API 7-1 P530 Non magnetic Drill collar for oil&gas downhole drilling
The Non-magnetic drill collar is made of a kind of low carbon high chrome-manganese alloy steel, material normally is P530 or P550 or higher grades, which is refined after strict chemical composition ratio and forged to achieve its mechanical properties, this kind of drill collar has superb mechanical properties of low permeability and high strength. Mainly used for down hole directional drilling.
Our Strict control of chemical composition and special forging process guarantee the excellent mechanical properties of our non magnetic drill collar.
Special Treatment on ID: Roller Burnishing. (after roller burnishing, a comprehensive layer come into being)
Advantages:
Increase the corrosion resistance properties;
Increase the surface hardness of bore up to HB400;
Increase surface finish of bore to Ra 3.2m
Test and inspection carried out on each bar during production :
Chemical Composition;
Tensile Test;
Impact Test;
Hardness Test;
Metallographic Test (Grain Size);
Corrosion Test (According to ASTM A262 Practice E);
Ultrasonic Test over the whole length of the bar (according to ASTM A388);
Relative magnetic permeability test;
Hot Spot Test;
Dimension Inspection, etc.
Drill Bits
Drill Machine
Power Screw Bits
Product Name: Drilling Machine Detailed product parameter description: Product model: ZOJET Z3050*16/1 Workbench size (mm): 500*630 Maximum drilling diameter (mm): 50 Distance from spindle centerline to column generatrix (mm): Maximum 1600 Minimum 350 Distance from spindle end to base working surface (mm): Maximum 1220 Minimum 315 Spindle travel (mm): 315 Horizontal moving distance of the spindle box (mm): 1250
Product name: Deep hole drilling and boring machine Detailed product parameter description: Product model: Texas deep hole drilling and boring machine (T2120) Main technical specifications and performance Technical specifications parameter Working scope Maximum boring diameter 200mm Drilling diameter range N40-N80mm Maximum boring depth 1000-8000mm Working support diameter range 60-300mm Spindle Spindle center height 350mm Headstock spindle bore 75 Spindle front end taper hole 85mm1:2 Spindle speed range 61-1000r/min 12 types Feed Feed speed range (stepless) 5-1000mm/min Fast moving speed of carriage 2m/min Motor Main motor power 30kW Hydraulic pump motor power 1.5kW Power of fast motor of carriage 3kW Feed motor power 4.4kW Cooling pump motor power 5.5kW4 groups other Cooling system rated pressure 2.5MPa Cooling system flow 100 200 300 400L/min Rated working pressure of hydraulic system 6.3MPa The oiler can withstand the maximum axial force 6.3KN Maximum preload force of the oiler on the workpiece 20KN Dimensions and weight length parameter 1000 2000 3000 4000 5000 6000 7000 8000
We supply slick drill collars, spiral drill collars and non-magnetic drill collars; their sizes are from 3-1/8 to 11 inches. Besides the drill collars in the table below, we can supply other drill collars at customers' request. Materials: Drill collars are manufactured from AISI 4145H modified steel, and are supplied in the "as rolled" surface finish condition. Alternative surface finishes are available. Trepanning and Heat Treatment: Drill collars are trepanned and drifted to API Spec 7-1. Full-length heat-treatment processes ensure that mechanical properties meet or exceed API Spec 7-1 requirements. A hardness range of 285-341, Brinell hardness and Charpy "V" notch minimum impact strength of 40 ft-lb at 70 F are guaranteed one inch below the surface. Traceability: Drill collar material and process traceability are maintained from receipt of the mill's certified raw material to completion of manufacturing. Serial numbers are die stamped on bar bodies. Rigid Inspection Procedures: We inspect all our drill collars to ensure compliance with API SPEC 7-1 standards. These inspections include visual dimensional checks as well as ultrasonic inspections over the entire body of the drill collar. Cold Rolling: Drill collar thread roots, as well as elevator recess upper radius, are cold-rolled. Cold rolling creates a compressive recess upper radius stress condition that increases fatigue life by minimizing crack initiation. Phosphate-coated or Copper Plating: All connections are phosphate-coated or copper plated to improve resistance to corrosion. Slip Groove, Elevator Groove and Size: Lake offers optional slip and elevator recesses to improve handling efficiency and safety. Unless otherwise specified, slip and elevator recesses are machined in compliance with API spec 7-1 guidelines. Thread Protectors: Our company offers steel, cast steel and plastic steel thread protectors for its drill stem products.
Supplier: 304 stainless steel pipes, carbon steel pipes, galvanized steel pipes, seamless pipes, stainless steel pipes, used drill bits
Buyer: Used drill bits and drill pipes, tubing, casing
A. Slick Drill Collar Note: Drill collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity. The Drill collar are manufactured strictly from API Spec7-1 and SY5411 standard. B. Spiral Drill Collar Note: Spiral drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from diffirential pressure. The drill collars are manufactired strictly according to API Spec7-1 and Standard SY5144 C. Spiral Drill Collar With Elevator Groove And Slip Groove Note: Elevator groove and slip groove made on box thread face of slick drill collar or spiral drill collar can be used as lifting sub and safety slip when trip out. The technical parameters for elevator groove and slip groove is as per API SPEC7-1. Hardbanding is optional at customersâ?? requests. D. Non-magnetic Drill Collar The as cold rooled finish on both ID and OD surface with unique technical process strengthen the structure and ensures the tools with optimal resistance to stress,corrosion,cracking and the mechanical performance is greatly enganced.
The as cold rolled finish on both ID and OD surface with unique technical process strengthen the structure and ensures the tools with optimal resistance to stress, corrosion, cracking and the mechanical performance is greatly enhanced as required
