Impulse type sand fracturing system and control method thereof
A kind of sand fracturing and pulse type technology, which is applied in the direction of earthwork drilling, production fluid, wellbore/well components, etc., can solve the problems of effective switching limitation of sand ratio, reduction of equipment service life, performance condition limitation, etc., to achieve reduction The probability of mechanical failure and the degree of mechanical wear, the effect of improving the conductivity and ensuring accuracy
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[0038] Such as Figure 1~5 As shown, the present invention is a pulse sand fracturing system, which includes a sand bucket 20, a fracturing fluid tank 21, a sand fluid mixing cylinder 17 and a fracturing pump unit 15 arranged on a sand mixing vehicle. Wherein: the sand bucket 20 is equipped with proppant a, and the fracturing fluid tank 21 is equipped with fracturing fluid b; the sand bucket 20 and the fracturing fluid tank 21 are respectively connected to the sand fluid mixing cylinder 17 through pipelines, and the sand fluid mixing cylinder 17 and The fracturing fluid tanks 21 are respectively connected to the fracturing pump unit 15 through pipelines, and the fracturing pump unit 15 alternately pumps the pure fracturing fluid b and the sand-carrying fluid c to the formation m, forming a pulsed sand-adding fracturing system. The innovation of the present invention is:
[0039] - A proppant circulation loop is connected in parallel to the pipeline between the sand bucket 20 ...
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