FIELD: construction of wells, casing cementing job, in particular, fixing of oil, gas and water wells. SUBSTANCE: cement slurry is prepared and mixed. Cement slurry passed through stage of maximum shrinkage deformation is pumped into well with uninterrupted mixing. Cement slurry is forced into well. It is distributed behind casing under dynamic conditions. Time period from start of preparation of used cement slurry to its distribution behind casing is under 1.5 h and not more than time of its solidification. EFFECT: improved quality of cementing job thanks to exclusion of shrinkage deformations of solidifying cement slurry in well. 1 tbl
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Authors
Dates
2003-04-27—Published
2001-06-18—Filed