Invert emulsion drilling fluids with fatty acid and fatty amine rheology modifiers
US10927284B2 · kind B2 · utility
0Cited by
4References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2020 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Jan 15, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
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 C16 to C18 saturated linear alpha carboxylic acid, a fatty dimer diamine, a filtration control agent, a weighting agent including manganese tetroxide, and a bridging agent including calcium chloride. 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.