Two ball seat fracturing sliding sleeves

The utility model relates to an oilfield fracturing sliding sleeve technical field is a two ball seat fracturing sliding sleeves, and it includes top connection, lower clutch, an inner sliding sleeve and the 2nd inner sliding sleeve, and the top connection is in the same place with lower clutch top -down is sealed fixed, and an inner sliding sleeve seals up in the top connection, and an inner sliding sleeve is in the same place with top connection fixed mounting through first shear pin. The utility model has the advantages of reasonable and compact structure, convenient to use, it is in the use, and the setting of two ball seats can increase substantially the fracturing ball and normally bump the success rate of pressing trompil to safety factor than the fracturing sliding sleeve of traditional single ball seat wants high, thereby has improved the utility model discloses a reliability is favorable to whole fracturing to reform transform going on of construction operation. 本实用新型涉及油田压裂滑套技术领域，是种双球座压裂滑套，其包括上接头、下接