FIELD: well drilling engineering.
SUBSTANCE: invention relates to lining pf oil, gas, and hydrothermal wells with temperature 300°C at bottom level, in particular to control properties of slag-based high-temperature grouting mortars by means of reagent composed of carboxymethylcellulose, 80-91%, and reagent "Krep", 9-20%. Reagent of invention may further contain 2-10% of phosphone complexone.
EFFECT: increased sedimentation stability even at high temperatures and pressures in well, increased plasticizing of mortar at low water/cement ratios, and reduced contraction effect.
2 cl, 1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| BASE OF WEIGHTED PLUGGING MORTAR | 2001 |
|
RU2194844C2 |
| BASE OF CURABLE GROUTING MORTAR | 2011 |
|
RU2468187C1 |
| COMPLEX ADDITION TO GROUTING MORTAR BASED ON PORTLAND CEMENT | 1992 |
|
RU2074310C1 |
| COMPLEX ADDITIVE TO GROUTING MORTAR BASED ON PORTLAND CEMENT | 1994 |
|
RU2078908C1 |
| SPREADING ADDITIVE FOR BACK-FILL MATERIAL | 2007 |
|
RU2342416C2 |
| UNIVERSAL BUFFER LIQUID | 2003 |
|
RU2253008C1 |
| BASE PLUGGING MATERIAL FOR CEMENTING WELLS IN RESERVOIR INTERVAL | 2023 |
|
RU2801331C1 |
| HIGH-DENSITY GROUTING MORTAR | 0 |
|
SU1657616A1 |
| DISPLACEMENT FLUID | 2001 |
|
RU2199648C2 |
| LIGHTWEIGHT PLUGGING MATERIAL | 2013 |
|
RU2555165C2 |
