Method of cold water fracturing in drainholes
First Claim
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1. In a lateral borehole extending from a vertical borehole, a method for selectively forming a fracture substantially displaced from said vertical borehole comprising:
- injecting a cooling fluid into the formation surrounding a selected portion of said lateral borehole substantially displaced from said vertical borehole;
injecting a warming fluid into the formation surrounding the unselected portions of said lateral borehole; and
injecting a fracturing fluid into said lateral borehole at a pressure sufficient to initiate a fracture in said selected portion but not in the remaining portions of said borehole.
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Abstract
A method for selectively positioning a fracture in a horizontal borehole comprising injection of a cooling fluid into a preselected portion of the drainhole and thereafter injection of fracturing fluid into the borehole at a pressure sufficient to initiate a fracture in the cooled portion but not in the unselected portions of the drainhole.
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Citations
4 Claims
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1. In a lateral borehole extending from a vertical borehole, a method for selectively forming a fracture substantially displaced from said vertical borehole comprising:
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injecting a cooling fluid into the formation surrounding a selected portion of said lateral borehole substantially displaced from said vertical borehole; injecting a warming fluid into the formation surrounding the unselected portions of said lateral borehole; and injecting a fracturing fluid into said lateral borehole at a pressure sufficient to initiate a fracture in said selected portion but not in the remaining portions of said borehole. - View Dependent Claims (2, 3, 4)
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Specification