توضیحات
This well stimulation method is done in several stages, in the first stage, the entire well cavity is filled with water (brine). Then the IR-1 chemical substance is pumped by Coil tubing to the front of the desired area, and then the IR-2 chemical substance is pumped separately by the Coil just above the IR-1 substance. Time is given to the well until the IR-1 and IR-2 substances are combined inside the well and a chemical reaction takes place, which leads to the formation of acidic compounds and some gases including HCL, HNO3, H, H2, CO, NH3, NO, N2O3, It becomes N2O5, NO2, BO. The products of this reaction begin to penetrate and advance in the area around the well, and considering that in addition to acid, gas is released during the said reaction, the mobility and pressure of the movement of acid in the pores around the well increases. On the other hand, the reaction of IR-1 and IR-2 is exothermic, which increases the temperature of the well cavity in the range of 250 to 300 degrees Celsius and the temperature of the area around the well up to 500 degrees Celsius. Therefore, the acid and the resulting compounds at high temperature cause the dissolution of the pollution in the area around the well and the heavy oil compounds and cause the expansion of the fine cracks in the formation and increase the conductivity of the formation.
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