Conventional drill rod

1. It is made of steel with excellent purity, metallurgical quality, organization uniformity, impact toughness and fatigue resistance;

2. Optimized Miu and Miu-R designs are adopted to improve the fatigue resistance of the upset end of the drill rod in combination with special and stable upset process;

3. The whole-process information management is implemented for the manufacturing process, inspection, test, acceptance and product traceability from order receiving to product delivery via ERP system;

4. 100% FLUT (longitudinal, transverse and ultrasonic thickness measurement) for pipe body + 100% MPI (or UT) for pipe end, 100% UT+100% MPI for drill rod joint and 100% UT+100% MPI for welds;

5. Integration: Including manufacturing of drill rod joint, drill rod upset, heat treatment and drill rod welding, as well as weld application of welding wires on hardbanding, and spraying of inner coating.

Special Thread of Drill Rod

1. Improve the torsional strength and make-up torque of the drill rod joint in accordance with the requirements of extended reach well, horizontal well and extra-deep well;

2. Increase the inner diameter of the drill rod joint, and improve the hydraulic efficiency and drilling efficiency in accordance with the requirements of extended reach well, horizontal well and extra-deep well;

3. Reduce the outer diameter of the drill rod joint in accordance with the requirements of slim hole drilling and workover, and improve the fishing capacity;

4. Improve the stress distribution, lower the stress concentration factor and improve the fatigue resistance of the drill rod joint;

XT-series Joints

1. Compared with API joints, XT-series joints have the following features: Improved dual-shoulder structure, improved design of thread base arc, and optimized pitch and taper;

2. Ultra-high torsional resistance, where the torsional resistance is increased by more than 70% compared with API joints of the same specification;

3. High fatigue resistance and durability;

4. Further reduce the outer diameter of the joint under the premise of ensuring torsional resistance; further increase the inner diameter of the joint;

5. Mitigate the erosion corrosion of the inner wall of the joint and improve the hydraulic efficiency.

Internal Flush Drill Rod

1. Reduced pressure loss and increased hydraulic efficiency is the key to improving the drilling speed. Taihe increases the inner diameter of the upset area of inner flush drill rod body with Taihe special external upset technology, and ensures moderately large water hole diameter with the special threaded connections. The inner diameter of the upset end and inner diameter of the joint are not much different from the inner diameter of the pipe body;

2. The special external upset technology effectively reduces the stress concentration of the upset transition consuming zone, lowers the possibility of fatigue failure, and increases the fatigue resistance of the drill rod;

3. The inner diameter of the joint is close to the inner diameter of the pipe body;

4. The pressure loss is reduced by 20%-50%, and hydraulic efficiency and drilling speed are improved;

5. The inner flush structure is suitable for continuous coring and wire-line coring.

Heavy Weight drill rod

1. The integral heavy weight drill rod and welded heavy weight drill rod are manufactured by quenched-tempered heat treatment process to ensure that the heavy weight drill rod body has better impact toughness;

2. The whole-process information management is implemented for the manufacturing process, inspection, test, acceptance and product traceability from order receiving to product delivery via ERP system;

3. 100% UT (longitudinal and transverse) is performed for the pipe body, and 100% UT + 100% MPI are performed for the joint and weld of heavy weight drill rod;

4. Options to improve the functional performance of heavy weight drill rod include: Increased clamp length of heavy weight drill rod joints, unclamping on threads, cold rolling of threads, upsetting of central spiral groove, internal coating, and hardbanding.

Drill Collar

1. High Torsional Resistance: 20%-50% higher torsional strength than API drill collars of the same specification;

2. Under the premise of ensuring torsional resistance: Increase the inner diameter of the drill collar; reduce the outer diameter of the drill collar;

3. High fatigue resistance, and prolonged service life;

4. Improve hydraulic efficiency and reduce erosion.