摘要:
The invention relates to an electric heating device comprising a support (2) and a heating layer (3) made of a carbon fibre composite arranged on the support and connected to an electrical power supply for heating the device. The volume of the heating layer (3) comprises a part consisting of an electroconductive circuit (4) which extends along at least one continuous line, and a non-electroconductive insulation part (5) which fills the rest of the volume of the heating layer.
摘要:
The proposed invention is a device (100) for fracturing a geological reservoir of hydrocarbons which comprises two sealing liners (102, 103) together defining a confined space (104) in a well drilled into the reservoir, an apparatus for regulating the temperature of a fluid in the confined space, a pair of two electrodes (106) arranged in the confined space, and an electric circuit for generating an electric arc between the two electrodes. The circuit comprises at least one source of voltage linked to the electrodes (106) and an inductance coil between the voltage source and one of the two electrodes. The invention therefore allows the improved fracturing of the reservoir.
摘要:
The invention relates to a method for forming an electrical connection in a conduit for transporting a fluid. Said conduit (1) comprises an inner hollow tube (2) and a heating layer (4) comprising first carbon fibres. Said method comprises the following steps: a step (101) of groove formation wherein a groove (6) is made in the heating layer; a step (202) of producing an interface wherein a junction layer (7) is deposited on the heating layer of the groove; and a positioning step (103) wherein a connecting strip (8) comprising second fibres formed from a second electroconductive material is rolled up on the junction layer.
摘要:
Composite strip, and methods for forming a junction between two conduits. A composite strip (10) which extends in a main direction (P) between first and second ends (10a, 10b) and comprises a main strip (11) comprising first fibres (11a) embedded in a matrix (11b). The first fibres are made of carbon, an electroconductive material, and the matrix consists of at least one polymer. The composite strip (10) also comprises a junction layer (17) formed from an electroconductive junction material. The junction layer is arranged on the main strip, only at the ends thereof.
摘要:
The invention relates in particular to a method for fracturing a geological hydrocarbon reservoir, including the static fracturing (S20) of the reservoir by means of hydraulic pressure, and the electrical fracturing (S10) of the reservoir by generating an electric arc in a well drilled into the reservoir. The invention thus enables the improved fracturing of the reservoir.
摘要:
A device is provided for fracturing a geological hydrocarbon reservoir including two packers defining between them a confined space in a well drilled in the reservoir; a pump for increasing the pressure of a fluid in the confined space; an apparatus for heating the fluid; at least one pair of two electrodes arranged in the confined space; and an electric circuit for generating an electric arc between the two electrodes, the circuit including at least one voltage source connected to the electrodes and an inductance between the voltage source and one of the two electrodes. The device permits improved fracturing of the reservoir.