Having a volume fracturing fracture plugging agent plugging construction method

2014 
The present invention discloses a volume of plugging agent plugging cracks fracturing construction method, the plugging agent by weight percent of the components of the composition: 40 to 60% of liquid rubber, 20 to 30% of the solvent, nanoparticles ~ 5 15%, the expandable resin particles 5 to 15%, 1-3% crosslinker, and initiator 0.1% to 1% fiber agent, 0.01 to 0.2%. Construction: 1) Preparation of plugging agent; 2) to 100 ~ 300L / min displacement of the blocking agent into the formation; 3) and the implant isolation slug breaker to the formation; 4) replacement of water, and the construction of the discharge to increase an amount of 500 ~ 700L / min, off 24 hours after the end of the wellhead. This convenient method of construction, due to the reduced volume of the network of fractures lead to fracturing plugging agent dosage Japan glycidyl disadvantage aging failure blocking agent, expanding the temperature range of reservoir applications shutoff prolonged production well water shutoff period, to reduce the moisture content of the volume of the production well fracturing later, can be improved reservoir recovery.
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