Defoaming agent compositions and methods of making and using same
US9074442B2 · kind B2 · utility
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20References
20Claims
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Assignee
Inventor
Key dates
| Filing date | Feb 28, 2014 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Feb 28, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of servicing a wellbore in a subterranean formation comprising placing a foamed wellbore servicing fluid into a wellbore; flowing the foamed wellbore servicing fluid back to the wellbore surface; and contacting the foamed wellbore servicing fluid with an immobilized defoaming agent structure comprising an inert substrate and a defoamer. A system comprising a foamed wellbore servicing fluid in contact with a de-foaming structure, wherein the de-foaming structure comprises a defoamer covalently bonded to an inert substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.