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Device for measuring density and constituent containing rate of mixed fluid

A technology of mixing fluid and content rate, which is used in measuring devices, specific gravity measurement, and determination of specific gravity by measuring pressure difference, which can solve problems such as failure to timely reflect changes in oil production in oil wells, difficulty in making correct judgments, and incomplete measurement data. , to achieve the effect of measuring safe and pollution-free, saving manpower and material resources, and improving work efficiency

Inactive Publication Date: 2005-06-29
仇小琦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this manual measurement method is that it not only requires a lot of manpower and complicated measurement and testing equipment, but more importantly, because it cannot measure continuously and on-line for a long time, it cannot reflect the change of oil well output in time, resulting in measurement The data are incomplete and inaccurate, especially when the production of oil, water and gas in the oil well is unstable, the values ​​measured by this manual method often have large deviations, which cannot reflect the actual situation of the production of the oil well, and it is difficult to make correct judgment

Method used

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  • Device for measuring density and constituent containing rate of mixed fluid
  • Device for measuring density and constituent containing rate of mixed fluid
  • Device for measuring density and constituent containing rate of mixed fluid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1, a measuring device in which the mixed liquid flows forward in a serial structure.

[0013] As shown in Figure 1 and Figure 4. The device is composed of a vertical tube 1 and a horizontal tube 2 connected in series and connected vertically at 90 degrees. The length of the horizontal tube and the vertical tube is 800mm, and the inner diameter is 32mm. Fluid flow direction 7 flows in along the ports of the horizontal pipes and flows out from the ports of the vertical pipes. The four pressure measuring instruments 3, 4, 5, and 6 adopt piezoresistive pressure sensors, and are respectively installed on the four collection points B1, B2, A1, and A2 on the horizontal pipe and the vertical pipe, between A1, A2 and B1 , and the distance between B2 are 400mm. The signal processing system 8 adopts an industrial control computer and is connected with four pressure measuring instruments 3, 4, 5, 6 circuits.

[0014] When the present invention worked, the circuit part ca...

Embodiment 2

[0023] Example 2, a measuring device in which mixed fluids flow in reverse in a serial structure.

[0024] As shown in Figure 2 and Figure 4. This measuring device is basically the same as above-mentioned embodiment 1, and difference is only that the flow direction of the liquid flow direction 7 of the mixed liquid in the series pipe is opposite to that of embodiment 1, that is, the liquid flow direction is: vertical pipe→horizontal pipe.

Embodiment 3

[0025] Embodiment 3, a mixed fluid measuring device with a parallel structure.

[0026] As shown in Figure 3 and Figure 4. This measuring device is basically the same as the above-mentioned embodiment 1, the only difference is that the liquid flow direction 7 of the mixed liquid enters from the joint of the vertical pipe 1 and the horizontal pipe 2, and flows out from the two protruding ports of the parallel pipe.

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Abstract

It is a device to measure the density and its element rate of the mixed flow, which comprises level tube, vertical tube, pressure meter, and date process system. The vertical tube and level tube are cascade or parallel connection, both having a pair of collection points; the pressure meter is fixed at the collection points and is connected with the data process system. The invention is suitable to the on-line measurement of the mixed flow density and its element rate under different working conditions and is widely used in petrol, chemical, environment fields.

Description

technical field [0001] The invention relates to a device for measuring fluid density and composition on-line, in particular to a device for measuring the density and water content of crude oil in an oil pipeline. technical background [0002] In the production management of crude oil extraction, one of the issues that decision makers must seriously consider is: how to determine the crude oil extraction plan? How to ensure long-term stable and high production of oil fields? How to rationally develop oilfields and enhance ultimate recovery? ...And one of the keys to solving these problems is to know the mixing density of the produced crude oil and its component content, so as to make analysis and judgment according to the composition and content of the oil, water, natural gas and other mixtures in the crude oil. For a long time, the measurement of crude oil components in our country has been using the manual measurement method, that is, take a small...

Claims

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Application Information

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IPC IPC(8): G01N9/26G01N9/36
Inventor 仇小琦
Owner 仇小琦