Ground pumping and mining coal seam gas well reformation method based on recurrence frequency impact waves
A coalbed methane well, repetition frequency technology, applied in mining equipment, earthwork drilling, gas discharge, etc., can solve the problems of coalbed methane wells without gas production, no effect, coal seam damage, etc., to achieve the ability to inhibit resorption, accelerate desorption, release The effect of coal seam clogging
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[0033] Before the operation, it is necessary to first collect the relevant data of the coalbed methane wells to be operated, and analyze the reasons for the reduction of production according to the collected data such as coal rock properties, coalbed physical properties, well formation methods, production and transformation history, and block production status; The circuit parameters, working voltage of the electric pulse device, the amplitude, pulse width and repetition frequency of the shock wave are designed, and the underground equipment of the electric pulse device is used for the repetition frequency operation of the coal seam.
[0034] refer to figure 1 , the operation flow of the present invention is as follows
[0035] Step 1: Trip out all pipe strings downhole.
[0036] Before the operation, the wellbore including the water pump, the water pipe and the water rod are all pulled out, so that the downhole equipment of the electric pulse device can be operated in the we...
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