Abstract: An electromagnetic coupler includes first and second coupling elements for mounting on respective first and second support elements. The first and second coupling elements include respective first and second annular bodies each including a high magnetic permeability material that houses a conductive winding and an open transverse section. The first and second bodies have complementary shapes that when two support elements respectively receiving the first and second coupling elements are coupled, the first and second bodies form a structure enclosing the first and second conductive windings. The first and second conductive windings are respectively positioned in the first and second bodies such that respective surfaces of the first and second conductive windings are substantially parallel when two support elements respectively receiving the first and second coupling elements are coupled.

Abstract: The invention relates to a method for loading at least one native code on at least one target secure element comprising a java card virtual machine, said method comprising the following steps: providing a modified CAP file composed of at least one custom CAP component comprising a native code; extracting said native code from the custom CAP component; installing said native code in the target secure.

Abstract: A torque anchor intended to block the rotation of a production string with respect to a casing of a well; the torque anchor comprising a body and anchor cassettes comprising a wheel having a circumference and a wheel spindle supporting said wheel, a contact point of the circumference of the wheel being intended to come into contact with the casing, an opposite point being arranged diametrically opposite the contact point. For each anchor cassette, the wheel is mounted on the end of the wheel spindle; a positioning angle comprised between 30° and 180° being defined between a first straight line passing through the center of the casing and the contact point and a second straight line passing through the center of the casing and the opposite point.

Abstract: A torque anchor intended to block the rotation of a production string with respect to a casing of a well, the torque anchor comprising a body, at least two supports mobile with respect to the body, wheels borne by the supports, the wheels being suitable for running on an inner face of said casing, at least one restraining device suitable for exerting a force on said wheels in order to anchor said wheels in said casing. Each restraining device comprises a set of springs suitable for acting on the set of said supports and a guide capable of guiding said set of springs; said guide being borne by said supports; said guide being mobile with respect to at least one support.

Abstract: A tubular component for oil exploration includes an electromagnetic half-coupler that can be coupled to a half-coupler of another tubular component to allow data transmission, wherein an end portion of the tubular component includes a housing accommodating the half-coupler, the half-coupler including a coupling element and an annular armature for the coupling element, the coupling element including an annular body formed from a material with a high magnetic permeability and an electrical conductor having turns, the armature including a first portion and a second portion configured to accommodate the coupling element, the armature being partially surrounded by an isolating and impervious material to protect the half-coupler against infiltration.

Abstract: A component for a drill stem including a tubular body with at least one first end zone and a second end zone. The component includes a sheath for passage of a cable extending inside the tubular body between the first end and the second end zone and at least one liner which lines at least a portion of the inside of the tubular body in the first end zone. At least a first end portion of the sheath includes a first threading. The liner supports a second threading. The first and second threading are screwed together.

Abstract: The invention relates to a method for loading at least one native code on at least one target secure element comprising a java card virtual machine, said method comprising the following steps: providing a modified CAP file composed of at least one custom CAP component comprising a native code; extracting said native code from the custom CAP component; installing said native code in the target secure.

Abstract: A tubular component for a drill stem that can be cabled includes a first end zone, a second end zone, a sheath, the sheath extends between the first end zone and the second end zone, and a liner fixed in a bore of the first end zone. The liner includes at least one take-up chamber for a cable disposed in the sheath.

Abstract: The invention relates to a torque anchor which prevents rotation of a tubing string with respect to a casing of a well for pumping a fluid. The torque anchor comprises a frame intended to be mounted in the casing, an internal channel formed in the frame; a cavity in fluid communication with the internal channel, said cavity extending along a radial direction, and an anchoring piston capable of sliding relative to the frame along the radial direction and of exerting torque on the casing, when the pumped fluid contained in the internal channel exerts force on said anchoring piston. The invention also relates to a system for pumping and rotation prevention and a pumping device equipped with such a torque anchor.

Abstract: An annular device generates essentially radial displacements of a shaft disposed within the device includes a frame, a swiveling ring and in internal ring with which the shaft is associated. Actuators and guide rods within the housing cause the swiveling ring to rotate relative to the frame and the internal ring to be displaced radially such that a shaft associated with the internal ring is radially displaced. The device is useful for drilling trajectory control devices.

Abstract: A torque anchor intended to block the rotation of a production string with respect to a casing of a well, the torque anchor comprising a body, at least two supports mobile with respect to the body, wheels borne by the supports, the wheels being suitable for running on an inner face of said casing, at least one restraining device suitable for exerting a force on said wheels in order to anchor said wheels in said casing. Each restraining device comprises a set of springs suitable for acting on the set of said supports and a guide capable of guiding said set of springs; said guide being borne by said supports; said guide being mobile with respect to at least one support.

