Calibration device of multi-dimensional nuclear magnetic resonance logging tool

Abstract

The invention provides a calibration device for a multi-dimensional nuclear magnetic resonance logging tool, the device comprising: a scale cylinder assembly, an external container for holding a variety of calibration solutions, and a delivery pump; the scale cylinder assembly includes: a scale cylinder and a scale cylinder Fixing mechanism; the first hollow tube in the scale tube is coaxially sleeved in the second hollow tube, the left end surface extends from the left edge of the two hollow tubes along the direction perpendicular to the central axis, and the vertical line between the right edges of the two hollow tubes The right end surface is extended in the direction of the central axis, and a cavity is formed between the first hollow cylinder, the second hollow cylinder, the left end surface and the right end surface, and a plurality of fan-shaped accommodation cavities are separated in the circumferential direction of the cavity. A calibration solution is filled in the cavity, and the center of the first hollow cylinder is used to coaxially set the probe of the multi-dimensional nuclear magnetic resonance logging tool to be calibrated; the calibration cylinder fixing mechanism is fixedly connected with the calibration cylinder; The outer container is pumped into the corresponding holding chamber.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of nuclear magnetic resonance logging, in particular to a calibration device for a multi-dimensional nuclear magnetic resonance logging tool. Background technique [0002] Nuclear magnetic resonance logging technology is a technology that uses the principle of nuclear magnetic resonance to detect the formation around the borehole. It is detected by multi-dimensional nuclear magnetic resonance logging tool. According to different measurement parameters, multidimensional nuclear magnetic resonance logging tools can be divided into one-dimensional nuclear magnetic resonance logging tools and multidimensional nuclear magnetic resonance logging tools. With the development of nuclear magnetic resonance logging technology, multidimensional nuclear magnetic resonance logging tools have been widely used. The multi-dimensional nuclear magnetic resonance logging tool includes two-dimensional nucl...

AI Technical Summary

Problems solved by technology

[0004] Since the calibration device of the existing multidimensional nuclear magnetic resonance logging tool stores the same calibration solution in the circumferential direction of 360 degrees, the space dimension is limited, and only after each calibration solution is calibrated, the type of calibration solution in the calibration cylinder is replaced, and then Calibration of another calibration solution is performed, so the calibration efficiency of the multidimensional NMR logging tool is greatly reduced

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