Low-frequency longitudinal vibration transducer used for oil well sound wave communication and manufacturing method thereof

Abstract

The invention provides a low-frequency longitudinal vibration transducer used for oil well sound wave communication and a manufacturing method thereof. The low-frequency longitudinal vibration transducer comprises a radiation head (1) and at least two crystal stack modules (14). Each crystal stack module is formed by piling piezoelectric crystal plates and metals alternately. Every two adjacent crystal stack modules (14) are connected end to end and generate longitudinal vibration low-frequency sound waves after being connected with the positive pole and the negative pole of a power source. The radiation head (1) is fixed to the front end of the longitudinal vibration transducer and used for outputting the low-frequency sound waves generated through the crystal stack modules (14). According to the low-frequency longitudinal vibration transducer, the piezoelectric crystal plates and the metals are piled alternately, and thus radiating can be conducted effectively; and meanwhile, through the modular design, the operation simplicity and convenience and assembling reliability are greatly improved, and the problems of difficult machining and assembling and liable fracture during application caused by simplex long and thin prestressed screws are effectively solved.

Description

technical field [0001] The invention relates to the technical field of oil well exploration, in particular to a low-frequency longitudinal vibration transducer for oil well sound wave communication and a manufacturing method thereof. Background technique [0002] In today's world, oil has become an important economic lifeline and energy base, and all countries attach great importance to the exploration and development of oil resources. In the process of exploration and development, timely and accurate acquisition of important downhole information is of great significance for oil exploitation, ascertaining the geological structure of oil layers, mastering the status of test oil wells and maintaining sustainable utilization of resources. [0003] With the rapid development of the economy, people's demand for energy is getting higher and higher. Petroleum has become the blood of modern industry and the most important strategic resource, and its exploration and exploitation have...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to propose a low-frequency longitudinal vibration transducer for oil well acoustic wave communication and its manufacturing method in order to solve the technical problem of poor reliability of the low-frequency transducer used in the oil well environment. The low-frequency longitudinal vibration transducer The device realizes the deployment in the narrow inner pipe of the oil well, and has high reliability when used in the oil well acoustic communication

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