Lateral liner tieback assembly
US6079488A · kind A · utility
23Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1998 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | May 15, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a tieback hanger for connecting the liner of a lateral well bore to the parent well bore. The tieback hanger includes a spring which maintains a constant force on the tieback hanger to prevent it from protruding into the parent well bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.