Abstract: When there is water produced or casing leakage occurred in Wenliu oilfield.4 - inch casing has been usually adopted in cementing repair,which is characterized by the problems such as long cycles,high cost,poor cementing quality and etc.,while the ZP - 08 expansion tube repairing technique with low - alloy can better solve the problems. The good application of 10 wells in 2009 - 2010 indicated the success rate is 100%.