Premium self-emulsifying lubricating additives. These additives are effective regardless of the mineralization level and the salt composition used. They are applicable as both primary and supplementary reagents for improving the friction coefficient (FC). When added at 1% to a drilling mud containing 3% of a base lubricating additive, they achieve an increase in the FC of over 80%, reducing the risk of differential sticking under pressure fluctuations. Increasing the concentration to 3-5% promotes the formation of effective O/W (oil-in-water) emulsion-type drilling fluids with characteristic inhibitive properties. These additives do not alter the overall parameters of the drilling fluid and possess foam suppression properties.
Typical physicochemical properties:
| Parameter name | MDD DL-C | MDD DL-D |
|---|---|---|
| Lubricity in spud mud at 0,5 % concentration | >90% | >92% |
| Lubricity in mineralized (110 kg/m3), weighted (1,30 kg/m3) biopolymer fluid at 1% concentration | >85% | >80% |
| Density at 20°C, kg/m3, not more than | 850 | |
| Kinematic viscosity at 50°C, mm2/s | 90 | |
| Pour point, °С, not more than | -35 | -20 |
| Hydrogen index of 1% water extract, pH units | 5,0–8,5 | |
| Foaming activity, cm3, not more than | 5,0 | |
| Water, %, not more than | traces | |
| Organochlorine compounds, % | absence | |