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Closure sampling device

A technology of sampler and sampling tube, applied in wellbore/well parts, earthwork drilling and mining, etc., can solve the problems of high temperature safety hazards, inaccurate sampling, waste of environment, etc., to ensure accuracy, safe and convenient operation, and reduce evaporation Effect

Active Publication Date: 2017-02-15
KARAMAY SHENGLI PLATEAU MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a shut-off sampler, which overcomes the deficiencies of the above-mentioned prior art, and can effectively solve the problems of waste and environmental pollution, inaccurate sampling and high-temperature safety hazards in traditional sampling

Method used

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Embodiment Construction

[0020] The present invention is not limited by the following examples, and specific implementation methods can be determined according to the technical solutions of the present invention and actual conditions.

[0021] In the present invention, for the convenience of description, the description of the relative positional relationship of each component is based on the description attached to the description. figure 1 The layout method is described, such as: the positional relationship of top, bottom, left, right, etc. is based on the attached figure 1 determined by the layout direction.

[0022] Below in conjunction with embodiment and accompanying drawing, the present invention will be further described:

[0023] as attached figure 1 , 2 , 3, the shut-off sampler includes a sampling tube 1, a three-way valve 2, an overflow valve 4, a plunger head 8, a plunger rod 9 and a power unit; the sampling tube 1 is a cylinder with an open left end and a closed right end , the left ...

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Abstract

The invention relates to the technical field of sampling devices, and discloses a closure sampling device. The closure sampling device comprises a sampling pipe barrel, a three-way valve and a power device; the sampling pipe barrel is a barrel with an opening at the left end and the closed right end, the opening at the left end of the sampling pipe barrel is a liquid inlet hole and is communicated with an outlet in the three-way valve, and the sampling pipe barrel and the three-way valve are fixedly installed together; a sampling port is arranged on the left barrel wall of the sampling pipe barrel; and an overflow valve is fixedly installed at the position, outside the sampling pipe barrel, of the sampling port; and a liquid outlet is formed in the right barrel wall of the sampling pipe barrel. The closure sampling device is reasonable and compact in structure and convenient to use; three reversing of the three-way valve, crude oil can be closured into the sampling pipe barrel, the closured crude oil is subject to standing cooling treatment, the crude oil temperature is decreased, evaporation is reduced, and the high-temperature potential safety hazards are eliminated; oil, water and gas in the crude oil are gradually adjusted to be even, sampling errors are reduced, and the sampling accuracy is guaranteed; and then a plunger head is used for pushing the crude oil out from the overflow valve (4) to be sampled, and operation is safe, convenient and rapid.

Description

technical field [0001] The invention relates to the technical field of samplers, and relates to a cut-off sampler. Background technique [0002] The wellhead sampling of the pumping unit is one of the dynamic data collected in the oil production work; through it, the water content of the oil well can be directly understood, the change of the liquid production rate and oil production rate of the oil well can be grasped in detail and accurately, and reliable data can be provided for the dynamic analysis of the oil-water well. Basis; traditional sampling is generally directly connected to the external sampling pipeline from the oil pipeline, and a control valve is installed on the sampling pipeline; when sampling, a sampling cylinder is used to open the control valve to take out the oil sample; this method has the following problems: [0003] 1. Since the fluid inside the pipeline is a mixed phase flow of oil, water and steam, affected by gravity, etc., the distribution in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/08
CPCE21B49/08Y02E30/30
Inventor 张益民樊玉新王亮杨军万宏宾禄红新吕俊锋
Owner KARAMAY SHENGLI PLATEAU MACHINERY CO LTD
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