FIELD: soil or rock drilling; mining.
SUBSTANCE: present invention relates to a method for cementing an underground well comprising a casing string and a borehole surface, comprising steps of covering a borehole surface and an outer surface of the casing with a water-immiscible fluid, obtaining a composition containing water, inorganic cement and one or more particulate materials which swell when in contact with a water-immiscible fluid, wherein the underground well is drilled using a water-based drilling mud. Invention also relates to embodiments of cementing method. Invention is developed in dependent claims.
EFFECT: technical result is high efficiency of the cementing process.
20 cl, 2 dwg, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITIONS AND METHODS OF WELL COMPLETION | 2015 |
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