FIELD: oil and gaseous holes drilling. SUBSTANCE: invention relates to the hole shaft washing out. Method of preparing a drilling solution involves mixing clay powder with water containing sodium chloride NaCl being firstly water is treated by current. Treatment by current is carried out in the process of catholite synthesis at current voltage 16 V, not above, current power 7-14 A and concentration of NaCl 15-20% being synthesis of catholite is performed in cathode chamber of flow diaphragm electrochemical reactor. EFFECT: improved method of preparing. 2 cl, 1 tbl
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Authors
Dates
2002-07-20—Published
2000-12-04—Filed