1results about How to "Reliable suspension" patented technology

A kind of sealing patching tool, it includes patching pipe assembly, expanding assembly and flow distributor, the patching pipe assembly includes patching pipe and sealing hanger, the patching pipe is matched with casing damage well casing specification Steel pipe, length is 8m-12m, both ends are all turned to sealing thread capable of being connected with sealing hanger;The sealing hanger is composed of hanger pipe, rubber sealing ring, metal sealing ring, the hanger pipe is a section of reducing steel pipe, the diameter of one end with sealing thread is same with the diameter of patching pipe, the diameter of one end with rubber sealing ring and metal sealing ring is installed is less than the diameter of patching pipe, two sets of sealing hangers are provided in each set of tool, are installed in the both ends of patching pipe by sealing thread respectively, the utility model sealing pressure is high, hanging is reliable, patching pipe does not produce flexure, patching section drift diameter is big, secondary extraction is easy.