FIELD: oil and gas production.
SUBSTANCE: grouting mortar for supporting well within producing formation zone in case of performing major repairs or killing well contains cement and modifying additive in amount 0.01-0.04% of the wt of cement, said modifying additive being a stabilized postfermentaion suspension Saraksan containing at least 1.5% xanthane or Saraksan powder, which can also be used in the form of suspension.
EFFECT: reduced water loss and increased bend and compaction strength.
2 cl, 1 tbl
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