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Api 7 1 Non Magnetic Drill Collar - China
price: contact company for price
API 7-1 Non-Magnetic Drill Collar for MWD/LWD | Longway
Type C non-magnetic drill collars are manufactured from N1310 low-carbon alloy steel.
Essential for directional drilling operations, allowing Measurement While Drilling (MWD) tools to accurately transmit survey data without magnetic interference.
Manufactured to API 7-1 standards.
Available in outer diameters from 3-1/8″ to 11″.
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Product Description
Non-magnetic drill collars are specialized drill collars made from N1310 low-carbon alloy steel.
The non-magnetic properties are essential for directional drilling operations where magnetic survey tools (MWD) are used.
Conventional 4145H steel collars are magnetic and can affect the magnetic environment used by MWD and LWD tools.
An NMDC drill collar provides the required structural section while reducing this source of interference.
The structure is similar to standard drill collars but manufactured from specially formulated non-magnetic alloy steel.
Strict chemical composition control ensures consistent non-magnetic properties.
N1310 NMDC Drill Collar for MWD and LWD Assemblies
Longway supplies N1310 non-magnetic drill collars for directional and horizontal drilling assemblies using MWD or LWD instruments.
The low-permeability material helps minimize magnetic interference around survey tools while providing the weight and stiffness required in the lower BHA.
Company Contact:
- Posted By: Hebei Longway Petroleum Equipment Co., Ltd.
- Phone: 19930620733
- Address: Beikou Economic Development Zone, Yingli Town, Jinzhou City, Shijiazhuang, Hebei Province, China, Shijiazhuang , hebei , China
- Email:
- Website: https://www.longwaydp.com/
Published date: November 10, 2026
- Business Description: As a professional oil drilling tools manufacturer,we can supply high quality drill pipe with competitive price and perfect after sale service.
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