Downhole assembly having isolation tool and method
US10100601B2 · kind B2 · utility
6Cited by
18References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2015 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Jan 31, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole assembly includes an isolation tool disposable downhole of a perforation gun. The isolation tool includes a tubular body having a seat, and an occluding device supported on the tubular body in an unseated position, and movable to a seated position on the seat in response to at least one of a firing operation of the perforation gun and a selected fluid velocity through the isolation tool. Fluid communication through the isolation tool is allowed in uphole and downhole directions in the unseated position of the occluding device, and blocked in the downhole direction in the seated position of the occluding device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.