Progressive production methods and system
US6508308B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 26, 2000 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Dec 5, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/128
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Methods for staged production from a wellbore include pumps sequentially operated during the life of the well. In described embodiments, production assemblies are used for progressive staged production process in which the production tubing is bifurcated to provide a pair of legs. One of the legs includes a first pump that may be selectively actuated to flow fluid through one of the legs. Means are also provided, including a sliding sleeve and a flapper valve diverter, for blocking production fluid flow through one leg or the other. A second fluid pump is lowered inside of the production tubing to pump fluid after the first pump has failed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.