摘要:
The invention concerns a probe for generating seismic waves, comprising at least: - a tubular body (10) having a first end linked to an electrical power cable, - a capacitor bank, arranged inside the body (10), - a spark gap, installed at a second end of the body and linked to the capacitor bank, suitable for generating a seismic wave when the energy accumulated by the capacitor bank is released, characterised in that: the capacitor bank is formed from cylindrical capacitors (621) comprising bases each having a different polarity, the capacitors (621) are mounted coaxial to each other parallel to the main axis of the body, and the capacitors (621) are electrically linked into at least two groups of capacitors connected in parallel, each group of capacitors having a positive pole and a negative pole, said groups being arranged in the body (10) such that the facing poles of two adjacent groups are of the same polarity.
摘要:
The present invention relates to an electrical device (10) for well stimulation, said device comprising a plurality of sections (11), said sections being suitable for being assembled, end to end, such as to form a tool (10a) comprising a first and second electrode, said second electrode being an electrically insulated peripheral electrode of said first electrode, said first and second electrodes of the tool forming, at one of the ends of the tool, a stimulation head (15). Additionally, one end of a body of a first section (11a) comprises a peripheral ring (16) that is rotatably movable and translatably immobile relative to said body of said first section, said peripheral ring (16) comprising a thread suitable for engaging with a thread (133) of the second electrode of one end of a second section (11b).
摘要:
The invention relates to a diagnostic device (10) of a seismic probe (1), said probe comprising, in an elongate tubular body (9), an electronic module (3), an array of capacitors (4) and a spark gap (5) suitable for generating a shock wave in a drilling well (2), said device including at least one sensor (11) suitable for measuring at least one parameter of the shock wave in accordance with time, characterised in that said sensor is attached to an inner surface of a wall of the tubular body, at a predetermined distance other than zero from the spark gap in the direction of the electronic module. The invention also relates to a diagnostic method using the signals from the sensor (11).