| 摘要 |
FIELD: oil and gas industry.SUBSTANCE: grouting mortar includes the following component ratio, wt %: grouting Portland cement 58.46-60.64, microsilica MK-85 19-1.24, CaClsolution 32.81-34.04, natrosol 250 EXR 2.62-2.72, Okzil-Sm 1.36-4.92.EFFECT: improving insulating capability of grouting mortar due to reduced water loss; strengthening gas locking properties provided with intensive structure formation of the mortar after the solution is arranged at the interval of productive formations; excluding absorptions during cementing of strings; formation of non-permeable stone with increased adhesion strength.1 ex, 1 tbl |
