Український науково-дослідний інститут природних газів
Украинский научно-исследовательский институт природных газов
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Application filed by Український науково-дослідний інститут природних газів, Украинский научно-исследовательский институт природных газовfiledCriticalУкраїнський науково-дослідний інститут природних газів
Priority to UA3365630ApriorityCriticalpatent/UA16441A1/en
Publication of UA16441A1publicationCriticalpatent/UA16441A1/en
The invention relates to oil and gas well drilling, in particular to drilling fluids used for flushing out of well. Clayless drilling mud comprises polymeric flocculant of systemic action, hydrocarbon phase and inorganic water-soluble additives. In order to improve the quality of the drilling fluid it comprises in addition organic colloidal phase.