1、 Application field
In the oil exploitation industry, surfactant, as an oil displacement agent, can not only be used alone, but also be combined with polyacrylamide, alkali and other chemicals for binary composite flooding and ternary composite flooding. Surfactant can significantly reduce the interfacial tension between oil and water, promote the desorption and effective dispersion of crude oil from rocks, drive the residual oil, improve oil washing efficiency, and improve oil recovery.
2、 Product characteristics
This product can reduce the oil / water interfacial tension value to 10-3 ~ 10-5mn / m. temperature and salt resistant groups are introduced in the product synthesis process, which increases the adaptability to high temperature and high salt reservoirs. It has good compatibility with polyacrylamide. It can be used alone as oil displacement agent or combined with other types of surfactant. The product is safe and convenient to use.
3、 Product index
project | index |
Class I | Class II |
Basic performance | appearance | Flowable liquid (20 ℃), no pungent smell |
pH | 7.0～9.0 |
Dissolution time，min | ≤10.0 |
Solid content，% | ≥45.0 |
Organochlorine content，% | 0.0 |
interfacial tension，mN/m | IFT≤5×10-3 |
Static adsorption：IFT＜1×10-2 |
application performance | interfacial tension，mN/m | Calcium resistance：IFT＜5×10-3 |
Polymer compatibility：IFT＜8×10-3 |
Ultra low interfacial tension concentration window，% | 0.1～0.6 |
Oil washing capacity，% | ≥40.0 |
application performance | Calcium resistance | The solution is clear without obvious precipitation |
Static adsorption，mg/g砂 | Adsorption loss≤2 |
Ultra low interfacial tension ratio range | PS：Surfactant=3:1～1:3 | / |
Compatibility with Polyacrylamide，% | Viscosity retention≥95.0 | Viscosity retention≥98.0 |
4、 Packaging, transportation and storage of various models in barrels and cans or in a cool, dry and ventilated environment according to customer requirements, with a shelf life of 12 months.
