Double-table vibration test device

Abstract

The invention provides a double-table vibration test device. The double-table vibration test device comprises two auxiliary devices and two vibration devices; each auxiliary device comprises a lifting device and a sliding part; the lifting device is provided with a lifting part; the sliding part is assembled on the lifting part, and the sliding part slides relative to the lifting part in the longitudinal direction; a drilling tool (an object to be tested) is lifted by the two auxiliary devices, so that the weight of the drilling tool does not exceed the maximum bearing capacity of a vibration device, the vibration device is not easy to damage, and the drilling tool is not easy to overturn in the vibration test process.

Description

technical field [0001] The invention relates to the technical field of downhole tool vibration tests, in particular to a double-stage vibration test device. Background technique [0002] The intelligent drilling guide system is a relatively advanced drilling and logging tool in the petroleum field at present. When working in the downhole, it faces a working environment with strong vibration and strong impact. Vibration simulation test to verify the environmental adaptability and reliability of the instrument. For the vibration test of downhole tools, the commonly used method at present is to directly fix the instrument under test on the vibration table through fixtures for vibration test. Since the downhole tool and the vibration table are connected by a ball head, the ball head is a movable structure with a certain deflection angle. Therefore, the downhole tool cannot be stably fixed on the vibration table after being connected by the fixture and the ball head, so there is...

AI Technical Summary

Problems solved by technology

For the vibration test of downhole tools, the commonly used method at present is to directly fix the instrument under test on the vibration table through fixtures for vibration test. Since the downhole tool and the vibration table are connected by a ball head, the ball head is a movable structure with a certain deflection angle. Therefore, the downhole tool cannot be stably fixed on the vibration table after being connected by the fixture and the ball head, so there is a risk that the downhole tool is easy to overturn; in addition, during the vibration test, if the design test conditions are greater than the bearing capacity of the ball head or the vibration table It is easy to damage the ball head and the vibrating table. For the curved downhole tool, it cannot be guaranteed to be kept in a horizontal plane with the vibrating table, that is, the ball head has a deflection angle, and it is easy to damage the ball head and the vibrating table during the vibration test.

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