| 摘要 |
FIELD: oil and gas production. ^ SUBSTANCE: invention relates to compositions of high-watered and stable emulsions widely used in fuel production engineering, to increase oil recovery of formation, for example, when treating high-watered reservoirs, injection and production wells, as well as in gas production processes and for temporary insulation of permeability in downhole zone of formation. Task of invention consists in providing high-viscosity emulsions, concentrated to 86% water, stable on storage, and resistant to deformations and temperatures 90-100°C. Targeted task is solved in developing high-viscosity emulsions based on water and using oil residues of completely exhausted lubricating oils at weight ratios between 73.3:26.7 and 86.5:13.5, respectively. ^ EFFECT: enhanced economical efficiency due replacement of expensive petroleum oils and synthetic surfactants (emulsifiers) with oil residues. ^ 1 tbl |
