Universal measuring device for pusher of well logging instrument

Abstract

The invention discloses a logging instrument sidewall contact device universal measuring device which comprises fixing devices fixedly connected with a logging instrument outer shell, supports arranged in the radial direction of the logging instrument outer shell, a calibrating unit for sidewall contact arm force and position measuring, a guiding track and a sliding track. The guiding track and the sliding track are parallel to the axial direction of a logging instrument. The fixing devices are arranged on the logging instrument outer shell at the two ends of a sidewall contact arm respectively. The guiding track and the sliding track are arranged between the supports fixed on the fixing devices and form a frame structure together. The two ends of the guiding track are in rotating connection with the supports. The two ends of the sliding track are fixedly connected with the supports respectively. The calibrating unit comprises sliding blocks arranged in the guiding track and the sliding track in a sliding mode, lifting mechanisms arranged on the sliding blocks parallel to the supports, scaleplates which move in the same direction as the lifting mechanisms synchronously and force measuring probes arranged at the bottom ends of the lifting mechanisms. The structure is simple, applicability is high, operation is convenient, measuring is accurate, the integration degree is high, the logging instrument sidewall contact device universal measuring device is suitable for calibrating, testing and the like of various logging instruments with sidewall contact devices, and application prospect is wide.

Description

technical field [0001] The invention relates to a measuring device, in particular to a measuring device for a pusher of a logging instrument. Background technique [0002] Many logging instruments are designed with a pusher due to functional requirements. The pusher mainly realizes two functions. One is to provide support for the instrument, so that the instrument is centered or eccentric; the other is to move the pusher arm along the well wall. Measure the borehole diameter. Some instruments have one of the above functions, and some instruments have both. When the push arm provides power for the instrument, it is driven by the motor inside the instrument to generate power, and the power is converted into the push force of the push arm through the transmission mechanism; when the push arm performs the function of caliper measurement, Under the action of the spring, the end of the push arm opens and closes to the well wall. As the well diameter changes, the end of the arm a...

AI Technical Summary

Problems solved by technology

In the prior art, there is no device for accurately measuring the thrust of the push arm. The existing caliper calibration device can only use several caliper rings for calibration, and cannot accurately measure any position. Measured by the force of the instrument

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