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| model qht-a ball-activated sleeve |
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application
a certain number of sliding sleeves are connected on the multi-stage fracturing pipe string. fracturing balls of different diameters are released one by one to open each corresponding sliding sleeve and fracture the reservoir stage by stage.
features
1. low density composite / metal fracturing ball can hold 70 mpa pressure.
2. specially treated ball seat allows good erosion resistance.
3. the ports are designed with large flow-by area, leaving no choking effect.
4. no shoulder on the ball seat, preventing the ball from being stuck. |
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