Method for controlling a liquid and gaseous hydrocarbon production well using injection gas involves using outlet choke and injection gas control valve to control start up phase, that initiates and ramps up production, and production phase

摘要

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:a step of initiating the production of hydrocarbonsa 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.