Type LL reverse circulation junk basket is used to catch all kinds
of small junk objects such as cones, cutters, hand tools from
downhole. During drilling operation, it produces a local reverse
circulation of fluid at well core so as to effect a complete
recovery of junk in the junk basket. It makes work much more easier
especially adopted PDC drill bit. In order to keep drill bit
maintaining normal work，it must be used to clean the bottom hole
before drilling. So it is the necessary fishing tool in geological
exploration and oilfield drilling, otherwise the tool can also be
used as a special coring tool.
LL Reverse circulation Junk Basket is simple in structure,
convenient operation, safe and reliable in use, high-efficiency
purification at the bottom hole of a well.