On demand low shock ball seat system and method
US12371958B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2022 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | May 17, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A technique facilitates temporary plugging of a well string via a ball seat assembly which may be actuated on demand. The ball seat assembly includes a ball seat mechanism which works in cooperation with an on-demand assembly actuated via a pattern of pressure changes applied within the ball seat assembly. The on-demand assembly is constructed such that the pattern of pressure changes enables shifting of the ball seat mechanism to a ball release position. However, the ball seat mechanism is not able to function until the desired pattern of pressure changes is completed. Additionally, the on-demand assembly may be structured such that the ball seat mechanism is transitioned to the ball release position at a low pressure point of the pattern of pressure changes to avoid pressure surges within the well string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.