Passive magnetic combined vibration damping device for inclinometer while drilling

Abstract

The invention relates to a passive magnetism combined damping device for a drilling inclinometer. The passive magnetism combined damping device which can be used for vibration protection of the drilling inclinometer mainly comprises an inclinometer system, an axial damping system and a radial damping system. The inclinometer system comprises a distribution connector, an upper probe, a battery nipple, a connector, a lower probe, a circuit nipple, a gauging nipple and a guide shoe; the axial damping system comprises a head, a sliding bearing, a moving magnetic steel component, a barrel, a fixed magnetic steel component and a joint; the radial damping system comprises a rubber diaphragm and damping fluid. The axial damping system realizes damping through passive magnetism of a magnetic damper, and the radial damping system uses viscoelastic behavior of rubber and viscidity performance of the damping fluid for damping. Axial vibration and radial vibration of the drilling inclinometer in the well drilling process can be reduced, measuring precision decline of the inclinometer and breakage of parts due to vibration impact are prevented, normal operation of the drilling inclinometer is guaranteed, precision and reliability of the drilling inclinometer are improved, service life of the drilling inclinometer is prolonged, and accordingly oil-gas well direction accuracy is ensured; a drill bit is guided to drill along a preset track, well drilling efficiency is improved, well drilling is fastened, and well drilling cost is lowered.

Description

technical field [0001] The invention relates to a passive magnetic combination damping device for an inclinometer while drilling, which can reduce the axial vibration and radial vibration of the inclinometer while drilling, and prevent the decrease in the measurement accuracy of the inclinometer caused by the vibration impact. Parts are damaged to ensure the normal operation of the inclinometer while drilling, improve the reliability and life of the inclinometer while drilling, so as to ensure the orientation accuracy of oil and gas wells, guide the drill bit to drill along the predetermined wellbore trajectory, improve drilling efficiency, and speed up drilling. Reduce drilling costs. Background technique [0002] The inclinometer while drilling can accurately, reliably and real-time measure various drilling parameters (hole inclination, azimuth, tool face, etc.) With the increasing depletion of oil resources, the increasingly complex geological structure of oil and gas re...

AI Technical Summary

Problems solved by technology

However, during the drilling vibration process, the damping rubber absorbs the vibration of the inclinometer while drilling, and converts the kinetic energy of the inclinometer while drilling into rubber heat energy, which leads to an increase in the temperature of the rubber, a decrease in the damping and vibration reduction effect, and also accelerates the aging of the rubber.

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