API Spec7 nmdc Non Magnetic Drill Collar for for Oil Well Drilling

Product Description

The Non-magnetic drill collars are made fom low carbon stainless steel and conform to the requirements of API Spec.7 and SY/T***4. All threads are phosphated copperized or cold worked. All Connecions are equipped with pressed seel thread protectors.All threads are machined with CNC Lathes-Double-shouldered and special threads.



Jiyuan City East Heavy Industry Co., Ltd is a supplier of drilling equipment for oil and gas industry.We are first-class supplier in vendor list of CNPC,SINOPEC,CNOOC,and so on. East Heavy Industry is committed to developing, manufacturing and supplying oilfield equipment, and has established a complete quality control system.

All products are produced in accordance with industry standards, national standards and API standards. Our main products are drill collars, spiral drill collars, Non-magnetic drill collars, integral heavy weight drill pipes, stabilizers, Non-magnetic stabilizers, lifting subs, kelly，iron casting pipe mould and so on.

We sincerely welcome customers and friends domestic and abroad come to create a prosperous future with us.

We will be your Best Partner In Well Drilling Equipment！