Stored-energy pressure activated completion and testing tools and methods of use
US11066901B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2018 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Feb 21, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Methods and apparatus of pressure activated completion tools for hydraulic fracturing and related processes are provided. In some embodiments, the hydraulic fracturing apparatuses for well testing and accessing subterranean formations can include a tubular body to be fluidly connected in-line with a completion string, a pressure storage mechanism to store pressure when exposed to hydraulic pressure, and a movable inner shift sleeve operable to slide along the inside of the tubular body from a first position to a second position when exposed to the stored pressure. The tubular body can have flow-port(s) that are blocked when the movable inner sleeve is in the first position and opened when the movable inner sleeve slides to the second position. Uses of such apparatuses can include fracing, toe intervention, and pressure testing of wells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.