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Magnetic probe exploration device for determining residual fossil magnetization of well hole rocks
Magnetic probe exploration device for determining residual fossil magnetization of well hole rocks
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机译:用于确定井孔岩石残留化石磁化强度的磁探针探查装置
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摘要
Apparatus for continuously recording, as a function of the depth, the residual magnetization of the rocks through which a well hole passes, comprising, on the one hand, a measurement probe which contains means for measuring the magnetic susceptibility and the magnetic field and, in a cryostat, three gradiometers and, on the other hand, a processing unit which incorporates an integrator (81) for carrying out integration of the data from the gradiometers, a multiplier (76) for multiplying the magnetic field by the magnetic susceptibility, and a subtractor (83) for deducting this product from the result of the integration.
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