Treatment with SOFIR foaming agent
Foaming agent "SOFIR" - a foaming agent with increased foaming ability in the presence of hardness salts and hydrocarbons, also has demulsifying and detergent properties - is triethanolamine salts of sulfoesters of primary fatty alcohols fractions C8-C10. Designed to intensify oil and gas production.
Technical parameters of the surfactant "SOFIR" allow it to be used for foaming water-gas-condensate solutions with salinity up to 300 g/l, with a condensate content of up to 50% at temperatures up to 100 °C.
Application
The SOFIR" foaming agent is recommended for use in the following technological processes:
| 1 | Elevation of oil well production. |
| 2 | Removal of liquid from gas condensate wells. |
| 3 | Perforation of productive formations. |
| 4 | Development of wells in fields with low formation pressures. |
| 5 | Washing sand plugs. |
| 6 | Water inflow restrictions. |
| 7 | Cleaning gas pipelines from condensate and paraffin deposits. |
| 8 | Acid treatment. |
| 9 | Well killing. |
Characteristics and modifications
surfactant "SOFIR" is available in two modifications: "SOFIR-M" (liquid) and "SOFIR -SF" (solid).
|
Characteristics |
Metrics |
|
|
Title |
SOFIR-SF |
SOFIR-M |
|
Chemical base |
Mixture of anionic and nonionic surfactants |
Anionically active surfactant |
|
Appearance at 20°C, color |
Solid, white to beige |
Fluid, light yellow to brown |
|
Density at 20°C, kg/m3 |
1200-1300 |
1000-1100 |
|
Surfactant rod size, mm: diameter x length |
30 x 400 |
- |
|
Kinematic viscosity at 20°С, mm2/s, max |
- |
50 |
|
Pour point, °C, max |
- |
-3 |
|
Melting point, °С |
70 |
- |
|
Unit |
Кг |
Кг |
|
pH при 20 °С |
7-10 |
7-10 |
|
Shelf life |
36 months |
36 months |
Indicators for the multiplicity and time of expiration of the solid foam concentrate SOFIR-SF (5% solution)
| Mineralization gram/liter | 50% fluid outflow time, sec | Multiplicity | ||
| No gas condensate | 50% gas condensate | No gas condensate | 50% gas condensate | |
| 0 | 28 | - | 19 | - |
| 100 | 25 | 62 | 19 | 18 |
| 200 | 55 | 45 | 21 | 19 |
| 300 | 65 | 45 | 21 | 19 |
Indicators for the multiplicity and time of expiration of liquid foam concentrate SOFIR-M (5% solution)
| Mineralization gram/liter | 50% fluid outflow time, sec | Multiplicity | ||
| No gas condensate | 50% gas condensate | No gas condensate | 50% gas condensate | |
| 0 | 28 | - | 20 | - |
| 100 | 48 | 23 | 18 | 14 |
| 200 | 48 | 14 | 19 | 10 |
| 300 | 60 | 14 | 18 | 10 |
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