TotalEnergies OneTech

The present invention concerns the use of a hydrocarbon fluid as a wood preservative, wherein said fluid comprises less than 1000 ppm by mass of aromatics, has a flash point measured according to standard ASTM D93 higher than 100°C, has a mass ratio normal paraffins/isoparaffins ranging from 0.2 to 1.0 and has an initial boiling point and a final boiling point in range from 265°C to 390°C.

The present invention relates to the use of a bio-sourced fluid as a wood preservative, particularly for the protection of wood against xylophagous species such as wood-boring insects and lignovorous fungi, said fluid having a kinematic viscosity at 40°C from 3 to 6 mm<2>/s, a flash point of higher than 120°C and a pour point lower than -40°C, having a boiling point in the range of 200°C to 400°C and a boiling range below 80°C, said fluid comprising more than 95% isoparaffins and less than 3% of naphtens by weight, a biocarbon content of at least 95% by weight, containing less than 100 ppm aromatics by weight.

A method for analyzing flow entities in a hydrocarbon reservoir including steps of providing (S100) a simulation model (M) of the hydrocarbon reservoir comprising a plurality of flow entities, said simulation model being able to control flow at each flow entity independently and being able to determine an output value, and a step of determining (S200) an interference value (Vi) between a first flow entity and a second flow entity by subtracting a first output value (Vout1) determined from a first simulation via the simulation model (M), and in which in which a flow at first flow entity is controlled and flow at second flow entity is cancelled, and a second output value (Vout2) determined from a second simulation via the simulation model (M), and in which a flow a second flow entity is controlled and flow at first flow entity is cancelled, said interference value being representative of influence between first flow entity and second flow entity.

The present invention relates to a method for CO<2> storage, comprising: - flowing CO<2> in a liquid phase from a storage tank into a subsea heating unit, wherein the temperature of the CO<2> upon entering the subsea heating unit is equal to the temperature of the CO<2> in the storage tank ± 10°C; - flowing the CO<2> through the subsea heating unit, wherein the CO<2> in the subsea heating unit stays entirely in the liquid phase, wherein the CO<2> is heated by the surrounding seawater while it flows through the subsea heating unit; and - collecting heated liquid CO<2> from the subsea heating unit and injecting the heated liquid CO<2> into a subsea subterranean formation.

The disclosure notably relates to a method for controlling a voltage-source converter (VSC) connected to an electricity network. The method includes performing a grid forming (GFM) control of the converter, including a hybrid synchronization control (HSC), and further including a feedforward compensation of a transform of phase voltages in the electricity network. This forms an improved solution for controlling a voltage-source converter connected to an electricity network.

The present invention concerns a control method (100) for controlling a wind farm comprising a plurality of wind turbines.The method comprises a learning phase (1100) and an exploitation phase (1200).During the learning phase receiving (1110) a model architecture is received. The model architecture comprises an attention comprising at least on multi-head self-attention neural network. The learning phase further comprises training (1120) the model architecture according to a reinforcement learning technic implying tuning the tunable parameters of the model architecture to obtain a trained model optimizing a performance of the wind farm. The performance of the wind farm depends on an estimated power output by the wind farm, and losses due to wake effect,The exploitation phase comprises receiving (1210) estimated wind velocities and directions. The exploitation phase further comprises applying (1230) the trained model to derive rotations commands, and sending (1240) the rotation commands to wind turbines.

Le procédé l'injection, à des instants de mesure, dans la cellule de mesure portée par un drone d'un faisceau laser, à une longueur d'onde de mesure caractéristique du gaz traceur à détecter.La signature spectrale du gaz traceur ou de l'ensemble de gaz est plus large qu'une largeur d'accordabilité de la source laser de mesure. Le procédé comprend l'injection, à des instants de référence, dans la cellule de mesure d'un faisceau laser de référence à une longueur d'onde de référence située à l'écart de ladite signature spectrale.Le procédé comporte la transmission de données représentatives de teneur en gaz traceur obtenues à partir du signal de mesure et de données représentatives de référence obtenues à partir du signal de référence à un système de calcul pour calculer une teneur en gaz à partir des données représentatives de teneur en gaz traceur et des données représentatives de référence.

The invention relates to a method for determining surfaces of waterbodies (W) in a target area, the method comprising: - a phase of building a training database (TDB) comprising for each elementary portion (E) of a georeferenced representation of a training area: an aerial image (IM<M>), water index image(s) (IM<W>) derived from the aerial image (IM<M>) using a water index formula and a ground truth (G) binary mask, each elementary portion (E) representing a zone of the training area where at least a part of a waterbody surface (W) is present, - a phase of training a determination model using the training database (TDB) so as to obtain a trained determination model, and - a phase of inferencing the trained determination model.

The assembly comprises an elongated porous dry electrode line (20) comprising an elongated core electrode (30) configured to be electrically connected to an electrical power source or to a utility.The line (20) comprises an outer sheath (32) made at least partially of an ion permeable and gas impervious membrane applied on the electrode (30), the electrode (30) defining inside the outer sheath (32) at least a longitudinal gas circulation canal (34) emerging at one gas collection outlet or gas supply inlet.The assembly comprises a gas capacity to collect gas from the electrode line (20) or to supply gas to electrode line (20), the gas collection outlet or the gas supply inlet of the electrode line (20) being fluidly connected to the gas capacity.

A control method (100) for controlling a wind farm comprising a plurality of wind turbines, based on an estimated wind velocity and an estimated wind direction of the wind on the wind farm. The method comprises receiving a wind direction and a wind velocity. The method further comprises determining (120) a group of yaw angles sets and evaluating (130), for each yaw angle set, a power generated by the wind farm. The method further comprises generating (150) new yaw angle sets and modifying (160) the value of each yaw angle according to a probability law. The method further comprises adjusting (170). The method further comprises selecting (190), among the adjusted yaw angle sets, the set for which the power generated is the highest, the yaw angles of such selection set being the desired yaw angles, and sending (200), to each wind turbine, the respective desired yaw angle.