Downhole sealing apparatuses and related downhole assemblies and methods
US11326412B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 15, 2019 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Mar 13, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B3/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole sealing apparatus comprises a propellant section and a sealing element section adjacent the propellant section. The propellant section comprises an outer housing, at least one propellant structure within the outer housing, and at least one initiator device adjacent the at least one propellant structure. The sealing element section is configured to isolate a region of a borehole in a subterranean formation responsive to pressure of gases produced through combustion of at least one propellant of the at least one propellant structure of the propellant section. A downhole assembly and a method of isolating portions of a borehole in a subterranean formation are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.