Downhole apparatus for disrupting filter cake
US10718183B2 · kind B2 · utility
16Cited by
3References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2014 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Feb 4, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/108
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tubular has a retracted configuration and an extended configuration. The tubular is initially in the retracted configuration and run into a bore at least partially lined with filter cake. The tubular is extended such that a filter cake-disrupting member mounted on the tubular defines high points or otherwise has an outer surface of varying radial extent for disrupting or disturbing the filter cake.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.