Platform for at least detecting integral straightness of probe nipples of array induction logging instruments

Abstract

The invention discloses a platform for at lest detecting the integral straightness of probe nipples of array induction logging instruments. The platform comprises a horizontal fixing bedplate and a plurality of V-shaped supporting blocks. A straight visual axial marking line is formed on the top of the fixing bedplate; the probe nipples of the induction logging instruments can be supported by the V-shaped supporting blocks, a V-shaped groove with an upward opening is formed in each V-shaped supporting block, and a visual vertical marking line is formed on at least one axial side surface of each V-shaped supporting block and downwardly and vertically extends from the center line of the groove bottom of the corresponding V-shaped groove to a bottom surface of the V-shaped supporting block; the multiple V-shaped supporting blocks are detachably mounted on the fixing bedplate at intervals along the visual axial marking line on the fixing bedplate, and the visual vertical marking line on each V-shaped supporting block is transversely aligned with the visual axial marking line on the fixing bedplate. The platform has the advantages of simple structure, easiness in operation, convenience in maintenance and high universality.

Description

technical field [0001] The invention relates to the detection technology of the structural accuracy of an array induction logging tool, and more specifically relates to a detection platform for the structural accuracy of a three-dimensional array induction logging tool. Background technique [0002] Array induction logging is an important geophysical detection technology, which is based on the mutual induction principle of alternating current. Specifically, array induction logging uses the alternating current in the transmitting coil to induce electromotive force in the receiving coil. Since both the transmitting coil and the receiving coil are in the well to be detected, the alternating current of the transmitting coil must induce eddy currents in the formation around the wellbore. , and the eddy current affects the induced electromotive force of the receiving coil, so the induced electromotive force is related to the strength of the eddy current, that is, to the conductivi...

AI Technical Summary

Problems solved by technology

At present, the existing technologies in this field either use complex measuring or calibration instruments (such as optical measuring instruments) to carry out the above-mentioned detection through cumbersome operation steps, which not only has high cost, but also has low detection efficiency; or uses independent manual measuring instruments to waste time and effort. Perform various measurements and then perform complex calculations, not only the detection efficiency is low, but the detection accuracy is also unsatisfactory

[0016] In particular, to simultaneously measure the concentricity of all the axial coils on the sub-section mandrel of the three-dimensional array induction logging tool probe is a major problem in this field, and there is currently no suitable device to perform this test conveniently

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