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Home >> Engineering >> Description
Bridge plug multistage fracturing technology

Technical introduction:
In the horizontal well section, the perforating gun and the bridge plug are transported to the bridge plug setting position by cable and liquid pumping, and the cable is ignited to seal the bridge plug, and the bridge plug and the perforating gun are separated. The lifting cable drags the perforating gun to a predetermined depth to be stepwisely positioned, and sequentially fires to complete the multi-cluster perforating. Hydraulic fracturing after the cable is taken out. This can be done to complete the segmental perforation and fracturing of the entire horizontal well.

Technical features:
1. Speed drill composite bridge plug:
    1) The main material is high-strength engineering plastic;
    2) The upper anchoring mechanism adopts a panel structure, and the material is ceramic; 
    3) The lower anchoring mechanism adopts a tooth-like structure, and the material is an iron-based powder composite material. Withstand pressure difference of 10000psi, temperature resistance 350F, drilling plug speed 10-20min/piece
2. Electronic selection:
    1) The test panel can detect the switch state on the ground to ensure that the gun string connection is normal before entering the well;
    2) The short circuit, open circuit and leakage of the gun string can be detected at any time during the process of entering, and the problem can be repaired in time;
    3) At the moment of ignition, the ground system gives an IV curve that clearly indicates whether the detonator is detonated;
    4) In case of unexpected situation, you can choose to blast the gun.


 
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