NW casing is intended for single use or situations where the NW casing is left in the hole. The NWcasing is made from standard tubing and with the NW casing thread form. The NW casing thread is a straight thread (4 threads per inch). This NW casing is universal in design and can be used in any drilling conditions where threaded NW casing is required to be left in the ground.

NW casing tubing

●Parallel wall tubing compatible with NQ wireline coring system in hole tools

●Tubing properties meet the industry standard

NW casing tubing thread 

●Longer threads (4 threads per inch) provide strength in driving and jarring

●Standard NW casing thread provides sufficient strength for most drilling conditions

NW casing tubing heat treatment(Option)

●Provides higher material strength

●Whole casing Heat treated significantly increases casing life

NW casing tubing case hardening(Option)

●NW casing Pin thread crest is hardened to nominal 50-55 HRC to eliminate damaging’adhesion’ wear

●Eliminates the transfer of wear material back and forth as seen between threads of equal

hardness, leading to large scale galling and joint seizing

NW casing overview

NW casing thread profile

NW wireline casing parameters

NW wireline casing bundle specifications

NW wireline casing container shipments