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Multi-arm righting device for oil exploitation

A technology for oil extraction and support arm, which is applied to earth-moving drilling, drilling equipment, drill pipes, etc., can solve the problems of unable to continue normal work, unable to play the role of righting, unsatisfactory effect of righting, etc., and achieves a simple structure. , easy to operate, obvious effect

Inactive Publication Date: 2015-05-20
CHENGDU DAMO PETROLEUM MACHINERY GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the existing centralizer is subjected to a sudden increase in external force, it cannot withstand the sudden pressure and cannot play the role of centralization, resulting in unsatisfactory centralization effect and unable to continue normal work

Method used

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  • Multi-arm righting device for oil exploitation

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Experimental program
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Effect test

Embodiment 1

[0020] Such as figure 1 As shown, a multi-arm centering device for oil production includes an upper end 1, a plurality of support arms 4, a plurality of combined spring plates 5, a rear end 3, and a connecting rod connecting the upper end 1 and the rear end 3. The connecting rod includes The sliding front end 21, the sliding middle part a end 22, the sliding middle part b end 23, the sliding back end 24, the upper end 1 is connected to the sliding front end 21, and the front stop ring is also provided at the connection between the sliding front end 21 and the upper end 1;

[0021] The sliding front end 21 and the sliding middle a end 22 are connected, and the sliding front 21 and the sliding middle a end 22 are provided with a fixed part c81 at the junction, and the fixed part c81 can slide along the sliding front end 21 and the sliding middle a end; the sliding middle b end 23 is connected to the sliding back end 24, and a fixed part d82 is also provided at the junction of the s...

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PUM

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Abstract

The invention discloses a multi-arm righting device for oil exploitation. The righting device is provided with multiple assembling spring plates, the assembling spring plates are arranged on multiple supporting arms, a section of a tension spring which can improve the elastic force is added in the structure, the structure can improve the elastic force of the righting device, therefore, when the righting device is subjected to suddenly increasing external force, the righting device can bear the impact of the external force, and a righting function is achieved. The multi-arm righting device for oil exploitation can extend in time with the increasing of the external force and flexibly respond to the change of the external force to buffer the impact of the external force on the righting device; the tension spring can slowly retract when the external force is decreased, assembling springs are pulled to restore, and therefore the righting function is achieved; the structure is simple, the operation is convenient, and the effect is obvious.

Description

technical field [0001] The invention relates to the field of petroleum machinery, in particular to a dobby centralizing device for petroleum exploitation. Background technique [0002] The centralizer is a cementing tool. It is simple to manufacture, beautiful in structure, durable and strong in centralizing force. There are many types of centralizers, which can be divided into roller type, slider type, automatic reversing type, etc. according to the structure. Centralizers with different structures and materials are suitable for oil wells with different types of eccentric wear. The key technology of using centralizer anti-eccentric wear process is the position, spacing and quantity of centralizer installation. [0003] When the existing centralizer is subjected to a sudden increase of external force, it cannot withstand the sudden pressure and cannot play the role of centralization, resulting in unsatisfactory centralization effect and unable to continue normal work. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/10
CPCE21B17/1021
Inventor 贺昶明
Owner CHENGDU DAMO PETROLEUM MACHINERY GRP
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