“Nizhnekamskneftekhim” INC commercialized full capacity production of modified polyglycol reagent "Reagent-Glycol-1" for drilling fluids.
Adding it in clay solutions enables to considerably reduce surface tension at interface with crude oil to 4-10 mN/m, to enhance inhibiting and lubricating properties. With this reagent of 2% mass present in a starch-biopolymer drilling fluid system, clay dispersion and swelling are reduced.
These results have been confirmed by the Drilling Fluid Laboratory Analysis Reports of Oil Research Institute, city of Ufa , and of Well Construction Designer, city of Izhevsk .
A positive effect due to application of this reagent was obtained during the industrial test in "Bashneft" oil fields when drilling wells through intervals, abnormal of caving-in layers.
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