TIANHE non-magnetic drill collars are made from non-magneticsteel bars with low-strength by combining a proper chemical analysisand rotary hammer forging process with low magnetic permeabilityand excellent machinability. it will not interfere with the specializecdirectional equipment but rather will enhance the performance of thedrilling operation.
The non-magnetic drill collars function as a housing for the MWDtools, while at the same time provide the weight for drill string.TIANHE non-magnetic drill collars are suitable for all types of drillingincluding straight and directional applications.
Each drill collar is fully inspected by our internal inspectiondepartment. All data obtained are recorded on the inspectioncertificate furnished with each drill collar. API monogram, serianumber, OD, ID, type and size of connections are stamped on therecessed mill flats.
We manufacture three type of non-magnelic drill collars according tothe customers' order; include Slick, Spiral, and Flex non-Mag DrilCollars.
Slick Non-Mag Drill Collar
TIANHE Slick non-Mag Drill Collar provides 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 flowarea for drilling fluids, while providing the benefits of non-mag steel forcomplex drilling programs.
Flex Non-Mag Drill Collar
TIANHE Flex non-Mag Drill Collar is thinner and more flexible thanstandard drill collar. Their ability to make short radius turns, bendfor high build angles, and pass through severe doglegs makes themideal for use in directional and horizontal applications. Manufacturedwith non-mag steel, this drill collar is well suited for housing MWDequipment.
Tianhe Oil Group Huifeng Petroleum Equipment Co., Ltd is a modernized medium-scale enterprise specialized in production of oil and gas tools.
As an API-Certified established manufacturer and supplier of a comprehensive range of downhole equipment with related accessories, we are committed to providing the highest Quality products for the Petroleum and natural gas industry since 1973.
Tianhe Oil Group strongly believes and promotes Total Quality Management, implement the ISO quality management system and HSE management system and API Standard, which has been deeply implanted into every person's thought and carried out into every aspect of work.
Our manufacturing facilities are well equipped with four automated induction heat treatment lines and dozens of other types of heat treatment ovens and well furnaces to ensure full coverage of heat treatment requirements by different products to achieve the required mechanical properties.
In order to ensure the quality consistency and interchangeability of high precision components, Tianhe has introduced WFL 5-axis Linkage Turning & Milling Machining Center from Austria, Mazak's turn milling machining center from Japan and the Haas vertical machining center from USA. These processes are facilitated with precise quality inspection equipment such as the Brunker OES Metal Analyzers from Germany, Ultrasonic and Magnetic Powder Flaw Detector and high precision Hexagon Three Coordinate Measuring Machine and Farco Portable Three Coordinate Measuring Machine.
So far, Tianhe Oil Group has established strong business relationships with over 200 international oil & gas companies in supporting the top 50 oil producing countries.
We take pride in delivering superior performances and reliability. Our objective is to exceed your expectations, improve your economics and be an integral part of your strategies.
Audited Supplier 
Audited Supplier 
){kind=link}
){kind=link}