Three-dimensional stress analysis of a wellbore with perforations and a fracture
Three-dimensional stress analysis of a wellbore with perforations and a fracture
This study presents results of large scale 3-D elastic analysis of a wellbore with perforations. Both vertical and horizontal wellbores with perforations at different orientations are considered. The extra stresses imposed by a propped fracture at the unfractured perforations are also evaluated. A propped fracture results in increase of the compressive stress around the perforations which is higher in the perforations closer to the fracture and increases with propped width. The increase of compressive stress is much higher at the top/lower faces of perforations which is already less than the existing compressive stress at the lateral faces of the perforations. The results are also discussed in relation to the problem of hydraulic fracture initiation
347-355
Papanastasiou, P.
26755af9-c3b5-4350-b0f0-f83c9fca8e92
Zervos, A.
9e60164e-af2c-4776-af7d-dfc9a454c46e
July 1998
Papanastasiou, P.
26755af9-c3b5-4350-b0f0-f83c9fca8e92
Zervos, A.
9e60164e-af2c-4776-af7d-dfc9a454c46e
Papanastasiou, P. and Zervos, A.
(1998)
Three-dimensional stress analysis of a wellbore with perforations and a fracture.
SPE/ISRM Rock Mechanics in Petroleum Engineering, Trondheim, Norway.
08 - 10 Jul 1998.
.
(doi:10.2118/47378-MS).
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Conference or Workshop Item
(Paper)
Abstract
This study presents results of large scale 3-D elastic analysis of a wellbore with perforations. Both vertical and horizontal wellbores with perforations at different orientations are considered. The extra stresses imposed by a propped fracture at the unfractured perforations are also evaluated. A propped fracture results in increase of the compressive stress around the perforations which is higher in the perforations closer to the fracture and increases with propped width. The increase of compressive stress is much higher at the top/lower faces of perforations which is already less than the existing compressive stress at the lateral faces of the perforations. The results are also discussed in relation to the problem of hydraulic fracture initiation
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Published date: July 1998
Venue - Dates:
SPE/ISRM Rock Mechanics in Petroleum Engineering, Trondheim, Norway, 1998-07-08 - 1998-07-10
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Local EPrints ID: 75089
URI: http://eprints.soton.ac.uk/id/eprint/75089
PURE UUID: ad76c662-79b6-4530-aa82-bc26207006d2
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:48
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Author:
P. Papanastasiou
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