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Water content detection device and technological method for oil-water separation equipment

A technology of oil-water separation and water detection, which is applied in the direction of measuring devices, analysis materials, material inspection products, etc., can solve the problems of oil production units such as economic loss, exceeding the standard, and complex layers, so as to reduce the operating intensity of employees, broad application prospects, The effect of high safety and reliability

Pending Publication Date: 2018-11-02
XIAN CHANGQING TECH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Changqing Oilfield develops oil reservoirs with many blocks and complex layers. The physical properties of crude oil vary greatly among different blocks and layers. Influenced by factors such as unstable emulsion effect, the current crude oil dehydration process is difficult to ensure that the water content of commercial crude oil exported by oil-water separation equipment has always been in a state of compliance
The water content of commodity crude oil exceeds the standard, which will cause economic losses to oil production units, may lead to disputes with crude oil transfer and measurement units, and increase the operating costs of downstream refining and chemical enterprises
[0003] At present, domestic oilfields mainly install water content analyzers at the crude oil output outlets of dehydration stations. If oil with excess water content is found to be exported, it is difficult to take remedial measures, and because multiple dehydration equipment is running at the same time, it is impossible to determine which equipment dehydrates beyond the standard.

Method used

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  • Water content detection device and technological method for oil-water separation equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like figure 1 As shown, a water detection device for oil-water separation equipment at least includes oil-water separation equipment 6, one end of the oil-water separation equipment 6 is connected to the water-containing oil inlet 19 through an upstream pipeline, and the other end of the oil-water separation equipment 6 is connected to a downstream pipeline, the downstream pipeline is connected to the standard crude oil outlet 20 after passing through the dehydrated crude oil outlet cut-off valve 9, the water content analyzer bypass valve 16, the standard crude oil outlet electric valve 18, and the water content analyzer bypass valve 16 on the downstream pipeline Both ends are connected with a moisture analyzer 11; when the moisture analyzer is overhauled, the dehydrated crude oil passes through the bypass valve 16 of the moisture analyzer to the downstream pipeline, which does not affect normal production.

[0030] The upper part of the oil-water separation equipment 6...

Embodiment 2

[0033] On the basis of embodiment 1, the front end of the water-containing analyzer 11 and the front end of the water-containing analyzer bypass valve 16 are provided with a water-containing analyzer front cut-off valve 10, and the rear end of the water-containing analyzer 11 is connected to the water-containing analyzer. A pressure transmitter 12 , a temperature transmitter 13 , and a shut-off valve 15 behind the moisture analyzer are sequentially arranged between the back ends of the through valve 16 .

[0034] The downstream pipeline between the water content analyzer bypass valve 16 and the standard crude oil outlet electric valve 18 is also connected in parallel with an excess crude oil output pipeline, and the excess crude oil output pipeline is connected to the excess crude oil outlet 21 through the excess crude oil outlet electric valve 17; The standard crude oil outlet electric valve 18, the standard crude oil outlet 20, the overstandard crude oil outlet electric valve...

Embodiment 3

[0036] On the basis of Example 1, the upper part of the oil-water separation device 6 is connected to the associated gas outlet 22 through the associated gas output pipeline, and the associated gas outlet shut-off valve 8 is arranged on the associated gas output pipeline; The associated gas enters the downstream associated gas treatment equipment through the associated gas outlet 22 .

[0037] The bottom of the oil-water separation device 6 is connected to the sewage outlet 23 through a sewage pipeline, and a sewage shut-off valve 5 is arranged on the sewage pipeline. When the equipment is overhauled and maintained, the sludge and other mechanical impurities at the bottom of the equipment are discharged to the sewage outlet 23. Station sludge treatment system.

[0038] The rear part of the oil-water separation device 6 is connected to the produced water outlet 24 through the produced water output pipeline. The produced water outlet shut-off valve 7 is arranged on the produced ...

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Abstract

The invention provides a water content detection device and technological method for oil-water separation equipment. The water content detection device at least comprises the oil-water separation equipment; one end of the oil-water separation equipment is connected with a water-containing oil inlet through an upstream pipeline; the other end of the oil-water separation equipment is connected witha downstream pipeline; the downstream pipeline sequentially passes through a dehydrated crude oil outlet cut-off valve, a water content analyzer bypass valve and an up-to-standard crude oil outlet electric valve and then is connected with an up-to-standard crude oil outlet; water content analyzers are connected with two ends of the water content analyzer bypass valve on the downstream pipeline inparallel respectively; an associated gas outlet is formed in the upper part of the oil-water separation equipment; a sewage draining outlet is formed in the bottom of the oil-water separation equipment; a produced water outlet is formed in the rear part of the oil-water separation equipment. The water content detection technological method provided by the invention can realize online monitoring ofwater content after oil passes through the separation equipment, critical alarming of the water content and a flow interlocking automatic switching function after the water content exceeds the standard; the water content detection technological method has the advantages of simple technology, high automation degree and the like.

Description

technical field [0001] The invention relates to the technical field of oil-water separation detection in oil fields, in particular to a water content detection device and a process method for oil-water separation equipment. Background technique [0002] Changqing Oilfield develops oil reservoirs with many blocks and complex layers. The physical properties of crude oil vary greatly among different blocks and layers. Affected by factors such as unstable emulsion effect, the current crude oil dehydration process is difficult to ensure that the water content of commercial crude oil exported by oil-water separation equipment has always been in a state of compliance. Exceeding the water content of commodity crude oil will cause economic losses to oil producing units, may lead to disputes with crude oil transfer and measurement units, and increase the operating costs of downstream refining and chemical enterprises. [0003] At present, domestic oilfields mainly install water conte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/28
CPCG01N33/2847
Inventor 田鹏林罡王春辉郭刚翟博文王智张园李民民华创
Owner XIAN CHANGQING TECH ENG