Selective annealing process for perforation guns
US10184157B2 · kind B2 · utility
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17References
19Claims
0Family size
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Key dates
| Filing date | Dec 31, 2013 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Aug 21, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2202/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for manufacturing a perforation gun casing includes providing a perforation gun housing that has a wall of nominal thickness and at least one scallop. Each scallop is a portion of the wall having a reduced thickness relative to the nominal wall thickness. The process also includes applying a selective annealing process to the perforation gun casing. The selective annealing process affects the material properties of the scallop but generally does not substantially affect the material properties of the portions of the wall having a nominal thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.