FIELD: oil production industry, particularly grouting mortars characterized by reduced density and used for well cementing.
SUBSTANCE: light-weight grouting mortar comprises oil-well Portland cement, light-weight additive, namely hollow silica-alumina microspheres and mixing liquid containing acetone-formaldehyde tar and 6% calcium chloride solution. All above components are taken in the following amounts (% by weight): oil-well Portland cement - 48.08-52.08, silica-alumina microspheres - 10.34-14.42, calcium chloride solution - 36.46-37.75 and acetone-formaldehyde tar - 0.19-1.04.
EFFECT: extended grouting mortar application range due to widened range of grouting mortar density along with maintaining technological capabilities and reduced final cement stone fragility.
15 ex, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2272125C1 |
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|
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| RAW MIXTURE FOR OBTAINING LIGHT-WEIGHT GROUTING MORTAR | 2011 |
|
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|
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|
RU2807721C1 |
| METHOD OF PREPARATION OF LIGHT-WEIGHT GROUTING MORTAR | 2002 |
|
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| LIGHT CEMENTING SOLUTION | 2004 |
|
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| GROUTING MORTAR | 2019 |
|
RU2707837C1 |
| LIGHTWEIGHT PLUGGING MATERIAL | 2013 |
|
RU2555165C2 |
