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- info@vigorpetroleum.com
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Non-magnetic Drill Collar
● Standard: API Spec.7-1,5DP and NS-1
● Non-magnetic material equivalent to P530,P550&P650
● Non-magnetic material size from 3 1/8" up to 11"
● Non-magnetic Drill Collar, Drill pipe & HWDP
Description
China Vigor Drilling Oil Tools And Equipment Co., Ltd. is one of the most professional manufacturers and suppliers of non-magnetic drill collar in China, featured by competitive price and fast delivery. Welcome to buy high quality non-magnetic drill collar in stock here from our factory.
Vigor Non-Magnetic Drill Collars - Your Reliable manufacturer for Drilling Operations
Vigor is a leading manufacturer and supplier of high-quality non-magnetic drill collars used in oil and gas drilling operations worldwide. We will present to you the standards, material selection, and the types we can offer in the field of petroleum equipment. you can obtain drilling and casing solutions.
Our products are designed and constructed according to API Spec 7-1 and comply with relevant international standards such as 5DP and NS-1, whose body design provides thick, premium drill collar wall construction for durability and resistance to cracking or twisting. The rods feature high-strength threaded box and pin connections to reliably transmit torque and axial loads without failure.
Vigor utilizes high-strength non-magnetic alloys including P530, P550, and P650 to withstand high pressures and temperatures in harsh downhole environments.
Our non-magnetic material properties prevent interference with MWD tools for accurate wellbore positioning and surveying, and size from 3 1/8" up to 11", it is refined with strict chemical composition control, specially forged to achieve high strength mechanical properties and low magnetic permeability, excellent intergranular corrosion cracking resistance, and wear resistance.
Vigor provide multiple API 7-1 Non-Magnetic Drill Collar types including spiral, and slick collars.
Spiral collars reduce sticking tendencies in horizontal and highly deviated wells.
Slick collars allow for higher rotation speeds.
Custom options and proprietary alloys are available. Technical parameters are available.
Slick Drill Collar
|
O.D. |
I.D. |
Length mm |
Style of Connection |
Bevel Diameter mm |
Bending Strength Ratio |
||
|
mm |
In. |
mm |
In. | ||||
|
79.4 |
3-1/8 |
31.8 |
1-1/4 |
9150 |
NC23-31 |
76.2 |
2.57:1 |
|
88.9 |
3-1/2 |
38.1 |
1-1/2 |
9150 |
NC26-35(23/8IF) |
82.9 |
2.42:1 |
|
104.8 |
4-1/8 |
50.8 |
2 |
9150 |
NC31-41(27/8IF) |
100.4 |
2.43:1 |
|
120.7 |
4-3/4 |
50.8 |
2 |
9150 |
NC35-47 |
114.7 |
2.58:1 |
|
127.0 |
5 |
57.2 |
2-1/4 |
9150 |
NC3850(31/2IF) |
121.0 |
2.38:1 |
|
152.4 |
6 |
57.2 |
2-1/4 |
9150 or 9450 |
NC44-60 |
144.5 |
2.49:1 |
|
158.8 |
6-1/4 |
57.2 |
2-1/4 |
9150 or 9450 |
NC44-62 |
149.2 |
2.91:1 |
|
158.8 |
6-1/4 |
71.4 |
2-13/16 |
9150 or 9450 |
NC46-62(4IF) |
150.0 |
2.63:1 |
|
165.1 |
6-1/2 |
57.2 |
2-1/4 |
9150 or 9450 |
NC46-65(4IF) |
154.8 |
2.76:1 |
|
165.1 |
6-1/2 |
71.4 |
2-13/16 |
9150 or 9450 |
NC46-65(4IF) |
154.8 |
3.05:1 |
|
171.4 |
6-3/4 |
57.2 |
2-1/4 |
9150 or 9450 |
NC46-67(4IF) |
159.5 |
3.18:1 |
|
171.4 |
6-3/4 |
71.4 |
2-13/16 |
9150 or 9450 |
NC50-67(41/2IF) |
159.5 |
2.37:1 |
|
177.8 |
7 |
57.2 |
2-1/4 |
9150 or 9450 |
NC50-70(41/2IF) |
164.7 |
2.54:1 |
|
177.8 |
7 |
71.4 |
2-13/16 |
9150 or 9450 |
NC50-70(41/2IF) |
164.7 |
2.73:1 |
|
184.2 |
7-1/4 |
71.4 |
2-13/16 |
9150 or 9450 |
NC50-72(41/2IF) |
169.5 |
3.12:1 |
|
196.8 |
7-3/4 |
71.4 |
2-13/16 |
9150 or 9450 |
NC50-77 |
185.3 |
2.70:1 |
|
203.2 |
8 |
71.4 |
2-13/16 |
9150 or 9450 |
NC50-80 |
190.1 |
3.02:1 |
|
209.6 |
8-1/4 |
71.4 |
2-13/16 |
9150 or 9450 |
6 5/8REG |
195.7 |
2.93:1 |
|
228.6 |
9 |
71.4 |
2-13/16 |
9150 or 9450 |
NC61-90 |
212.7 |
3.17:1 |
|
241.3 |
9-1/2 |
76.2 |
3 |
9150 or 9450 |
7 5/8REG |
223.8 |
2.81:1 |
|
247.6 |
9-3/4 |
76.2 |
3 |
9150 or 9450 |
NC70-97 |
232.6 |
2.57:1 |
|
254.0 |
10 |
76.2 |
3 |
9150 or 9450 |
NC70-100 |
237.3 |
2.81:1 |
|
279.4 |
11 |
76.2 |
3 |
9150 or 9450 |
8 5/8REG |
266.7 |
2.84:1 |
※ Drill collar can be customized as per the customer's design.
