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Diversion centralizer and petroleum instrument

A technology of centralizer and diversion body, which is applied in the direction of drilling equipment, earthwork drilling, drill pipe, etc., which can solve the problems of irregular mud shaking, short life, poor centralizing effect, etc., to solve irregular shaking, prolong service life, The effect of reducing the chance of being corroded

Active Publication Date: 2017-11-17
BEIJING HAILAN SCI & TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] On the one hand, the present invention provides a diversion type centralizer to solve the problem of irregular shaking of the current centralizer due to the irregular flow of mud; worse and the resulting short lifespan

Method used

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  • Diversion centralizer and petroleum instrument
  • Diversion centralizer and petroleum instrument
  • Diversion centralizer and petroleum instrument

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Embodiment Construction

[0035] The embodiment of the present invention provides a diversion-type centralizer, which solves the problem that the rubber block on the centralizer is severely corroded, and the problem of short service life caused by the friction between the rubber block and the inner wall of the drill pipe cavity is relatively large. At the same time, it can Alleviate the impact of high friction between the rubber block and the inner wall of the drill pipe cavity on the salvage or hoisting of petroleum instruments.

[0036] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention are described below in conjunction with the accompanying drawings The program is described in further detail.

[0037] figure ...

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Abstract

The invention provides a flow guide type centralizer and a petroleum instrument using the same. The flow guide type centralizer comprises a first flow guide body and a second flow guide body which are in butt joint with each other. Flow guide grooves peripherally arrayed are formed in the outer surface of each of the first flow guide body and the second flow guide body. An annular embedding groove is formed in the butt joint position of the first flow guide body and the second flow guide body. A damping ring is embedded into the embedding groove, and the thickness of the damping ring is smaller than the depth of the embedding groove. Metal damping blocks peripherally arrayed are arranged on the damping ring. A limit ring sleeves the periphery of the damping ring. The sum of the thickness of the damping ring and the thickness of the limit ring is larger than or equal to the depth of the embedding groove. Limit holes in one-to-one correspondence to the metal damping blocks are formed in the limit ring. The metal damping blocks extends outwardly from the limit holes and are higher than the outer surface of the limit ring. The flow guide type centralizer is long in service life and capable of preventing the petroleum instrument from generating irregular shaking when the petroleum instrument working in a drill pipe is impacted by mud.

Description

technical field [0001] The invention relates to the technical field of petroleum instrument design, and more specifically, relates to a diversion type centralizer and a petroleum instrument. Background technique [0002] In the process of oil drilling, as the drill pipe of the drilling equipment gradually deepens, the petroleum instruments (such as inclinometers) installed in the drill pipe cavity will successively transmit the detection data to the ground, so as to realize the subsequent processing of the detection data by the ground equipment . With the gradual increase of drilling depth, the position of petroleum instruments is getting deeper and deeper. We know that the drilling environment is relatively harsh, and it will cause great damage to petroleum instruments. Therefore, damage to petroleum instruments occurs from time to time, and correspondingly, maintenance or replacement of petroleum instruments often occurs. [0003] Usually, petroleum instruments are plac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B17/10
Inventor 杨彪
Owner BEIJING HAILAN SCI & TECH DEV
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