Universal frac sleeve
US8936075B2 · kind B2 · utility
5Cited by
1References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 29, 2010 |
| Grant date | Jan 20, 2015 |
| Priority date | — |
| Expiry date | Oct 3, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/2607
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wellhead assembly is provided. In one embodiment, the wellhead assembly includes a universal frac sleeve assembly for isolating portions of a wellhead assembly from pressurized fracing fluid. The universal frac sleeve assembly may include an inner sleeve, an outer sleeve, and a seal. Axial movement of the inner sleeve relative to the outer sleeve causes the seal to expand radially, thereby forming a seal within the wellhead assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.