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Non Mag Drill Collar - China

price: contact company for price

TIANHE 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.

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

Each drill collar is fully inspected by internal inspection dept. All data obtained are recorded on 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.

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

TIANHE Slick Non-Mag Drill Collar provide the required weight on bit, and will not interfere with the directional drilling ability.

Spiral Non-Mag Drill Collar

TIANHE Spiral 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

TIANHE 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 pass through severe doglegs makes them ideal for use in directional and horizontal applications. Manufactured with non-mag steel, this drill collar is well suited for housing MWD equipment.


Company Contact:


  • Phone: +86.182.216.530.83

  • Address: No.2999 ,XinYang Road,FengXian District, Shanghai, China

  • Email: Email


Published date: August 2, 2013 -

  • Business Description: Tianhe Oil Group,originally established in 1973, is a comprehensive

    enterprise of equipment manufacturing and oilfield service providing.

    We're specialized in innovating, manufacturing and sales of drill and

    petroleum extraction tools, equipments and oil field services.

    Tianhe Oil Group is a council member of CPEIA (China Petroleum and Equipment Industry Association), having been confered as a national Hi Tech company. Tianhe is a well known Chinese trademark. We've been certified in compliance with ISO, API, NS 1, and HSE management system,we have now high end machining centers like CNC turning centers from Mazak,all in one MILLTURN center from WFL Millturn Technologies GmbH&Co.KG as well as a wide range of other sophisticated tooling equipments.

    A strong domestic sales network has been established,covering all oilfields of CNPC, SINOPEC and CNOOC. Specifically today, we're exporting to 45 countries around the globe, overseas trading amount has topped over 80% of our business.

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