pressures and fracture stimulation cost. A gamma tracer survey confirmed the results of this innovative completion method.
AAPG Search and Discovery Article #90906©2001 AAPG Annual Convention, Denver, Colorado