FIELD: oil and gas industry.
SUBSTANCE: plugging material contains portland cement, silica-containing component, calcium chloride hardener and a plasticizing agent, at that portland cement, calcium chloride and silica-containing component are subjected to joint disintegrating treatment, and silica-containing component consists of tripoli powder and silica sand with the ratio of 1:10, besides plugging material contains additionally an expansion agent and reinforcement additive with the following ratio, wt %: portland cement - 50-70, silica-containing component consisting of tripoli powder and silica sand with the ratio of 1:10 - 30-50, reinforcement additive - 0.2-0.3 above 100%, plasticizing agent - 0.1-1.0 above 100%, calcium chloride - 0.1-3.0 above 100%, expansion agent - 3.0-5.0 above 100%.
EFFECT: producing the plugging material that ensures fast hardening at normal temperatures and thermal stability of cement stone with high strength properties.
1 ex, 3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
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RU2710943C1 |
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| PLUGGING MATERIAL | 2019 |
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| OIL-WELL COMPOSITION FOR STEAM-INJECTION WELLS | 2007 |
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| GROUTING MORTAR FOR CEMENTING AND SIDE SHAFTS WITH HORIZONTAL SECTIONS | 2015 |
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RU2588066C1 |
