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Study on Explosion Expander for Repairing Oil Well

WANG Bo,AN Li-chang(Liaoning Technology University,Fuxin 123000,China)  
The explosion expander for repairing oil well casing is a new one of many casing repairing technique.The radical force of explosion expander makes the screened pipe firmly fixed at the disrepair point of casing,so as to seal and repair the disrepair casing.The research development and application of this technique will increase the productivity and decrease the cost and protects the environment.
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