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High-temperature and high-pressure visual oil-water metering device and method

A high-temperature and high-pressure water, high-temperature and high-pressure technology, used in measuring devices, suspension and porous material analysis, instruments, etc., can solve the problems of time-consuming and laborious, inaccurate measurement, etc.

Pending Publication Date: 2022-01-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It mainly solves the time-consuming and labor-intensive problem of inaccurate oil and water measurement in the existing conventional measurement methods

Method used

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  • High-temperature and high-pressure visual oil-water metering device and method
  • High-temperature and high-pressure visual oil-water metering device and method
  • High-temperature and high-pressure visual oil-water metering device and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] see Figure 1 to Figure 3 , the present invention provides a technical solution:

[0042] A high-temperature and high-pressure visualized oil-water metering device, comprising a metering body, the metering body is provided with a metering chamber, and the metering chamber is a well-shaped channel inner cavity that communicates with each other, that is, the inner well-shaped channel includes an upper horizontal metering channel and a lower horizontal metering channel. channel, left vertical metering channel, right vertical metering channel.

[0043] Further, the left and right ports of the upper horizontal metering channel are equipped with blocking parts, namely dead blocks 3 and 13, and the left and right ports of the lower horizontal metering channel are also equipped with blocking parts, namely dead blocks 4 and 9; The upper port of the metering channel is connected to the high-temperature and high-pressure gas-containing crude oil inlet pipe 1 through a joint, the ...

Embodiment 2

[0078] see Figure 1 to Figure 3 , the present invention provides a technical solution:

[0079] A high-temperature and high-pressure visualized oil-water metering device, comprising a metering body, the metering body is provided with a metering chamber, and the metering chamber is a well-shaped channel inner cavity that communicates with each other, that is, the inner well-shaped channel includes an upper horizontal metering channel and a lower horizontal metering channel. channel, left vertical metering channel, right vertical metering channel.

[0080] Further, the left and right ports of the upper horizontal metering channel are equipped with blocking parts, namely dead blocks 3 and 13, and the left and right ports of the lower horizontal metering channel are also equipped with blocking parts, namely dead blocks 4 and 9; The upper port of the metering channel is connected to the high-temperature and high-pressure gas-containing crude oil inlet pipe 1 through a joint, the ...

Embodiment 3

[0085] see Figure 1 to Figure 3 , the present invention provides a technical solution:

[0086] A high-temperature and high-pressure visualized oil-water metering device, comprising a metering body, the metering body is provided with a metering chamber, and the metering chamber is a well-shaped channel inner cavity that communicates with each other, that is, the inner well-shaped channel includes an upper horizontal metering channel and a lower horizontal metering channel. channel, left vertical metering channel, right vertical metering channel.

[0087] Further, the left and right ports of the upper horizontal metering channel are equipped with blocking parts, namely dead blocks 3 and 13, and the left and right ports of the lower horizontal metering channel are also equipped with blocking parts, namely dead blocks 4 and 9; The upper port of the metering channel is connected to the high-temperature and high-pressure gas-containing crude oil inlet pipe 1 through a joint, the ...

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Abstract

The high-temperature and high-pressure visual oil-water metering device comprises a metering main body, the metering main body is provided with a metering cavity, the metering cavity is a #-shaped channel inner cavity which is communicated with one another, and the #-shaped channel inner cavity comprises an upper transverse metering channel, a lower transverse metering channel, a left longitudinal metering channel and a right longitudinal metering channel. The #-shaped inner cavity in the structural design plays a role of a U-shaped pipe in the experiment process, the physical phenomenon of automatic gravity differentiation of oil and water due to density difference is fully utilized, high-pressure gas-containing crude oil is metered at the upper part of the inner cavity, and high-temperature and high-pressure water is metered at the lower part of the inner cavity. The pressure of the high-pressure gas-containing crude oil and the high-temperature and high-pressure water outlet pipe is controlled to be the simulated oil reservoir pressure through the back-pressure valve, so that the pressure of the whole metering system is always higher than the gas bubble point pressure, the crude oil degassing phenomenon is avoided, the crude oil in the rock core is always kept in a gas-containing state, and a guarantee is provided for the subsequent rock core depressurization and degassing process.

Description

technical field [0001] The invention relates to the technical field of evaluating the remaining oil saturation of the water-flooded layer in the process of oil field development and performing the core depressurization degassing and water saturation correction experiment of the core well in an indoor closed coring well, specifically a high-temperature and high-pressure visual oil-water metering device and methods. Background technique [0002] With the deepening of oilfield water injection development, the water content of reservoirs is getting higher and higher, and the accurate evaluation of the remaining oil saturation of water-flooded formations is an important basis for adjusting the development plan in the later stage of oilfield development. There is an error between the oil and water saturation of cores in closed wells analyzed indoors and the true value of oil and water saturation under formation conditions. For this reason, the water saturation correction for depre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G01N15/08
CPCG01N33/24G01N33/246G01N15/0893
Inventor 张民吕广忠孙志刚李奋刘桂阳贾丽华邢晓璇张礼臻吴秀英王俊
Owner CHINA PETROLEUM & CHEM CORP
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