Cutting dart and method of using the cutting dart
US8459358B2 · kind B2 · utility
0Cited by
11References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 2010 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Jun 10, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/114
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present disclosure is directed to a cutting dart. The cutting dart comprises a dart body including a first pathway. The first pathway is configured to redirect cutting fluid flowing through a coiled tubing so that the cutting fluid flows radially to impinge against an inner surface of the coiled tubing. A seal is positioned around an outer circumference of the dart body. The present disclosure is also directed to an anchor dart. The anchor dart comprises a dart body and a swellable elastomer positioned around an outer circumference of the dart body. Methods of employing the cutting dart and anchor dart are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.