Method and apparatus for through tubing gravel packing, cleaning and lifting
US6640897B1 · kind B1 · utility
21Cited by
26References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2002 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Apr 15, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/122
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Method and Apparatus for gravel packing, cleaning and lifting wells, including through tubing methods, circulating well fluids through a coiled tubing string having a leak protection barrier operable for at least a portion of the string passing above a wellhead and employing a circulating and release sub.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.