Method of controlling a hydrocarbons production well activated by injection of gas
US6293341A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 17, 1999 |
| Grant date | Sep 25, 2001 |
| Priority date | — |
| Expiry date | Sep 17, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/025
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a method for controlling a liquid and gaseous hydrocarbons production well (1) activated by injection of gas, the well comprising a production string (2) fitted with an adjustable-aperture outlet choke (9), into which gas, the flow rate of which can be adjusted by means of a control valve (6), is injected, the method being characterized in that it comprises a start-up phase which consists in performing the following sequence of steps: PA1 a step of initiating the production of hydrocarbons PA1 a step of ramping up to production speed followed by a production phase, during which phases the outlet choke (9) and the control valve (6) are operated in such a way as to maintain the stability of the flow rate of the produced hydrocarbons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.