FIELD: oil and gas industry.
SUBSTANCE: invention can be used during construction of wells in salt deposits within range of temperature from 60°C up to 150°C. The grouting mortar contains (wt %): oil-well portland cement 60-70; silicon oxide 30-40; ferro-chrome lignosulphonate 1.5-2; glycerine or triethylene glycol or 10% solution of epoxide resin ED-20 in triethylene glycol 10-20; saturated water solution of NaCl 40-45.
EFFECT: easy preparation, preservation of salt deposits stability at contact, formation of solid cement stone in conditions of high temperature while used as dispersion medium for synthetic hydraulic liquid.
4 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| POLYMER-CONTAINING REAGENT FOR CEMENT-POLYMER SOLUTION | 2017 |
|
RU2700125C2 |
| GROUTING MIXTURE | 2020 |
|
RU2726695C1 |
| GROUTING COMPOSITION | 2020 |
|
RU2761396C1 |
| GAS-BLOCKING PLUGGING MATERIAL FOR CEMENTING HORIZONTAL WELLS WITH SMALL ANNULAR GAPS | 2014 |
|
RU2553807C1 |
| LIGHT-WEIGHT GASPROOF PLUGGING MATERIAL FOR CEMENTING OVER-PRODUCING INTERVALS (VERSIONS) | 2012 |
|
RU2497861C1 |
| BASE PLUGGING MATERIAL FOR CEMENTING WELLS IN RESERVOIR INTERVAL | 2023 |
|
RU2801331C1 |
| METHOD OF PREPARATION OF LIGHT GROUTING MORTAR OF DENSITY 1450-1500 kg/m | 2008 |
|
RU2385894C1 |
| METHOD FOR PREVENTING OCCURRENCE OF INTER-CASING AND INTER-LAYER FLOWS IN WELL | 2023 |
|
RU2808074C1 |
| REINFORCING COMPOSITION FOR CEMENT MORTARS AND CONCRETES | 2022 |
|
RU2781295C1 |
| CEMENTING SLURRY | 2010 |
|
RU2441897C1 |
