FIELD: oil and gas industry.
SUBSTANCE: two reagents are pumped into the oil production well. In this case, the granular magnesium is used as reagents, mixed on the dry crude oil in the ratio 50 kg of Mg per 1m3 of dry crude oil, and 24% hydrochloric acid solution. At that in the beginning the granulated magnesium is pumped into the oil production well, which is mixed on the dry crude oil. After that the intermediate shock reducer is created, pumping 0.3 m3 of commercial oil into the oil production well. Then the hydrochloric acid solution is pumped through the intermediate shock reducer at the pressure of 20-70 atm. In this case, the molar ratio of magnesium to hydrochloric acid is in the range from 1:2.25 to 1:2.70.
EFFECT: efficiency increase of the sand recovery level reduction.
1 ex, 4 dwg
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