FIELD: drilling engineering.
SUBSTANCE: invention relates to geotechnological methods for extracting minerals, in particular to oil, gas, and geological prospecting well completion and repair. Foamed plugging composition containing (wt %) burnt lime as chemical reaction initiator (3.5-8.75), aluminum powder as gas-releasing substance (0.1-0.25), sodium glass as filler (2-15.6), and water additionally contains Portland cement as binding material (60-65) and sulfate-type argil (1-2.5).
EFFECT: reduced price and enabled controlling gas release time to create artificial filter with specified permeability and strength parameters.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| FOAMED PLUGGING COMPOUND | 1994 |
|
RU2087673C1 |
| FROTH-FORMING COMPOSITION FOR HOLE DEVELOPMENT | 1992 |
|
RU2047639C1 |
| GROUTING MORTAR | 2011 |
|
RU2477740C1 |
| COMPOSITION FOR RESERVOIR CONSOLIDATION AND FOR FILTER CASE FILLING INSIDE WELL | 2004 |
|
RU2258797C1 |
| EXPANDING GROUTING MORTAR ( VARIANTS ) | 2001 |
|
RU2222688C2 |
| COMPOSITION FOR RESERVOIR CONSOLIDATION AND FOR FILTER CASE FILLING INSIDE WELL | 2004 |
|
RU2258798C1 |
| GROUTING MORTAR | 1994 |
|
RU2082872C1 |
| GROUTING MORTAR | 1993 |
|
RU2078906C1 |
| HIGH-STRUCTURE GROUTING MIXTURE | 2011 |
|
RU2474603C2 |
| SELECTIVE ACTION GROUTING MORTAR | 2013 |
|
RU2524595C1 |
