Composite low cycle fatigue coiled tubing connector
US7562909B2 · kind B2 · utility
3Cited by
29References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2005 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Mar 21, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/57
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A coiled tubing connector having a body and a plurality of entry or transition sections connected to the body wherein the connector has a low cycle fatigue life of at least 30%, more preferably at least 50% of the coiled tubing. A preferred embodiment contains two shoulders that form an annular void, a plurality of centralizers about an exterior of the body, and/or a plurality of elastomer molds separating the centralizers. The connector is preferably longer than the connectors of the prior art and is a composite of fluoroplastics or aluminum alloys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.