Method for sealing perforation tunnels with swelling elastomer material
US10787880B2 · kind B2 · utility
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17References
18Claims
0Family size
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Inventor
Key dates
| Filing date | Jun 26, 2018 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Nov 8, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/26
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for sealing perforation tunnels in a well includes steps of pumping an initial volume of fluid into the well, mixing expandable material into a carrier fluid to form an expandable fluid mixture, pumping the expandable fluid mixture into the well to force the expandable material into the perforation tunnels in the well, and holding the expandable material under a hold pressure in the perforation tunnels for a cure period to form perforation plugs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.