Water-soluble linear polyphosphazenes in water-based fluids for use in wells or pipelines
US9676987B2 · kind B2 · utility
1Cited by
5References
16Claims
0Family size
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Key dates
| Filing date | Apr 9, 2014 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Apr 9, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods of drilling a wellbore into a subterranean formation or of treating a treatment zone along a wellbore penetrating a subterranean formation or of treating a pipeline, the methods comprising steps of: (A) forming a fluid, the fluid comprising: (i) water; and (ii) a water-soluble linear polyphosphazene; and (B) introducing the fluid into the well or into the pipeline. In addition, a well system and methods are provided including such a fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.