Automatic acoustic logging instrument and method

A sonic logging tool and sonic technology, applied in the direction of measurement, earthwork drilling, borehole/well components, etc., can solve problems such as spending a lot of time and energy, and large errors, and achieve the effect of integration

Inactive Publication Date: 2016-04-13
XIANGTAN UNIV
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Problems solved by technology

Especially in the case of deep rock formations and dense measurement points, the measured position not only has a large error, but also takes a lot of time and effort

Method used

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  • Automatic acoustic logging instrument and method
  • Automatic acoustic logging instrument and method
  • Automatic acoustic logging instrument and method

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Embodiment Construction

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0039] figure 1 Schematic diagram of the structure of the automatic acoustic logging tool provided by the embodiment of the present invention. Such as figure 1 As shown, the automatic sonic logging tool provided in this embodiment may specifically include:

[0040] Acoustic logging transducer 2 , encoder wireless positioning device 3 , acoustic...

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Abstract

The invention provides an automatic acoustic logging instrument and method. An encoder wireless position finding device is adopted to enable an acoustic logging transducer to automatically track and record the displacement value during movement and automatically conduct sampling according to a set displacement interval, acquired acoustic signals are saved and analyzed to achieve detection and evaluation of the strength and defects of strata, and then integration of a measurement and analysis device and a sampling device and automation of measurement are realized.

Description

technical field [0001] The invention relates to the technical field of rock structure detection in engineering geophysical prospecting, in particular to an automatic sonic logging instrument and a method thereof. Background technique [0002] Acoustic logging is a logging method that measures and records the acoustic properties of the upper rock in the well section, such as the sound velocity and sound amplitude of the rock. The acoustic logging tool is a device that detects the geological characteristics and technical status of the rock formation by collecting the propagation characteristic data of the sound wave in the rock formation and medium. By collecting different positions, test and analyze the obtained acoustic wave parameters of various media, including longitudinal wave test analysis, shear wave test analysis and three-component test analysis, so as to evaluate the strength and defects of this position. The sound velocity can calculate formation porosity, rock me...

Claims

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Application Information

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IPC IPC(8): E21B47/14
CPCE21B47/14
Inventor 龙士国张波
Owner XIANGTAN UNIV
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