Method of using sophorolipids or mannosylerythritol lipids as acid corrosion inhibitors in well treatment operations
US-9683164-B2 · Jun 20, 2017 · US
US10190038B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10190038-B2 |
| Application number | US-201514685150-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 13, 2015 |
| Priority date | Apr 21, 2014 |
| Publication date | Jan 29, 2019 |
| Grant date | Jan 29, 2019 |
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Recovery of fluids from a subterranean formation during a well treatment operation is enhanced by injecting into the formation a treatment fluid comprising a sophorolipid.
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What is claimed is: 1. A method of enhancing recovery of a well treatment fluid from a well after subjecting the well to a well treatment operation with the well treatment fluid, the method comprising pumping into the well the well treatment fluid and then, after completion of the well treatment operation, recovering the well treatment fluid from the well, the well treatment fluid comprising at least one sophorolipidic compound selected from the group consisting of: 2. The method of claim 1 , wherein (III) and (IV) are in equilibrium with each other. 3. The method of claim 1 , wherein the well treatment fluid is introduced into the well during a drilling, stimulating or gravel packing operation. 4. The method of claim 1 , wherein the well treatment fluid is introduced into the well during an acidizing or completion operation. 5. The method of claim 1 , where in the well treatment operation is a stimulating, gravel packing or drilling operation.
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