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Polymer solution sealed deoxygenation device and method

A polymer solution and sealed container technology, applied in separation methods, chemical instruments and methods, liquid degassing, etc., can solve problems such as incomplete removal, rough sealing technology, unreliable experimental results, etc., to reduce impact and achieve good results , high efficiency and long-term stability

Active Publication Date: 2015-08-26
CHINA PETROLEUM & CHEM CORP +1
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AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it can only remove the oxygen in the air in the container, but cannot completely remove the dissolved oxygen in the polymer solution, and the oxygen content in the polymer solution cannot be measured before sealing, and the sealing technology is relatively rough. unreliable results

Method used

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  • Polymer solution sealed deoxygenation device and method

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Effect test

Embodiment approach

[0042] A preferred embodiment of the method of using the device to carry out deoxygenation sealing of the polymer solution comprises the following steps:

[0043] 1) Close the second control valve 2 and the third control valve 3, communicate with the first port 4 and the second port 5 of the first control valve, and the concentration of the sealed container 13 and its contents is 15000mg / L, and the volume is 500ml polypropylene The amide solution is evacuated to remove oxygen;

[0044] 2) Close the first control valve 1, connect the second port 8 and the third port 7 of the second control valve 2 and the first port 10 and the second port 11 of the third control valve 3, open the inert gas generator, and utilize the inert The gas presses the evacuated polymer solution into the oxygen measuring mechanism to test the oxygen content of the polymer solution;

[0045] 3) If the oxygen content of the polymer solution does not reach the oxygen content standard of 0.1 mg / L, return to ...

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Abstract

The invention discloses a polymer solution sealed deoxygenation device and a method. The polymer solution sealed deoxygenation device comprises a sealed container used for accommodating a polymer solution, wherein the upper part of the sealed container comprises at least two connecting ports including a first connection port and a second connecting port, the lower part is provided with a liquid outlet, and the first connection port is connected with an insert gas generator; a vacuumizing mechanism which is connected with the second connection port, and is used for vacuumizing and deoxidizing of the sealed container and the polymer solution in the sealed container; an oxygen measuring mechanism which is connected with the liquid outlet, and is used for detecting oxygen content of the polymer solution in the sealed container. The polymer solution sealed deoxygenation device can be used for removing oxygen in the polymer solution preferably, measuring oxygen content of the polymer solution accurately, and realizing accurate, convenient, and high efficiency evaluation on the long-term stability of the polymer solution.

Description

technical field [0001] The invention relates to a sealed oxygen removal device, in particular to a sealed oxygen removal device and a method for a polymer solution. Background technique [0002] In the field of oil and gas field development, polymer flooding technology can expand the swept volume of water flooding and increase undeveloped crude oil reserves. It is one of the relatively mature chemical flooding enhanced oil recovery technologies at home and abroad. The key to polymer flooding lies in the long-term stability of the polymer solution, and the oxygen content in the solution is an important factor affecting its stability. [0003] At present, the deoxygenation method of polymer solution in indoor experiments is mainly to deoxygenate through nitrogen in the anaerobic box, and then simply seal it. The disadvantage of this method is that it can only remove the oxygen in the air in the container, but cannot completely remove the dissolved oxygen in the polymer soluti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/00C08J3/00
Inventor 吕成远崔茂蕾海玉芝伦增珉马涛谭中良王友启周国华
Owner CHINA PETROLEUM & CHEM CORP
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