Invert emulsion drilling fluids with fatty acid and fatty amine rheology modifiers
US10457847B2 · kind B2 · utility
6Cited by
3References
14Claims
0Family size
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Key dates
| Filing date | Nov 30, 2017 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Nov 30, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided here are various invert emulsion drilling fluid compositions. One such invert emulsion drilling fluid is a water in oil emulsion, which can include an invert emulsifier to stabilize the water in oil emulsion, a fatty acid, a 36 carbon fatty dimer diamine, a filtration control agent; and an inorganic mineral including one or more of lime, calcium chloride, and barite. The invert emulsion drilling fluids can be formulated to be substantially free of clay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.