Tubular airlock assembly
US10208564B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2016 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Feb 9, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/2406
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rupture assembly that may be employed in the oilfield industry facilitates the deployment of a tubing string in a well. The rupture assembly may be installed at the bottom of the tubing string for the purpose of trapping air in a lateral section of the tubing, between the rupture assembly and an upper sealing assembly. As a result, the buoyant force in the lateral section reduces the drag encountered while running the tubing through the casing, thereby significantly reducing rig time, or permitting operations where none were possible previously. Once at landing depth, surface pressure may be added to burst and remove the seal and rupture assemblies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.