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China, Chinese API 7-1 Non-Magnetic Drill Collar / Drill Collar / Oilfield Drill Collar / Non-Mag Collar / Drilling Tool Collar for Petroleum Drilling1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Products Details Supplier Manufacturer price list catalog
Drilling ToolsNon-Magnetic CollarDrill Collar
Goldenman Petroleum Equipment Co., Limited
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Product Description DRILL COLLAR 1. Material of API 7-1 Non-Magnetic Drill Collar Slick Drill Collar OD 79.4mm to 279.4mm: Choose from premium 4145H/4145H mod or advanced Non-magnetic options for exceptional performance.2. Standard: Conforming to internationally recognized API7-1 and NS-1 standards for top-notch quality.A. Slick Drill CollarNote: Drill collars are expertly crafted to impart significant weight to the drill bit, ensuring the drill pipe remains under tension. Notably, they alsomaintain the drill bit's central position and stabilize the hole trajectory due to their robust rigidity. Each drill collar is produced in strict adherence to API Spec7-1 andSY5411 standards, guaranteeing unmatched reliability.B. Spiral Drill CollarNote: Spiral drill collars are designed to minimize contact with the hole, effectively preventing bit sticking caused by differentialpressure. These collars are meticulously manufactured in accordance with API Spec7-1 and Standard SY5144, ensuring superior performance.C. Spiral Drill Collar With Elevator Groove And Slip GrooveNote: Featuring specially crafted elevator and slip grooves on the box thread face, these collars serve as efficient lifting subs and safety slips during trips out.The technical parameters for these grooves adhere to API SPEC7-1 guidelines. Optional hardbanding is available upon request to meet specific needs.D. Non-magnetic Drill CollarWith an as-cold-rolled finish on both ID and OD surfaces, the unique technical process enhances structure, optimizing resistance to stress, corrosion, and cracking while significantly boosting mechanical performance.High Quality API 7-1 NS-1 Non-Magnetic Drill CollarSpecifications for API 7-1 Non-Magnetic Drill Collar Slick Drill Collar OD 79.4mm to 279.4mm: Discover unparalleled precision and durability tailored to your drilling needs. ConnectionsODmmIDmmLengthmmNC23-3179.431.89150NC26-3588.938.19150NC31-41104.850.89150 or 9450NC35-47120.750.8915 or 9450NC38-50127.057.29150 or 9450NC44-60152.457.29150 or 9450NC44-60152.471.49150 or 9450NC44-62158.857.29150 or 9450NC46-62158.871.49150 or 9450NC46-65165.157.29150 or 9450NC46-65165.171.49150 or 9450NC46-67171.457.29150 or 9450NC50-67171.471.49150 or 9450NC50-70177.857.29150 or 9450NC50-70177.871.49150 or 9450NC50-72184.271.49150 or 9450NC56-77196.871.49150 or 9450NC56-80203.271.49150 or 94506 5/8REG209.671.49150 or 9450NC61-90228.671.49150 or 94507 5/8REG241.376.29150 or 9450NC70-97247.676.29150 or 9450NC70-100254.076.29150 or 94508 5/8REG279.476.29150 or 9450
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