Spiral Drill Collar
|
O.D. (In.) |
4-3/4 |
6-1/4 |
6-3/4 |
7-1/4 |
7-1/2 |
8 |
9-1/2 |
10 |
11 |
|
Depth of Cut (In.) |
7/32 ±1/32 |
9/32 ±1/16 |
5/16 ±1/16 |
11/32 ±1/16 |
11/32 ±1/16 |
3/8 ±1/16 |
13/32 ±3/32 |
7/16 ±3/32 |
15/32 ±3/32 |
|
Spiral Pitch (In.) |
38 ±1 |
42 ±1 |
46 ±1 |
64 ±1 |
64 ±1 |
68 ±1 |
72 ±1 |
76 ±1 |
80 ±1 |
※ Drill collar can be customized as per the customer's design.
Mechanical Properties
|
Mechanical properties |
Specification |
|
Tensile Strength, Mpa |
≥1035 |
|
Yield Strength, Mpa |
≥965 |
|
Elongation,% |
≥20 |
|
Reduction in Area,% |
≥50 |
|
Charpy Impact Work, J |
≥122 |
|
Brinell Hardness(25.4 mm),HB |
≥290 |
|
Magnetic Gradient,μT |
±0.05 |
The Function of Non-Magnetic Drill Collars
Since all magnetic measuring instruments measure the orientation of the wellbore by sensing the Earth's magnetic field at the wellbore, it is essential for these instruments to be in a non-magnetic environment. However, during the drilling process, drilling tools often possess magnetism, which generates a magnetic field, thereby affecting magnetic measuring instruments. This interference prevents the acquisition of accurate wellbore trajectory measurement data. Non-magnetic collars are employed to create a non-magnetic environment, preserving the characteristics of regular drill collars.
The operating principle of non-magnetic collar is based on the fact that the interference magnetic field lines above and below the drill collar do not impact the instrument's location. Consequently, this design establishes a non-magnetic environment for magnetic measuring instruments, ensuring that the data obtained by these instruments accurately represents the information from the Earth's magnetic field.
Non-Magnetic Drill Collar for Directional drilling
The structure of non-magnetic collars is similar to regular drill collars, with the main difference being in their chemical composition and mechanical properties. Non-magnetic products are specialized tools used in directional drilling projects.
In directional drilling, when using a magnetic inclinometer to measure the inclination and azimuth of the wellbore, it is essential to equip the drill string with a certain length of non-magnetic collars. This ensures that the compass is not affected by the magnetic field of the drill string and is positioned correctly within the non-magnetic collar for accurate inclinometer measurements.
Why choose Vigor?
(1)Quality and Reliability
Vigor maintains stringent quality control standards for all products. Our non-magnetic collars are individually inspected and tested to detect any defects and ensure full compliance with API and customer specifications prior to shipment. We provide complete material test reports and inspection records upon request.
(2)Our large stock allows quick delivery times and rapid responses to urgent project needs. All drill collars are securely packaged for transportation to prevent damage. We can arrange 3rd party inspection services and testing if required.
(3)With extensive industry experience supplying major operators and service companies worldwide, Vigor is your reliable partner for non-magnetic drill collars and all drilling equipment needs. Contact our professional team today to discuss your specific requirements.
FAQ
Q: What is the relative permeability of your Non-magnetic material?
Q: What is the role of non-magnetic collars for directional drilling, and when is it necessary to use collars?
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