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2019
|
Invention
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Gemini surfactant for oil displacement, binary combination system for oil displacement, and prepa... |
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2018
|
Invention
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Downhole oil, gas, water and sand separation method and separator. A downhole oil, gas, water and... |
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|
Invention
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Method for separating underground oil, gas, water and sand and separator. A method for separating... |
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2013
|
Invention
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Crown-shaped separation device for separating oil and water in well. The present invention relate... |
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2011
|
Invention
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Crown-shaped separation device for separating oil and water in well. Disclosed in the present inv... |
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2008
|
Invention
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Corrugated settling cup and a multi-cup uniform flux gas anchor. A corrugated settling cup (5) is... |
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2006
|
Invention
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Pumping system. A pumping system is described comprising a bracket being vertically fixed onto th... |
