Abstract: The present invention relates to a system for treatment of a mixture from a production well, said mixture comprising a first aqueous liquid and a second oily liquid, the treatment system comprising an extraction tube installed in said well and capable of conducting said mixture from the bottom of said well, a separator capable of separating the first liquid from the second liquid in said mixture, a first end of said tube being connected to the separator, a first injection means capable of injecting a first product into said tube, said first product being capable of improving the flocculation and coalescence of the second fluid in the mixture. Any diameter of the tube between said first end of the tube and a second end of said tube lies in an interval of 10% around a predetermined diameter.

Abstract: The present invention relates to a liquid evacuation device for an extraction well. The device comprises a tank presenting a liquid accumulation area. The tank is connected to a gas evacuation tubing. An insulant limits a flow of fluid between a wall of the tank and a wall of the well, from a first space formed between the insulant and the well bottom to a second space formed between the insulant and the well head. A first opening on the tank enables circulation of a gas-liquid mixture from said first space to a third space formed in the gas evacuation tubing. A second opening on the tank enables circulation of fluid from said second space to the liquid accumulation area. The first opening is made between the liquid accumulation area and the connection to the evacuation tubing.

Abstract: A hydrocarbon production facility includes: a hydrocarbon well; a hydrocarbon production line including: in the well, a production tube, and on the surface, an evacuation tube from the production tube; on the surface, a source of pressurized gas; an injection line of pressurized gas in the hydrocarbon production line, linked to the source of pressurized gas; a pump for circulation of hydrocarbon from the well hydrocarbon circulation; a pneumatic motor for supplying power to the pump, fitted on the injection line of the pressurized gas and adapted to be rotated by expansion of the pressurized gas. A corresponding production method and an upgrade method of a facility are also disclosed.

Abstract: The present invention relates to a liquid evacuation device for an extraction well. The device comprises a tank presenting a liquid accumulation area. The tank is connected to a gas evacuation tubing. An insulant limits a flow of fluid between a wall of the tank and a wall of the well, from a first space formed between the insulant and the well bottom to a second space formed between the insulant and the well head. A first opening on the tank enables circulation of a gas-liquid mixture from said first space to a third space formed in the gas evacuation tubing. A second opening on the tank enables circulation of fluid from said second space to the liquid accumulation area. The first opening is made between the liquid accumulation area and the connection to the evacuation tubing.

Abstract: The present invention relates to a system for treatment of a mixture from a production well, said mixture comprising a first aqueous liquid and a second oily liquid, the treatment system comprising an extraction tube installed in said well and capable of conducting said mixture from the bottom of said well, a separator capable of separating the first liquid from the second liquid in said mixture, a first end of said tube being connected to the separator, a first injection means capable of injecting a first product into said tube, said first product being capable of improving the flocculation and coalescence of the second fluid in the mixture. Any diameter of the tube between said first end of the tube and a second end of said tube lies in an interval of 10% around a predetermined diameter.

Abstract: A hydrocarbon production facility includes: a hydrocarbon well; a hydrocarbon production line including: in the well, a production tube, and on the surface, an evacuation tube from the production tube; on the surface, a source of pressurized gas; an injection line of pressurized gas in the hydrocarbon production line, linked to the source of pressurized gas; a pump for circulation of hydrocarbon from the well hydrocarbon circulation; a pneumatic motor for supplying power to the pump, fitted on the injection line of the pressurized gas and adapted to be rotated by expansion of the pressurized gas. A corresponding production method and an upgrade method of a facility are also disclosed.

Abstract: For controlling a hydrocarbons production installation, comprising at least one hydrocarbons production string activated by a gas injection using a gas injection choke, and a production choke on the string, a method comprises a production phase during which the position of at least one of the chokes is adjusted by cascaded control loops. The loops are driven according to continuously or sequentially developing setpoint parameters. The installation can be controlled more accurately and quickly than in the prior art, as a cascade control loop architecture makes it possible to simplify each of the loops in order to increase the speed of implementation, while still taking account of a greater number of setpoint parameters.

Abstract: The disclosure relates to a method for extracting hydrocarbons from a tank including providing a facility having an injection well including at least one tube for steam injection, a production well including at least one hydrocarbon extraction tube, a set of measuring sensors, at least one hydrocarbon extracting pump in the production well, an automaton for controlling and monitoring the running of the facility; rejecting the steam into the injection well; extracting the hydrocarbons with the pump of the production well; and controlling speed of the pump depending on the difference between the measured temperature at the pump input and the evaporation temperature calculated on the basis of the measured pressure at the input of the pump. The method enables an increase in hydrocarbon production.

