Gravel packing method for multilateral well prior to locating a junction
US9243479B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2012 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | May 9, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0035
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A lateral is gravel packed without a junction in place in a single trip into the wellbore. A disconnect is provided between the isolation packer in the lateral and a main bore packer. The inner string assembly in the gravel packing completion releases a disconnect with a shift tool and then releases the main bore packer so that the inner string assembly takes out the main bore packer and the upper portion of the disconnect when pulling out of the hole. A junction is then placed into the main and lateral legs with a packer having a seal bore into which the production string is sealingly stabbed to produce out of the main bore and/or the just completed lateral.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.