The separated layer polymer injection pipe string consists of well-flushing packer, down-hole flow distributor and bottom ball.
分层注聚管柱主要由可洗井封隔器、配注器及底球组成。
2
The invention discloses a manufacture technology of a bonding toothed plate of a packer, mainly containing the following step of raising a body with a bottom designed as an inclined surface.