Alternative packer setting method
US7025146B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2003 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Sep 23, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1294
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Fluid setting pressure is delivered to a hydraulically set well packer through an external conduit strapped to the exterior of a well workstring above the packer assembly. The continuity of the external conduit is continued past the packer assembly by following a flow channel along the mandrel sleeve thickness. Representatively, the external conduit may serve a primary well function other than packer setting (e.g. well chemical delivery). A calibrated rupture element in the external conduit is disposed to initially obstruct external conduit flow past the packer element. Consequently, fluid pressure transferred down the external conduit is first channeled to the packer setting pressure chamber. After setting, the fluid pressure in the external conduit is increased to rupture the calibrated element. When the external conduit flow channel is opened by rupture of the calibrated element, and the additional well service function may be accomplished.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.