Enhanced Fatigue Resistance

Cold rolling on the thread roots of every connection is necessary to increase the connection’s ability to resist failure from cyclic stresses on the thread roots when stiffer heavy weight drill pipe undergoes repeated severe tensile and compressive stresses at drilling operation.

Cold rolling hardens the thread roots inducing compressive stress that minimise crack forming to increase fatigue resistance.

API Bore back on the box connection or stress relief groove on the pin connection can further enhanced fatigue resistance on conventional API connections.

 

Cold Rolling Hardens Thread Root Inducing
Compressive Stress that Minimise Crack
Forming To Increase Fatigue Resistance

 

High Performance Rotary Shoulder Connections

We offers its DS and HT series double shoulder connections which outperform conventional API connections to meet the needs of deep, extended and challenging wells with greater torsional capacities.

Increase Drill Pipe Life

Hardbanding on the tool joint or wear pad extends the service life of drill pipe. It can be applied in several configurations to suits clients requirements.

Hardbanding is applied under closely controlled conditions resulting in a uniform, low porosity, wear resistant surface.

We are authorised to apply market proven hardbanding products including ARNCO 100XT / 300XT, Tuboscope TCS8000 / TCSTI, Duraband NC, Tuffband NC and Castolin OTW 12.

Extra length tool joints are incorporated into heavy weight drill pipe to increase tong space to provide several recut to the connections.

Surface Protection

Phosphate coating are applied to all heavy weight drill pipe connections to improve anti galling and corrosion.

We can supply heavy weight drill pipe with any market available internal plastic coating. The coating forms a protective layer in the pipe ID to prevent corrosion and thus extend the life span of the pipe in the drilling environment.