FIELD: oil and gas production.
SUBSTANCE: plugging material contains cement, reinforcing fibre-polyacrylic or polypropylene or basalt fibre, polydiallyldimetylammonium chloride-VPK-402, hydroxyethyl cellulose, super plastifier CEMPLAST or C-3 or Melflux, anti-foaming agent POLYCEM DF, calcium chloride and water with the following component ratio, wt %: cement 65.0-69.0, said reinforcing fibre 0.08-0.33, hydroxyethyl cellulose 0.07-0.2, said super plastifier 0.08-0.33, said anti-foaming agent 0.08-0.13, calcium chloride 0.08-1.3, polydiallyldimetylammonium chloride-VPK-402 0.08-0.33, water the rest.
EFFECT: improvement of crash resistance, including conditions of hard dynamic influences.
1 ex, 2 tbl
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| OIL-WELL COMPOSITION FOR STEAM-INJECTION WELLS | 2007 |
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