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Oil field crude oil sampler capable of sampling under constant pressure

A technology of sampler and crude oil, applied in the direction of sampling, sampling device, instrument, etc.

Pending Publication Date: 2022-06-10
刘坤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the two requirements of ensuring that the crude oil pressure is stable during sampling and the sampling steps are simple and convenient when sampling crude oil in the crude oil delivery pipeline, the present invention An oil field crude oil sampler for constant pressure sampling is provided

Method used

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  • Oil field crude oil sampler capable of sampling under constant pressure
  • Oil field crude oil sampler capable of sampling under constant pressure
  • Oil field crude oil sampler capable of sampling under constant pressure

Examples

Experimental program
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Effect test

Embodiment 1

[0032] After finishing the sampling work of crude oil, the operator keeps pressing down on the handle pull ring 407, so that the draw-in groove on the lower side of the arc clamping plate 406 remains stuck on the protrusion on the outer surface of the swivel ring 108, so that the swivel ring 108 Keep still, then the driving motor 101 drives the transmission shaft 102 to rotate in reverse, so that the pulley 105 and the center pipe 106 rotate in reverse until the first through hole 105b of the pulley 105 and the second through hole 106a of the center pipe 106, and the annular air cushion 201 It is isolated from the lower channel of the ring-shaped fixed plate 202, and then the operator releases the pull ring 407, and reversely toggles the ring-shaped shift block 304, so that the connecting pipe 303 leaves the liquid outlet pipe 109, and finally the drive motor 101 continues to drive The transmission rotating shaft 102 rotates to reset the oil production pipe 107, and the bypass ...

Embodiment 2

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Abstract

The invention relates to the field of chemical engineering, in particular to an oil field crude oil sampler for constant-pressure sampling. In order to solve the technical problems that when crude oil is sampled in a crude oil conveying pipeline, the two requirements that the crude oil pressure is stable during sampling and the sampling steps are simple and convenient are difficult to meet at the same time. The oil field crude oil sampler adopting constant pressure comprises a collecting unit, a constant pressure unit and the like, and the inner side of the acquisition unit is connected with a constant pressure unit for stabilizing fluid pressure. The oil pipeline is designed to be n-shaped, the number of required operation valves is small, a bypass pipeline is short, staggered and complex pipelines are avoided, installation is easy and convenient, residues accumulated in the bypass are washed and cleaned away through pressure difference generated during sampling work, meanwhile, an air cushion in the bypass is rapidly expanded, and the sampling efficiency is improved. Dynamic compensation is carried out for fluctuation of fluid pressure, and it is guaranteed that the crude oil pressure is kept relatively stable in the sampling process.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to an oil field crude oil sampler for constant pressure sampling. Background technique [0002] In the crude oil extraction and transportation operation, the crude oil transported to the surface pipeline is regularly sampled, the composition and water content of the extracted crude oil are detected and analyzed, combined with the crude oil data obtained from the analysis, the crude oil extraction work is regulated in a timely manner , to ensure the smooth progress of crude oil extraction. [0003] There are two sampling methods for crude oil sampling in crude oil transportation pipelines, one of which is to use a loop pipeline to introduce part of the crude oil in the crude oil transportation pipeline into an additional bypass pipeline to form a Crude oil circuit, and each valve is opened successively for sampling. This sampling method can ensure that the crude oil pressure is stab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/20
CPCG01N1/2035G01N2001/205
Inventor 刘坤
Owner 刘坤
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