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Non-Magnetic Drill Collar

Product Detail


    Non-Magnetic Drill Collar

    Technical Features

    l   Non-magnetic drill collars are made from non-magnetic steel bars with low-strength by combining a proprietary chemical analysis and a rotary hammer forging process with low magnetic permeability excellent machine ability. It will not interfere with the specialized directional equipment and will enhance the performance of the drilling operation.

    l   Non-mag drill collars function as housing or the MWD tools, while at the same time provide the weight for drillstring. Non-mag drill collars are suitable for all types of drilling including straight and directional applications.

    l   Each drill collar is fully inspected by internal inspection dept. All data obtained are record the inspection certificate furnished with each drill collar. API monogram, serial number, OD,ID, type and size of connections are stamped on recessed mill flats.

    l   We can provide three type of non-magnetic drill collar according to the customers’ order; include slick, spiral, and flex non-mag drill collar.

    Slick Non-mag Drill Collar

    Non-mag drill collar provide the required weight on bite, and will not interfere with the direction drilling ability.

    Spiral Non-mag Drill Collar

    Non-mag drill collar is designed to allow greater flow area for drilling fluids, while providing the benefits of non-mag steel for complex drilling programs.

    Flex Non-mag Drill Collar

    Flex non-mag drill collar is thinner and more flexible than standard drill collar. Their ability to make short radius turns, bend for high build angles, and horizontal applications, manufactured with non-mag steel, this drill collar is well suited for housing MWD equipment.


Shaanxi BRJ Petroleum Machinery Equipment Co.,Ltd
Add: Room 2-1014,3rd building,Deyi international center,No.6 Changqing 2nd road,
Economic and technological development zone,Xi'an,china
Tel/Fax: 0086-29-89612241   Email: