PEAT ALKALINE DRILLING MUD FOR OPENING PRODUCING RESERVOIR Russian patent published in 2016 - IPC C09K8/10 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil and gas industry, in particular for completion of formations-reservoirs containing oil, gas or condensate. Peat alkaline drilling mud for drilling producing reservoirs of oil and gas wells during drilling contains,%: peat 5-7; potassium-containing alkaline modifier 0.5-1.5, potassium chloride 1-3, water loss reducer and flocculant carboxymethyl cellulose 0.8-1.5; antifoaming agent MAS-200M; weighing agent IKKARB-75/150 5-30; lubricating additive IKLUB 1-10; water - balance.

EFFECT: high efficiency of drilling producing reservoirs in drilling oil and gas wells, maintaining filtration-capacitance properties of rocks.

1 cl, 2 tbl