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Accumulator and downhole measuring device including same

A technology of downhole measurement and accumulator, which is applied in the field of mechanical hydraulics, can solve the problems of complex connection, unfavorable downhole measurement device of the accumulator, etc., and achieves the effect of being easy to use.

Active Publication Date: 2020-07-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, in order to ensure that the probe can be extended and retracted, the downhole measurement device needs to be equipped with multiple accumulators and other components, and make more complicated connections
This is very unfavorable for the use and development of accumulators and the use and maintenance of downhole measurement devices

Method used

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  • Accumulator and downhole measuring device including same
  • Accumulator and downhole measuring device including same
  • Accumulator and downhole measuring device including same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention will be further described below in conjunction with accompanying drawing.

[0025] figure 1 The structure of an energy store 1 according to an exemplary embodiment of the invention is shown schematically. The accumulator 1 includes a substantially cylindrical barrel 10, and a first closing plate 21 and a second closing plate 22 accommodated in the barrel 10, wherein the first closing plate 21 and the second closing plate 22 are longitudinally They are fixed to the cylinder body 10 at a distance from each other in the direction. The accumulator 1 also includes a first piston part 30 and a second piston part 40 accommodated in the barrel 1 . The first piston part 30 is located between the first closing plate 21 and the second closing plate 22, a first piston cavity 31 is formed between the first piston part 30 and the first closing plate 21, and a first piston cavity 31 is formed between the first piston part 30 and the second closing plate 22. El...

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Abstract

The invention relates to an energy accumulator and a downhole measuring device equipped with the same. The energy accumulator comprises a cylinder body, a first sealing plate, a second sealing plate,a first piston part, a second piston part and an elastic component, wherein the first sealing plate and the second sealing plate are fixedly accommodated in the cylinder body and spaced from each other in the longitudinal direction; the first piston part is arranged in the cylinder body, and positioned between the first sealing plate and the second sealing plate; a first piston cavity is formed between the first piston part and the first sealing plate; the second piston part is positioned on the side, away from the first sealing plate, of the second sealing plate; a second piston cavity is formed between the second piston part and the second sealing plate; and the elastic component is positioned between the first piston part and the second sealing plate, and can be compressed correspondingto the movement of the first piston part away from the first sealing plate and / or the movement of the second piston part away from the second sealing plate. The energy accumulator is convenient to use.

Description

technical field [0001] The invention relates to the field of mechanical hydraulics, in particular to an accumulator. The invention also relates to a downhole measurement device comprising such an accumulator. Background technique [0002] An accumulator is a device used in a hydraulic device to store fluid and release it when needed. Typically, accumulators release fluid in emergency situations such as system failures to ensure that the system continues to function for a period of time. For example, when a downhole measurement device (for example, a formation pressure measurement-while-drilling instrument) is working downhole, it needs to extend and retract the probe. If an emergency occurs in the downhole measurement device during the above process, the accumulator is required to provide power for the extension and retraction of the probe, so as to ensure that the action can be completely carried out. [0003] However, it is difficult for the accumulators in the prior ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B1/04
CPCF15B1/04F15B2201/00
Inventor 郑俊华王磊宗艳波钱德儒孙明光王立双张仁龙宋朝晖
Owner CHINA PETROLEUM & CHEM CORP
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