Abstract: A torque anchor intended to block the rotation of a production string with respect to a casing of a well; the torque anchor comprising a body and anchor cassettes comprising a wheel having a circumference and a wheel spindle supporting said wheel, a contact point of the circumference of the wheel being intended to come into contact with the casing, an opposite point being arranged diametrically opposite the contact point. For each anchor cassette, the wheel is mounted on the end of the wheel spindle; a positioning angle comprised between 30° and 180° being defined between a first straight line passing through the centre of the casing and the contact point and a second straight line passing through the centre of the casing and the opposite point.

Abstract: A drilling tool steering device includes, consecutively from upstream to downstream, a main body (1) and a steerable housing (2); a deflection system (7); and a flexible transmission shaft (3). The transmission shaft crosses the main body, the steerable housing, and the deflection system longitudinally, is bendable or flexible, and is connected to the main body (1) and to the steerable housing (2) by at least three connections forming bearings (4, 5, 6). Steering is carried out by the deflection system (7) acting by an essentially radial relative displacement of the main body (1) in relation to the steerable housing (2) in proximity of their interface.

Abstract: A component for a drill stem including a tubular body with at least one first end zone and a second end zone. The component includes a sheath for passage of a cable extending inside the tubular body between the first end and the second end zone and at least one liner which lines at least a portion of the inside of the tubular body in the first end zone. At least a first end portion of the sheath includes a first threading. The liner supports a second threading. The first and second threading are screwed together.

Abstract: The invention relates to a personal token for a mobile telecommunication network, hosting application software. The personal token is operable to receive an over-the-air SMS message encapsulating commands directed to the application, open the SMS and extract the commands from the SMS. The steps of opening the SMS and extracting the commands from the SMS are performed by a software entity in the personal token which is distinct from the application, so that the software entity initiates transmission of the extracted commands to the application.

Abstract: A tubular component for oil exploration includes an electromagnetic half-coupler that can be coupled to a half-coupler of another tubular component to allow data transmission, wherein an end portion of the tubular component includes a housing accommodating the half-coupler, the half-coupler including a coupling element and an annular armature for the coupling element, the coupling element including an annular body formed from a material with a high magnetic permeability and an electrical conductor having turns, the armature including a first portion and a second portion configured to accommodate the coupling element, the armature being partially surrounded by an isolating and impervious material to protect the half-coupler against infiltration.

Abstract: A tubular component for a drill stem that can be cabled includes a first end zone, a second end zone, a sheath, the sheath extends between the first end zone and the second end zone, and a liner fixed in a bore of the first end zone. The liner includes at least one take-up chamber for a cable disposed in the sheath.

Abstract: An electromagnetic coupler includes first and second coupling elements for mounting on respective first and second support elements. The first and second coupling elements include respective first and second annular bodies each including a high magnetic permeability material that houses a conductive winding and an open transverse section. The first and second bodies have complementary shapes that when two support elements respectively receiving the first and second coupling elements are coupled, the first and second bodies form a structure enclosing the first and second conductive windings. The first and second conductive windings are respectively positioned in the first and second bodies such that respective surfaces of the first and second conductive windings are substantially parallel when two support elements respectively receiving the first and second coupling elements are coupled.

Abstract: This mandrel (10) comprises a body (16; 22) and a radially expandable annular sealing element (18) which comprises a centring arrangement (46) and a closure arrangement (44) which can be deployed radially between a contracted configuration and a dilated configuration. It further comprises an anchoring element (20) which is positioned at a longitudinal distance from the sealing element (18) and is radially expandable between a retracted state and a deployed state. The mandrel (10) comprises sequencing means (24) which are capable of radially deploying the closure arrangement (44) after the anchoring element (20) and the centring arrangement (46). In an at least partly deployed configuration, the centring arrangement (46) defines at least one axial passage (64) which extends through the annular sealing element (18). The closure arrangement (44) closes the or each axial passage (64) as it is deployed.

Abstract: The invention relates to a safety device for an oil well and to the associated safety installation. The inventive device comprises a valve housing (40) which defines a fluid flow passage (52). The aforementioned housing (40) comprises a valve (48) which is used to seal the passage and which can move between an open position and a closed position and means for permanently biasing the valve towards the closed position thereof. The housing (40) also comprises releasable means (54) for connecting same to a working line with tubing that is intended to move the housing (40) in the conduit. In addition, the device comprises retractable means (42) for supporting the valve (58) in the open position and hydraulic means (44, 46) for actuating the support means (42) in order to activate same upon reception of a valve open control signal. The aforementioned support means (42) and actuation means (44, 46) are solidly connected to the housing (40) such that they can be moved simultaneously under the control of the line.