Borehole fluid containing a lubricating composition—method for verifying the lubrification of a borehole fluid—application with respect to fluids with a high ph
US6750180B1 · kind B1 · utility
8Cited by
7References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 12, 2000 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Dec 12, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2030/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a borehole fluid comprising a lubricating compound containing at least one amphiphilic non-ionic compound obtained by reacting at least one vegetable oil or fatty acid as such or in a polymerized state on at least one amino alcohol. In one variant, the compound can be mixed with a solvent. The invention also relates to a method for verifying the lubrication power of a water-based fluid. The invention further relates to the application of said method to borehole fluids with a high pH.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.