FIELD: drilling fluids. SUBSTANCE: invention provides a method of preparing drilling compositions in which, as functional additive, apatite concentrate with at least 36 wt % phosphorus oxide and particle size ranged from 100 to 5 mcm is utilized with specified fraction distribution. EFFECT: reduced permeability of filtration crest of drilling compositions and increased their coagulation stability. 1 tbl
| Title | Year | Author | Number |
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