In directional and horizontal drilling, protecting the integrity of sensitive MWD and LWD survey data is paramount. Our API 7-1 certified Non-Magnetic Products are engineered from high-purity, chrome-manganese austenitic alloy steels, providing a magnetic-free environment for precise wellbore positioning. Combining ultra-low magnetic permeability with superior mechanical strength, our non-magnetic drill collars, stabilizers, and subs are designed to withstand high-torque environments while offering exceptional resistance to stress corrosion cracking (SCC).
The advantages of ELITE’s non-magnetic products
High Strength with Low Magnetic Permeability
Materials such as NMSS, Monel, and Inconel provide both mechanical strength and magnetic neutrality, enabling use in high-pressure and high-temperature wells.
Enhanced Corrosion and Wear Resistance
Non-magnetic alloys offer superior resistance to H₂S, CO₂, chloride environments, and abrasive drilling fluids, extending tool life in harsh conditions.
Our NMDCs maintain a relative magnetic permeability ($\mu_r$) of $\le 1.01$. We also ensure the magnetic field gradient ($\Delta B$) is strictly controlled throughout the length of the tool to prevent any local hotspots that could distort survey readings.
P550 offers higher strength and corrosion resistance, making it suitable for deepwater and HPHT wells, while P530 is commonly used in standard directional drilling.
Yes. Every joint is subjected to a full-length magnetic inspection using a high-sensitivity magnetometer to ensure the absence of magnetic inclusions or "hotspots" caused by improper handling or manufacturing.
We utilize specialized alloy chemistry (high Chromium and Nitrogen content) and a proprietary "shot peening" or "ID compressive stress" treatment. This creates a compressive layer on the inner diameter (ID) of the collar, where SCC typically initiates, significantly extending the tool's lifespan in harsh mud conditions.
