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Optical fiber pressure sensor device

A pressure sensor and sensor technology, applied in measuring devices, fluid pressure measurement using optical methods, measuring fluid pressure, etc., can solve the problem of polluting the pressure sensor string and achieve a good sealing effect

Active Publication Date: 2017-01-11
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a fiber optic pressure sensor device with good sealing effect and high temperature resistance, which overcomes the problem of external fluid contamination of the pressure sensor string in the prior art

Method used

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  • Optical fiber pressure sensor device
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Embodiment Construction

[0025] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0026] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0027] For the convenience of description, spatially relative terms may be used here, such as "on ...", "over ...", "on the surface of ...", "above", etc., to describe the The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encomp...

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Abstract

The present invention provides an optical fiber pressure sensor device which comprises a sensor body which comprises a first body and a second body which are connected mutually, a first sealing piece which has two conical seal structures at two ends of the first sealing piece and is clamped between the first body and the second body, a fiber pressure sensing module which goes through the first sealing piece, wherein the surface sealing is realized by the two conical seal structures at two ends of the first sealing piece and the first body and the second body, and the surface sealing is realized by the fiber pressure sensing module and the first sealing piece. By using the mode of surface sealing, the optical fiber pressure sensor device can realize a good sealing effect in a high temperature condition.

Description

technical field [0001] The invention relates to the technical field of optical fiber sensing, in particular to an optical fiber pressure sensor device. Background technique [0002] With the deepening and increasing complexity of oilfield development, advanced drilling technology, geophysical prospecting technology, logging technology, reservoir description and other new oilfield technologies are changing with each passing day. Oilfield dynamic monitoring data play an important role in guiding the adjustment of oilfield development plan, fine reservoir The formulation of measures and other aspects are playing an increasingly important role. [0003] At present, the exploitation of heavy oil fields often adopts the form of thermal recovery. Whether it is steam flooding, SAGD, fire flooding or other methods, the temperature of the downhole working environment is getting higher and higher, reaching 250°C or even higher, and electronic pressure gauges can no longer be used. Dow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L11/02G01L19/06
Inventor 潘勇谢斌刘小光芦志伟胡承军李士建努尔买买提钱玉祥段胜男王宁博
Owner PETROCHINA CO LTD