Wireline series Core Barrel stop ring BQ NQ HQ PQ NQ3 HQ3
The drilling fluid circuit operates withinthe available annular areaprovided.More specifically, after travelling through the drill rods, the fluid enters the core barrel.Get more news about Wireline Stop Ring,you can vist our website!
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 drilling fluid.
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.
PEERCHEER offers NQ3 HQ3 PQ3 NWL-3 HWL-3 PWL-3 stop ring for use with NQ3 HQ3 PQ3 core barrels. The NQ3 HQ3 PQ3 stop ring is a hardened steel snap ring designed to seat into a mating groove, and retain the core lifter in the core lifter case. Q series stop rings are available for application in standard DCDMA N H P size.
PEERCHEER’S core lifters are are made of high-quality alloy steel that is specially heat treated to increase strength, toughness, and wear life.