Scratchers remove excessive wall cake and improve the cement bond between the casing and porous formations while reinforcing the cement column. Their hinged design makes them easy to install. For running in the hole, a series of scratchers is mounted on the casing string. The inclined external bristles abrade the wellbore during running and reciprocation. The
scratchers feature large fluid-bypass slots and coiled bristles for bending durability.
We have successively established long-term strategic coope...
Puyang Zhongshi Group Co., Ltd.
our products are exported to Southeast Asia, Northern Eu...
