Vertical fracturing process and apparatus for wells
Patent
·
OSTI ID:6524751
A method of permanently propping the mouth of a vertical formation fracture consists of weakening the well pipe axially along 2 lines spaced approximately 180$ from each other through the formation interval to be stimulated. Formation stimulation may be accomplished mechanically, by milling or cutting, or explosively by use of directionally oriented explosive charges or radially directed jet charges or guns. Thereafter, the well pipe halves are forced apart past their yield points by well shooting to create and permanently prop with the casing a fracture in the formation. Long Intervals may be successfully fractured in this manner by leaving occasional spaces or blanks so that the expanded casing walls are provided with necessary support. (9 claims)
- Assignee:
- Esso Production Res. Co.
- Patent Number(s):
- US 3280913
- OSTI ID:
- 6524751
- Country of Publication:
- United States
- Language:
- English
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