Device for sampling of natural gas and method for increasing and reducing gas pressure intensity

A gas pressure and natural gas technology, applied in sampling devices, earth-moving drilling, wellbore/well components, etc., can solve the problem of increasing gas samples, and achieve the effect of avoiding impact, avoiding incomplete replacement, and simple structure

Inactive Publication Date: 2017-01-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is no relevant adding device to increase the gas sample
In particular, there is no device in the prior art that can perform both pressurization and decompression operations on gas samples

Method used

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  • Device for sampling of natural gas and method for increasing and reducing gas pressure intensity
  • Device for sampling of natural gas and method for increasing and reducing gas pressure intensity
  • Device for sampling of natural gas and method for increasing and reducing gas pressure intensity

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the drawings.

[0039] figure 1 A device 100 for natural gas sampling according to the present invention is shown. Such as figure 1 As shown, the device 100 includes a container 1, a piston body 2 and a conducting member 3 (may be image 3 Or seen in 4). Among them, the container 1 has an inlet 4 for connecting with a gas source at a wellhead or a gas source in a gas gathering station. The outlet 5 of the container 1 is used to connect with the sampling bottle. The piston body 2 is arranged in the container 1 and is in sealed contact with the container 1, and divides the container 1 into a first space 6 and a second space 7. The piston body 2 can move along the longitudinal direction of the container 1 under the action of force to change the volume of the first space 6 and the second space 7 so as to increase or decrease the pressure of the natural gas therein. Such as image 3 As shown, the condu...

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Abstract

The invention relates to a device for sampling of natural gas and a method for increasing and reducing gas pressure intensity. The device consists of a container with an inlet on one end and an outlet on the other end, a piston body which is set inside the container and which can move along the container in axial direction and divide the container to a first space and a second space, and a breakover part set on the piston body; the breakover part can move along the piston body to realize the interconnection and cut-off of the first space and the second space. The device can increase and reduce the pressure intensity of gas.

Description

Technical field [0001] The present invention relates to a device for sampling and a method for using the same, in particular to a device for sampling natural gas and a method for increasing and decreasing gas pressure. Background technique [0002] As the proportion of natural gas in national energy consumption continues to increase, the demand for natural gas continues to grow. Therefore, in the field of oil and gas industrial production, discovering more natural gas is a major problem facing explorers. In order to solve this problem, it is necessary to study the genesis and accumulation of natural gas. Therefore, it is necessary to sample natural gas to meet the research needs. [0003] In the prior art, the sampling of natural gas is mainly to use metal or rubber pipes to connect the gas source in the wellhead or gas gathering station to the sampling bottle, and to control the gas flow for sampling through valves. Due to the different pressures at the inlet of the gas well or t...

Claims

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Application Information

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IPC IPC(8): E21B49/08G01N1/22
Inventor 孟庆强刘全有朱东亚张殿伟金之钧孙冬胜
Owner CHINA PETROLEUM & CHEM CORP
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