Abstract: A method is proposed for heating a hydrocarbons reservoir, comprising the provision of an installation comprising: a first wellbore equipped with an injection string fitted with an adjustable choke and an extraction string fitted with an adjustable choke, a set of sensors, intended to measure physical variables, an automatic device making it possible to control and monitor the operation of the installation; the circulation of steam from one string to the other; the control of the steam injection flow rate in function of a target value; the keeping of a set of physical variables within a predetermined range of values by continuous action of the automatic device on the choke of the injection string, and on the choke of the extraction string.

Abstract: The disclosure relates to a method for extracting hydrocarbons from a tank including providing a facility having an injection well including at least one tube for steam injection, a production well including at least one hydrocarbon extraction tube, a set of measuring sensors, at least one hydrocarbon extracting pump in the production well, an automaton for controlling and monitoring the running of the facility; rejecting the steam into the injection well; extracting the hydrocarbons with the pump of the production well; and controlling speed of the pump depending on the difference between the measured temperature at the pump input and the evaporation temperature calculated on the basis of the measured pressure at the input of the pump. The method enables an increase in hydrocarbon production.

Abstract: The invention relates to a method for controlling a hydrocarbons production installation. The installation comprises at least one hydrocarbons production string activated by a gas injection using a gas injection choke, and a production choke on the string. The method comprises notably a production phase during which the position of at least one of the chokes is adjusted by cascaded control loops. The loops are driven according to continuously or sequentially developing setpoint parameters. The invention makes it possible to control the installation more accurately and quickly than in the prior art, as a cascade control loop architecture makes it possible to simplify each of the loops in order to increase the speed of implementation, while still taking account of a greater number of setpoint parameters.

Abstract: A method is proposed for heating a hydrocarbons reservoir, comprising the provision of an installation comprising: a first wellbore equipped with an injection string fitted with an adjustable choke and an extraction string fitted with an adjustable choke, a set of sensors, intended to measure physical variables, an automatic device making it possible to control and monitor the operation of the installation; the circulation of steam from one string to the other; the control of the steam injection flow rate in function of a target value; the keeping of a set of physical variables within a predetermined range of values by continuous action of the automatic device on the choke of the injection string, and on the choke of the extraction string.

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: a step of initiating the production of hydrocarbons 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.

Abstract: The invention relates to a method for controlling a device for transporting hydrocarbons in the form of a mixture of liquid and gas between production means (1) and a treatment plant (10). The method according to the invention for controlling a device comprising a hydrocarbons transport pipe (6) fitted with an adjustable-aperture outlet choke (9) to which a gas-injection pipe (16) fitted with a control valve (15) is connected, is characterized in that it includes a start-up phase which consists in performing the following sequence of steps: a step of initiating the transport of hydrocarbons, a step of ramping up to transport speed, then a production phase, during which phases the outlet choke (9) and the control valve (15) are operated in such a way as to maintain the stability of the pressure in the pipe (6) for transporting the hydrocarbons produced. The invention finds an application in the operation of off-shore oil production installations.

Abstract: A method for controlling a gushing hydrocarbon production well is disclosed which utilizes a variable aperture outlet choke and a control system to dampen and minimize the effect of liquid and gas plugs flowing through the system.

Abstract: The invention relates to the production of hydrocarbons in the form of oil and gas, by means of a plant comprising several wells, a system for collecting the hydrocarbons produced and a downstream unit for treating the hydrocarbons produced, it being possible for this plant to additionally comprise a pressurized-gas system for activating the wells.According to the invention, the systems and the downstream unit having sensors for measuring physical quantities representative of their operation, each well being controlled according to an individual procedure using modifiable control parameters and data representative of the operating status of the single controlled well, the control parameters used by the individual procedure for controlling each of the wells are automatically modified, depending on the value of at least one of the measured physical quantities and on the data representative of the operating status of all the wells.The application of the invention is in the petroleum industry.

Abstract: The invention relates to the production of hydrocarbons in the form of oil and gas, from a well activated by a pumping system. According to the invention, a hydrocarbon production well comprising a submerged pump (5) driven by an electric motor (6), an oil outlet choke (17) and a gas venting choke (22) is operated by acting, during the various production phases, on the chokes and on the speed of the electric motor (6) either in turn or simultaneously. Furthermore, correct operation of the well is constantly checked and it is also checked that the current drawn by the motor (6) does not cross thresholds that vary as a function of the speed of the motor (6). The invention finds its application in the oil industry.

Abstract: A facility for an oil well, extending from the surface (12) towards an oil-bearing rock stratum (14), includes a first casing (20) placed in the well and forming a flow way towards the surface for the hydrocarbons originating from the oil-bearing rock stratum (14). According to the invention the well receives a second casing (22) forming a second flow way towards the surface for the hydrocarbons originating from the same rock stratum, the facility additionally including a chamber (51) between the casings (20,22) and the well wall (18), which does not contain any hydrocarbons originating from the rock stratum.