Study of inclined hydraulic fractures
The results of a theoretical and experimental investigation of inclined hydraulic fractures, indicate that such fractures do not generally initiate perpendicular to the maximum tensile stress induced on the borehole wall. Unlike axial or normal hydraulic fractures, a degree of shear failure seems to be associated with the initiation and extension of almost all inclined hydraulic fractures. These fractures often intersect the borehole along 2 diametrically opposite axial lines, thus giving it the appearance of an axial fracture. Inclined hydraulic fractures generally change their orientation as they extend away from the wellbore until they become perpendicular to the least compressive in situ principal stress. Therefore, the borehole trace of such fractures cannot be used for their positive identification.
- OSTI ID:
- 6137484
- Report Number(s):
- CONF-7210140-
- Journal Information:
- Soc. Pet. Eng. AIME, Pap.; (United States), Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Vol. SPE-4062; ISSN SEAPA
- Country of Publication:
- United States
- Language:
- English
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