GROUTING MORTAR FOR SUPPORTING WELL WITHIN PRODUCING FORMATION ZONE

摘要

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