Total Sa

Elf Exploration Production

Elf Aquitaine Production

Pierre Lemetayer

Jean-Louis Beauquin

Emmanuel Toguem Nguete

Michel Casagrande

Christian Fouillout

Matthieu Deleersnyder

Mark Banman

Jacques Poublan

Emmanuel Toguem N'Guete

Félix Ndinemenu

Dominique Mauduit

Felix Ndinemenu

Pascal Flourette

Benoit Girard

Mathieu Deleersnyder

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.

System for treatment of a mixture from a production well

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.

Device for discharging liquids accumulated in a well

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.

Hydrocarbon production facility, production method and upgrade method

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.

Method for controlling a hydrocarbons production installation

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.

Method for extracting hydrocarbons from a tank and hydrocarbon extraction facility

A method is proposed for heating a hydrocarbons reservoir, comprising The method makes it possible to more precisely control injection of the steam into the wellbore, throughout the circulation phase, optimizing the steam injection flow rate throughout the circulation phase while still ensuring the safe operation of the steam circulation phase.

Method for heating a hydrocarbon reservoir

Method of controlling a hydrocarbons production well activated by injection of gas

Method for controlling a device for transporting hydrocarbons between production means and a treatment plant

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.

Method for controlling a hydrocarbons production well of the gushing type

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.

Method of operating a plant for the production of hydrocarbons

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.

Method of operating an oil and gas production well activated by a

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.

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Pau, France

Pierre Lemetayer