Fracturing head with replaceable inserts for improved wear resistance and method of refurbishing same
US7213641B2 · kind B2 · utility
33Cited by
4References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2004 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Jul 21, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/2607
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Fracturing heads with one or more replaceable wear-resistant inserts have annular sealing elements for inhibiting fracturing fluids from circulating between the inserts and a main body of the fracturing head. Worn inserts and degraded sealing elements are easily replaced to refurbish the fracturing head without replacing or rebuilding the main body. Service life of the main body is therefore significantly prolonged. In one embodiment, an entire flow path through the main body is lined with wear-resistant replaceable inserts to further prolong the service life of the main body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.