Results from the project indicated that further development will be under playa lakes and potash areas that were beyond the regions covered by well control and are not accessible with vertical wells. Results of reservoir simulation studies indicate that pressure maintenance should be started early when reservoir pressure is still high. Therefore, the current focus has more » shifted more to targeted drilling, and the pilot injection will be considered in a more continuous area of the NDP in the future. The 3-D seismic interpretation indicates other areas may be better suited for the initial pilot area. Because the original pilot area appears to be compartmentalized, the lateral continuity between the pilot wells could be reduced.
The implication is that since amplitude attenuation is a function of porosity, then this is not the best area to be attempting a pilot pressure maintenance project. Analysis of the 3-D seismic has shown that wells in the proposed pilot are in an area of poor quality amplitude development. Comparison of seismic data and engineering data have shown evidence of discontinuities in the area surrounding the proposed injector. As a result of the analysis, a proposed pilot area was reconsidered. Analysis, interpretation, and integration of recently acquired geological, geophysical, and engineering data revealed that the initial reservoir description was too simplistic to capture the critical features of this complex formation. Advanced reservoir characterization techniques are being used at the Nash Draw project to develop reservoir management strategies for optimizing oil recovery from this Delaware reservoir.
The Nash Draw Brushy Canyon Pool in Eddy County New Mexico is a field demonstration in the U.
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