Date: 30 Jun 2009
  This packer is a self-sealing packer, which mainly relies on the interference contact of the cup and the casing to pack off the annulus space between the tubing and the casing. It is provided with simple structures, convenient and safe operation performance etc. It is able to bear a certain working pressure difference, and so it is a new type of economic subsurface tool. It can constitute the leak proof tubing associated with the leak proof non-return valve, and the under balanced tubing associated with the under balanced non-return valve. These two tubing re all set under the pump, and can be widely used in down hole operations, such as oil recovery, water injection, acid washing, porthole, slurry squeezing, oil-well testing etc.
Contact information:
Zhejiang Weiqixin Petroleum Machinery Co. Ltd
No.98 Shuanggang Road Yuhuan County, Zhejiang[317600]
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