FIELD: oil and gas production.
SUBSTANCE: invention relates to solid phase-free well killing fluids that can be used when performing repair operations in wells with formation pressure equal or inferior to hydrostatic pressure. Fluid according to invention contains, wt %: diethylene glycol 30-40, polysaccharide polymer Sulfacell 0.5-1.0, condensed sulfite-alcohol distillery dregs 0.5-1.0, cationic coagulant MKGTM 0.8-1.5, Morpen 0.5-1.0, and water - the balance.
EFFECT: increased well killing efficiency at simultaneously increased frost resistance, preserved natural permeability of productive formation after unblocking, and enlarged assortment of inhibitory substances.
1 tbl, 6 ex
| Title | Year | Author | Number |
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