Specifications
Brand Name :
TR Solids Control
Model Number :
TRDT
Certification :
API 7-1 Certificate, ISO Certificate
Place of Origin :
Xi'an China
MOQ :
1 pc
Price :
Negotiable
Payment Terms :
L/C, D/A, D/P, T/T, Western Union
Supply Ability :
100000 pcs per month
Delivery Time :
Within 8 days after deposit
Packaging Details :
Pallet or wooden case
Thread Type :
NC , REG
Processing Type :
Forging
Size :
3 1/8" -11"
Length :
9.14m
Description

AISI 4145H Sprial Drill Collar Non Magnetic Drill Collar

Product Descrption

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.

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.

Main Advantages of Application of Our Drill Collar

  1. Put pressure on the drill bit
  2. To ensure the necessary strength of compression.
  3. In the process of drilling well deflection control.
  4. To reduce the vibration of the drill bit, swing, and beating, so that the drill work smoothly.

Technical Parameters of Our Oilfield Drill Collar

Type OD(mm) ID(mm)
L(m)
±152.4mm
d

DF(mm)
±0.4

NC23-31
79.4 31.8 9.14 76.2
NC26-35 88.9 38.1 9.14 82.9
NC31-41 104.8 50.8 9.14or9.45 100.4
NC35-47 120.6 50.8 9.14or9.45 114.7
NC38-50 127 57.2 9.14or9.45 121
NC44-60 152.4 57.2 9.14or9.45 144.5
NC44-60 152.4 71.4 9.14or9.45 144.5
NC46-62 158.8 57.2 9.14or9.45 149.2
NC46-62 158.8 71.4 9.14or9.45 150
NC46-65 165.1 57.2 9.14or9.45 154.8
NC46-65 165.1 71.4 9.14or9.45 154.8
NC46-67 171.4 57.2 9.14or9.45 159.5
NC50-70 177.8 57.2 9.14or9.45 164.7
NC50-70 177.8 71.4 9.14or9.45 164.7
NC50-72 184.2 71.4 9.14or9.45 169.5
NC56-77 196.8 71.4 9.14or9.45 185.3
NC56-80 203.2 71.4 9.14or9.45 190.1
6-5/8REG 209.6 71.4 9.14or9.45 195.6
NC61-90 228.6 71.4 9.14or9.45 212.7
7-5/8REG 241.3 76.2 9.14or9.45 223.8
NC70-97 247.6 76.2 9.14or9.45 232.6
NC70-100 254 76.2 9.14or9.45 237.3
8-5/8REG 279.4 76.2 9.14or9.45 266.7
NC50-67 171.5 71.4 9.14or9.45 159.5

REG Thread AISI 4145H Non Magnetic Slick Drill Collars


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: We offer 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.

Xi'An TianRui Petroleum Machinery Equipment Company Limited with perfect attitude, product and service, is going to make further development together with customers at home and abroad.

Competitive Advantages


1. We offer high quality products at competitive price.
2. Shortest delivery time.
3. Flexible payment terms.
4. Timely after-sale service.
5. Most of our equipment can be replaceable with international brands.
6. Our products have been exported to Argentina, Egypt, US, Australia, Romania, Pakistan, Dubai, Abu Dhabi, Iran, India, Indonesia, Vietnam, Malaysia and many other countries.

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REG Thread AISI 4145H Non Magnetic Slick Drill Collars

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Brand Name :
TR Solids Control
Model Number :
TRDT
Certification :
API 7-1 Certificate, ISO Certificate
Place of Origin :
Xi'an China
MOQ :
1 pc
Price :
Negotiable
Contact Supplier
REG Thread AISI 4145H Non Magnetic Slick Drill Collars
REG Thread AISI 4145H Non Magnetic Slick Drill Collars
REG Thread AISI 4145H Non Magnetic Slick Drill Collars

Xi'an TianRui Petroleum Machinery Equipment Co., Ltd.

Verified Supplier
8 Years
Since 2010
Business Type :
Manufacturer
Total Annual :
40 Million-50 Million
Employee Number :
350~450
Certification Level :
Verified Supplier
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