Wireline Core Barrel Core Lifter Case Stop Ring BQ NQ HQ PQ NQ3 HQ3
1. available in all standard drilling sizes.
2. hardened alloy.
SIZE: BQ NQ HQ PQ NQ3 HQ3 PQ3
TYPE: standard or diamond coated
SHAPE: slotted and fluted
ADVANTAGES: strong grip of rock core and long life span
Drill soft to hard rock, widely used in all kinds of drillings for
prospecting, water and electricity building and construction
industry of road, railway, bridge and building taking out core to
examine stake, etc.
1. Available in all standard drilling sizes
2. Hardened alloy as raw material,it can serve in a long lifespan
3. Core lifters are divided into slotted and fluted .They have the
advantages of good springness and
4. Our company produces all kinds of core lifters ,which have the
merits of good springness and long
life. The core lifter pedestal experiences salt bath quenching
which makes it good stability.
The drilling fluid circuit operates withinthe available annular
areaprovided.More specifically, after
travelling through the drill rods, the fluid enters the core
There it is channelled between the inner and outer tubes, exiting
via the throat of the diamond bit, and
back out between the outer tube and bore hole wall to the collar .
At the bit end of the inner tube, core lifter case adjustment and
core lifter selection are of great
importance. The core lifter case needs to be placed close enough to
the throat of the bit to allow for
efficient core breakage, butundesirable increase in fluid
pressureand/or sample washing from the
By design, the tapered core lifter slides along the inside of the
core lifter case, wedging and securing
itself onto the core during core recovery and breaking.
NQ Core Lifter
NQ Core Lifter Case
HQ Core Lifter
HQ Core Lifter Case
HQ3 Core Lifter
HQ3 Core Lifter Case
PQ Core Lifter
PQ Core Lifter Case
PQ3 Core Lifter
PQ3 Core Lifter Case