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Leakage plugging material test
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Experimental device for plugging materials (DL-2)
The device can simulate and measure the leakage of various fractured formations under different pressures, as well as the permeability of various permeable formations and the penetration depth of materials, so as to evaluate the plugging effect of various plugging materials.
Drilling fluid plugging performance evaluation instrument (XS-PPA)
Physical plugging effect of drilling fluid: under certain pressure, when drilling fluid permeates into the borehole wall, a part of solid phase substances enter the pores or cracks of the borehole wall to deposit and form internal filter cake, thus reducing the permeability near the borehole wall;