FIELD: chemistry.
SUBSTANCE: method of repairing a borehole involves placing the service borehole fluid containing a set of surfactants which includes a cationic surfactant and an anionic surfactant in the borehole. Upon coming into contact with an aqueous solution at temperature from about 10°C to about 200°C, the set of surfactants forms a thickened composition substantially without hydrotropes. The substantial absence of hydrotropes means presence of less than about 0.1 wt % hydrotrope per total weight of the set of surfactants in the borehole.
EFFECT: high efficiency of sealing circulation loss zones.
23 cl, 13 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| VISCOELASTIC CATIONIC COMPOSITIONS OF ETHERS | 2006 |
|
RU2412958C2 |
| POLYCATIONIC VISCOELASTIC COMPOSITIONS | 2006 |
|
RU2411279C2 |
| AQUEOUS SURFACTANT COMPOSITION | 1994 |
|
RU2144945C1 |
| METHOD OF OIL EXTRACTION FROM OIL DEPOSIT | 2006 |
|
RU2452851C2 |
| AMPLIFIERS OF RHEOLOGICAL CHARACTERISTICS | 2007 |
|
RU2432458C2 |
| SYSTEM OF STABILISERS AND ENHANCERS OF FUNCTIONAL QUALITIES OF AQUEOUS LIQUIDS, THICKENED BY VISCOELASTIC SURFACTANTS | 2005 |
|
RU2369736C2 |
| SYNERGETIC EFFECT OF AUXILIARY SURFACTANTS WITH RESPECT TO RHEOLOGICAL CHARACTERISTICS OF LIQUIDS FOR DRILLING, WELL COMPLETION/FORMATION OPENING AND FORMATION HYDRAULIC FRACTURING | 2014 |
|
RU2691906C2 |
| ADDITION OF ZWITTERIONIC SURFACTANT TO WATER SOLUBLE POLYMER TO INCREASE STABILITY OF POLYMERS IN AQUEOUS SOLUTIONS CONTAINING SALT AND/OR SURFACTANTS | 2008 |
|
RU2492210C2 |
| METHOD OF BREAKING OF STRATUM IN UNDERGROUND FORMATION | 1998 |
|
RU2217585C1 |
| HIGH TEMPERATURE LUBRICATING AGENT FOR UPDATING VISCOSITY OF LOW- AND HIGH-DENSITY BRINES | 2006 |
|
RU2453576C2 |
