Model Set : NQ HQ BQ

LOCKING COUPLING AND ADAPTOR COUPLING SET

Manufacturer and Supplier of Locking Coupling and Adaptor Coupling in Kolkata

We offer a selection of locking couplings, the part of the core barrel that is found on the upper part of the outer tube. The locking coupling adapts the core barrel outer tube to the drill rods and locks the head assembly to the outer tube so that the head assembly turns with the outer tube when drilling. It also stabilizes the upper section of the core barrel, minimizing hole deviation and some types can protect the hole diameter if the remaining shell loses its gauge.

Knowledge of your ground conditions will help determine which type of locking coupling will provide the best results.

Conventional

This conventional coupling comes in full hole size and comes equipped with tungsten carbide pads for better stabilization. A good choice for ground where not much deviation is expected.

Hexagonal

Also known as a full-hole coupling, the hexagonal coupling has a circumference that is made of 4-6 sections providing good stabilization. The hexagonal locking coupling is used in conjunction with a full hole outer tube to control bore hole deviation by stabilizing the core barrel.

Heavy duty

This locking coupling comes with a more resistant matrix pad on the body that is embedded with tungsten carbide grit as well as tungsten carbide pads and provides even better stabilization of the core barrel.

Wireline double tube core barrels are primarily used in deep coring. With an overshot device, they eliminate the need to couple and uncouple the rod string each time the core is retrieved.

Wireline triple tube core barrels are generally required in broken, fractured formations. They incorporate a third, split inner tube on base of wireline double tube core barrel. This can be pumped out of the inner tube after retrieval, allowing the core to be examined in its in-state.

Manufacturer and Supplier of Locking Coupling and Adaptor Coupling in Kolkata

Specifications

1. Expert Manufacturer of Locking Coupling
2. BQ, NQ, HQ, RQ, PQ,
3. Favourable price and good quality
Locking coupling is set with natural or synthetic diamond, and it is used to couple the drill bit with the core barrel. Its main function is to ream the hole to the correct constant specific diameter which ensures adequate clearance for the core barrel and sufficient clearance for the new bit which replaces an old one. It also acts as a stabilizer for drill bits.