DEVELOPMENT AND APPLICATION OF A NEW HEAVY LOAD HYDRAULIC LINER HANGER

Liner hanger is a critical technology in liner cementing.But almost all of large size liner hangers used in china are from abroad.A new SSX-A ?3397mm×?244.5mm liner hanger with two cones and two cylinders has been developed.The hydraulic-set hanger can support very heavy loads,which rated load is 180t.The slip and cone design provides maximum bypass area.The packing system can ensure a reliable two-way seal between setting tool and hanger body,which has a sealing capacity of 25MPa.The setting tool can be easily released because of its free point design.This paper introduced the configuration character,performance parameter and test results of the SSX-A hydraulic liner hanger.Two case histories in CB32-2C Well and CB32A-4 Well in Shengli Oilfield were presented.