Well logging sensor connection packaging device suitable for temperature 300 degrees Celsius and pressure 50mpa

Abstract

The invention relates to a well logging sensor connection packaging device suitable for the temperature of 300 DEG C and the pressure of 50MPa. The well logging sensor connection packaging device is characterized by comprising an optical fiber sensor, a sensing optical cable and an optical cable pressing sleeve, wherein the optical fiber sensor comprises an extended first optical fiber tap; the sensing optical cable passes through the optical fiber pressing sleeve; an extending part is provided with a second optical fiber tap; the tail ends of the first optical fiber tap and the second optical fiber tap are fixedly connected; the optical fiber tap adjacent to the connection point only comprises an optical fiber core and a cladding layer; and the outer peripheries of the first optical fiber tap and the second optical fiber tap are entirely coated with a sealing sleeve of which the inside diameter is greater than the outside diameter of an integral optical fiber, so that an optical fiber redundant space is formed between the sealing sleeve and the connection point. According to the device, a coating layer is peeled from the optical cable adjacent to the optical fiber connection point, and the optical fiber redundant space is formed, so that an optical fiber connector is not affected by external force and stress, and the connection point can be effectively protected; and the connector between the optical fiber sensor and the sensing optical cable has favorable mechanical strength and anti-bending capability.

Description

technical field [0001] The invention belongs to the communication field, and relates to a logging sensor connection packaging device suitable for a temperature of 300 degrees Celsius and a pressure of 50 MPa. Background technique [0002] Optical fiber sensing technology is a new type of sensing technology developed rapidly with the development of optical fiber communication technology in the 1970s. Some foreign developed countries have achieved fruitful results in the application research of optical fiber sensing technology, and many optical fiber sensing systems have been put into practical use and become commodities to replace traditional sensors. [0003] The typical structure of optical fiber is a kind of elongated multi-layer coaxial cylindrical solid composite fiber. From inside to outside: core (core layer) → cladding → coating layer. The core part is the core and the cladding, which together form a dielectric optical waveguide, form the conduction and constraint o...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the technical defects of poor mechanical strength and weak bending resistance of the traditional technology at the connection between the optical cable sensor and the sensing optical cable, the present invention provides a logging sensor connection packaging device suitable for a temperature of 300 degrees Celsius and a pressure of 50 MPa (MPa).

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