FIELD: oil and gas industry.
SUBSTANCE: invention refers to boring of oil and gas wells and can be employed at their cementing. A spreading additive contains shale ashes and additionally a water solvent reagent containing "Krep" and carboxy-methyl cellulose at the ratio of 1.68:1.0 or "Krep" and tri-butyl phosphate at the ratio of 4.3:1.0, or "Krep" and nitrile-trimethyl-phosphonic acid at the ratio of 11.0:1.0, or plasticiser C-3 and sulfacell at the ratio of (4.3-7.8):1.0 at the following ratio of components, wt %: shale ashes 83.3-98.4, the said reagent 1.6-16.7.
EFFECT: control over backfill material spreading, improved characteristics of material spreading, bending and compressing hardness of cement stone and period of cement thickening.
1 tbl, 7 ex
| Title | Year | Author | Number |
|---|---|---|---|
| EXPANSION AGENT FOR BACKFILL MATERIAL | 2015 |
|
RU2649181C2 |
| GROUTING MORTAR FOR CEMENTING AND SIDE SHAFTS WITH HORIZONTAL SECTIONS | 2015 |
|
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| EXPANSIVE PLUGGING MATERIAL | 2009 |
|
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| CEMENT GROUTING LIGHT-WEIGHT MIXTURE | 2009 |
|
RU2399643C1 |
| COMPLEX REAGENT FOR GROUTING MORTAR AND GROUTING MORTAR | 2004 |
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|
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| COMPLEX REAGENT FOR PLUGGING MORTARS | 2001 |
|
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| METHOD OF PREPARATION OF LIGHT-WEIGHT GROUTING MORTAR | 2002 |
|
RU2215124C1 |
| DISPLACEMENT LIQUID | 2004 |
|
RU2268350C1 |
| METHOD FOR REPAIR AND INSULATION WORK IN THE WELL | 2022 |
|
RU2783449C1 |
