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Online gas sampling equipment in oil field oil delivery pipe

A gas sampling and oil pipeline technology, applied in the petroleum field, can solve the problems affecting the stable transportation of crude oil, the gap of composition and mass ratio, and the error of composition.

Inactive Publication Date: 2022-08-02
东营职业学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the gas sampling work in the oil pipeline, the sampling valve on one side of the oil pipeline is usually opened to allow part of the crude oil in the oil pipeline to flow through the sampling valve. In this operation, part of the crude oil flowing through the oil pipeline will be diverted to the sampling valve after the sampling valve is opened, which will affect the normal and stable transportation of crude oil in the oil pipeline. In addition, this operation can only extract Valve gas, and in the oil pipeline, the composition and mass ratio of the gas inside the crude oil and the gas outside the crude oil are different, so most of the extracted gas comes from the crude oil located outside the oil pipeline, resulting in the There is an error between the composition of the gas sample and the composition of the gas in the oil pipeline

Method used

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  • Online gas sampling equipment in oil field oil delivery pipe
  • Online gas sampling equipment in oil field oil delivery pipe
  • Online gas sampling equipment in oil field oil delivery pipe

Examples

Experimental program
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Effect test

Embodiment 1

[0030] An on-line gas sampling device in oil pipelines, such as Figure 1-Figure 6 As shown, it includes a stirring unit, a gas collection unit, a sampling unit, an upper oil pipe 1, a top pipe 2, an upper arc pipe 3, an annular slider 4, a lower arc pipe 5, a bottom pipe 6 and a lower oil pipe 7; the upper oil pipe The lower end of 1 is connected with the top pipe 2; the lower end of the top pipe 2 is connected with the upper arc pipe 3; the lower side of the upper arc pipe 3 is slidably connected with an annular slider 4; The lower arc-shaped pipe 5; the inner composition space of the upper arc-shaped pipe 3, the annular slider 4 and the lower arc-shaped pipe 5 is a spherical arc surface structure; the lower side of the lower arc-shaped pipe 5 is connected with a bottom pipe 6; the bottom pipe The lower end of 6 is connected with a lower oil pipe 7; the right side of the bottom pipe 6 is connected with a stirring unit; the upper side of the stirring unit is connected with an...

Embodiment 2

[0043] like Figure 1-Figure 6 ,as well as Figure 9-Figure 11 As shown, this embodiment is further optimized on the basis of Embodiment 1. In this embodiment, the inner side of the annular slider 4 is not connected to the oil stirring plate 105, and also includes a degassing guide unit, an annular slider 4 is provided with a degassing guide unit, the degassing guide unit includes a guide assembly, a fixed rod 405 and a degassing rod 406; a guide assembly is fixed around the inner side of the annular slider 4; the upper spherical shell 206 is surrounded Four fixing rods 405 are fixedly connected to the outer surface of the rod; from top to bottom, four degassing rods 406 are welded to the outer sides of the four fixing rods 405 respectively.

[0044] The guide assembly includes a fixed plate 401, a rotating shaft 402, a guide plate 403 and a torsion spring 404; eight fixed plates 401 are fixed around the inner side of the annular slider 4; from top to bottom, the eight fixed ...

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Abstract

The invention relates to the field of petroleum, in particular to online gas sampling equipment in an oil field oil delivery pipe. In order to solve the technical problem that the component composition of an extracted gas sample and the component composition of gas in an oil delivery pipe have errors in the gas sampling work of the oil delivery pipe. The online gas sampling equipment in the oil delivery pipe of the oil field comprises a gas collecting unit, a sampling unit and the like, the inner side of the gas collecting unit is connected with a sampling unit. According to the method, crude oil is controlled to generate pressure difference in the oil pipeline, gas is squeezed to the middle of the oil pipeline by the crude oil, and the crude oil located on the periphery of the oil pipeline and the crude oil in the oil pipeline are mixed together under stirring of the stirring equipment; in addition, the gas sampling component has a self-dredging function, and after the gas sampling work is completed, self-dredging treatment is carried out on the gas exhaust channel in time.

Description

technical field [0001] The invention relates to the field of petroleum, in particular to an on-line gas sampling device in an oil pipeline in an oil field. Background technique [0002] The oil pipeline located in the oil field has a large internal crude oil flow and a wide range of crude oil sources. Therefore, the composition of the gas contained in the oil pipeline is quite different. It is necessary to regularly sample the gas in the oil pipeline, and analyze the gas samples in the later stage. , and timely adjust the extracted crude oil to ensure the stability of the output products and the qualified rate of gas components in the oil pipeline. [0003] In the gas sampling work in the oil pipeline, the sampling valve on one side of the oil pipeline is usually opened, so that part of the crude oil in the oil pipeline flows through the sampling valve, and part of the accompanying gas passes through the sampling valve, and the gas sampling equipment will flow through the sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/24
CPCG01N1/2226G01N1/2247G01N2001/2267
Inventor 王克玲
Owner 东营职业学院
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