Abstract: This sealing device for a railway, the railway including a housing extending between a side face of a rail and a side wall of a slot reserved in the ground for housing said rail, is characterized in that it is a sealing device inserted in the housing and fixed in the housing by a suitable putty, and in that it is a resiliently deformable profile, to be able to be inserted under stress in the housing and to be pressed against the side face of the rail and the side wall of the slot.

Abstract: This sealing device for a railway, the railway including a housing extending between a side face of a rail and a side wall of a slot reserved in the ground for housing said rail, is characterized in that it is a sealing device inserted in the housing and fixed in the housing by a suitable putty, and in that it is a resiliently deformable profile, to be able to be inserted under stress in the housing and to be pressed against the side face of the rail and the side wall of the slot.

Abstract: A well-logging tool for a geological formation includes a housing to be positioned in a borehole and an antenna assembly carried by the housing. The antenna assembly includes an antenna housing having a recess therein. A dielectric material layer comprises a basalt fiber composite and is within the recess. At least one antenna coil is supported by the dielectric material layer. An electrical connector is coupled to the at least one antenna coil. Resistivity processing circuitry is coupled to the electrical connector to determine an electrical resistivity of the geological formation based on the at least one antenna coil.

Abstract: The disclosure is about a desiccant box comprising at least one wall defining an inside compartment containing a desiccant material. The box is designed so that: at a first temperature value, the inside compartment is a substantially vapor tight closed compartment, at a second temperature value superior to the first temperature value, at least a portion of the box is permeable to vapor so that vapor can penetrate into the inside compartment.

Abstract: A membrane to compensate for effects on a volume of oil, the membrane is a metal capable of an elastic deformation and having a shape selected to optimize the elastic deformation in a desired manner so as to compensate for the effects on the volume of oil.

Abstract: A downhole assembly may include a housing containing a heat-producing component in thermal communication with a thermal buffering component. The thermal buffering component includes a container (232) having a phase change material disposed therein that is selected to have a phase change at or below a selected temperature.

Abstract: A micro-structured surface for immersing in a multiphase fluid mixture comprises a substrate having pores and a wetting liquid phase trapped in the pores. The wetting liquid phase is immiscible with all the phases of the multiphase fluid mixture. Alternatively, the wetting liquid phase is miscible with one of the phase of the multiphase fluid mixture.

Abstract: A well-logging tool for a geological formation includes a housing to be positioned in a borehole and an antenna assembly carried by the housing. The antenna assembly includes an antenna housing having a recess therein. A dielectric material layer comprises a basalt fiber composite and is within the recess. At least one antenna coil is supported by the dielectric material layer. An electrical connector is coupled to the at least one antenna coil. Resistivity processing circuitry is coupled to the electrical connector to determine an electrical resistivity of the geological formation based on the at least one antenna coil.

Abstract: The disclosure provides a sensor cartridge that includes a protective housing that is resistant to downhole oilfield environment; a sensor within the protective housing able to measure a parameter of the down-hole oilfield environment; an attaching device to interconnect with another sensor cartridge and/or a hub; a data communication unit within the protective housing, the data communication unit providing wireless communication of the measured parameter to the other sensor cartridge and/or the hub when interconnected with the other sensor cartridge and/or the hub; and a power unit within the protective housing, the power unit providing power supply to sensor and/or data communication unit.

Abstract: A membrane to compensate for effects on a volume of oil, the membrane is a metal capable of an elastic deformation and having a shape selected to optimize the elastic deformation in a desired manner so as to compensate for the effects on the volume of oil.

Abstract: To assemble a sensor array having plural sections, the sections of the sensor array are sealably attached, where the sections include sensors and cable segments. An inert gas is flowed through at least one inner fluid path inside the sensor array when the sections of the sensor array are being sealably attached.

Abstract: A micro-structured surface for immersing in a multiphase fluid mixture comprises a substrate having pores and a wetting liquid phase trapped in the pores. The wetting liquid phase is immiscible with all the phases of the multiphase fluid mixture. Alternatively, the wetting liquid phase is miscible with one of the phase of the multiphase fluid mixture.

Abstract: To assemble a sensor array having plural sections, the sections of the sensor array are sealably attached, where the sections include sensors and cable segments. An inert gas is flowed through at least one inner fluid path inside the sensor array when the sections of the sensor array are being sealably attached.

Abstract: To assemble a sensor array having plural sections, the sections of the sensor array are sealably attached, where the sections include sensors and cable segments. An inert gas is flowed through at least one inner fluid path inside the sensor array when the sections of the sensor array are being sealably attached.

Abstract: The invention provides a sensor cartridge comprising: (a) a protective housing (10), the protective housing being resistant to downhole oilfield environment; (b) a sensor (1) within the protective housing able to measure a parameter of the down-hole oilfield environment; (c) an attaching means (5) to interconnect with another sensor cartridge (102) and/or a hub (1OO); (d) a data communication unit (6) within the protective housing, the data communication unit providing wireless communication of the measured parameter to the other sensor cartridge and/or the hub when interconnected with the other sensor cartridge and/or the hub; and (e) a power unit (7) within the protective housing, the power unit providing power supply to sensor and/or data communication unit.

Abstract: The invention relates to a shape memory sleeve to create an annular tightness. More precisely, the invention relates to a ring to provide tightness, made from shape memory alloy material and including an interior annular portion and an exterior annular portion, comprising at least one annular groove or one annular rib on its interior annular portion.

Abstract: To assemble a sensor array having plural sections, the sections of the sensor array are sealably attached, where the sections include sensors and cable segments. An inert gas is flowed through at least one inner fluid path inside the sensor array when the sections of the sensor array are being sealably attached.

Abstract: An electrical cable for use in a downhole application is provided. The cable includes an elongated support layer and an array of insulated conductors bonded to said elongated support layer. The elongated support layer substantially bears a weight of the conductors.