Patent ID: 7958937

Claim:
A process for hydrofracturing in an underground aquifer and using a water well borehole with a drill stem suspended therein, the steps comprising: using well log data for selecting at least one water-bearing interval in the borehole and determining the depth of the interval and the approximate width of the interval, the well log data including geophysical logging of the borehole, the geophysical logging of the borehole including comparing the logging with borehole cuttings; lowering a hydrofracture tool connected to the bottom of the drill stem, the tool including a pipe section with at least one inflatable packer mounted thereon, a lower end of the pipe section acting as a high pressure injection port; positioning the injection port just above the interval to be fractured; inflating the inflatable packer for sealing an area around the pipe section and the borehole next to the pipe section; introducing high-pressure water through the drill stem and out the bottom of the injection port in the pipe section for fracturing the interval; introducing gravel proppants into the high-pressure water and forcing the proppants into the fractured interval; terminating the high-pressure water and gravel proppants to the interval, deflating the inflatable packer and removing the tool from the borehole; and completing the water well using well casing and a water screen next to the fractured interval in the borehole.