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U.S. Department of Energy
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Hydraulic fracturing in salt and potash formations

Conference · · Symp. Salt, (Proc.); (United States)
OSTI ID:7082887
Extensive development programs have been conducted for the past several years to devise techniques for the economical solution mining of potash from the deeper areas of the large Canadian potash deposit. Economic considerations indicate that mining procedures utilizing wells connected by hydraulic fracturing could be attractive. Initial attempts to establish a fracture communication between adjacent wells by initiating a fracture at the base of a potash seam were not productive. The communication appeared to be established momentarily, but it could not be maintained. The selected fracture point was a clay seam which, although thin, appeared to be continuous and to provide a weak plane in the deposit. Analysis of the experiment appeared conclusive in demonstrating that a fracture path along the clay seam was not established and consequently that these weakness planes were not suitable for fracture propagation. A different technique was developed and applied successfully. This new technique offers a high probability of success in initial fractures and virtually guarantees a high percentage of successful fractures in a production well field. (12 refs.)
Research Organization:
Garrett Research and Development Co. Inc.
OSTI ID:
7082887
Report Number(s):
CONF-690456-
Conference Information:
Journal Name: Symp. Salt, (Proc.); (United States) Journal Volume: 2
Country of Publication:
United States
Language:
English