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    • DRILLING TOOLS
      • DRILLING MOTORS
      • STABILIZERS
      • DRILL COLLARS
      • DRILLING JARS
      • HYDRAULIC AGITATOR
      • ANTI STICK-SLIP TOOL
      • MULTIPLE ACTIVATION BYPASS VALVE
      • DRILL PIPES
      • NON-ROTATING PROTECTOR
      • X-OVER & SUBS
      • DRILL BITS
      • MICRO REAMER
    • FISHING TOOLS
      • RELEASING SPEAR
      • RELEASING AND CIRCULATING OVERSHOT
      • REVERSE CIRCULATION JUNK BASKET
      • JUNK SUB
      • FISHING MAGNET
      • SAFETY JOINT
      • TAPER TAP
      • DIE COLLAR
      • IMPRESSION BLOCK
      • DITCH MAGNET
      • MILLING SHOES
      • WASHOVER PIPE
    • IBOPs
      • KELLY VALVE
      • FLOAT VALVE
      • FULL OPENING SAFETY VALVE
      • TOP DRIVE IBOP
      • INSIDE BOP
      • DROP-IN CHECK VALVE
    • WELLBORE CLEANING TOOLS
      • CASING SCRAPER
      • NON-ROTARY CASING SCRAPER
      • CASING BRUSH
      • CUTTING BED IMPELLER
      • STRING MAGNET
      • ROTARY CASING GUIDER
      • CASING CUTTER
      • SECTION MILL
    • WELLHEAD TOOLS
      • ELEVATORS
      • ELEVATOR LINKS
      • POWER TONGS
      • MANUAL TONGS
      • SLIPS
      • SPIDERS
      • SPINNING WRENCH
      • BUSHINGS
    • DRILLING EQUIPMENTS
      • MUD PUMP
      • VALVE SEAT AND BODY
      • PISTON
      • CYLINDER LINER
      • HYDRAULIC BUCKING UNIT
      • JAR TESTER
      • FRAC PUMP VALVE RUBBER
      • FRAC PUMP VALVE BODY
      • FRAC PUMP VALVE SEAT
      • FRAC PUMP PLUNGER PACKING
  • PRESS
  • CONTACT
  • HOME
  • ABOUT
  • PRODUCTS
    • DRILLING TOOLS
      • DRILLING MOTORS
      • STABILIZERS
      • DRILL COLLARS
      • DRILLING JARS
      • HYDRAULIC AGITATOR
      • ANTI STICK-SLIP TOOL
      • MULTIPLE ACTIVATION BYPASS VALVE
      • DRILL PIPES
      • NON-ROTATING PROTECTOR
      • X-OVER & SUBS
      • DRILL BITS
      • MICRO REAMER
    • FISHING TOOLS
      • RELEASING SPEAR
      • RELEASING AND CIRCULATING OVERSHOT
      • REVERSE CIRCULATION JUNK BASKET
      • JUNK SUB
      • FISHING MAGNET
      • SAFETY JOINT
      • TAPER TAP
      • DIE COLLAR
      • IMPRESSION BLOCK
      • DITCH MAGNET
      • MILLING SHOES
      • WASHOVER PIPE
    • IBOPs
      • KELLY VALVE
      • FLOAT VALVE
      • FULL OPENING SAFETY VALVE
      • TOP DRIVE IBOP
      • INSIDE BOP
      • DROP-IN CHECK VALVE
    • WELLBORE CLEANING TOOLS
      • CASING SCRAPER
      • NON-ROTARY CASING SCRAPER
      • CASING BRUSH
      • CUTTING BED IMPELLER
      • STRING MAGNET
      • ROTARY CASING GUIDER
      • CASING CUTTER
      • SECTION MILL
    • WELLHEAD TOOLS
      • ELEVATORS
      • ELEVATOR LINKS
      • POWER TONGS
      • MANUAL TONGS
      • SLIPS
      • SPIDERS
      • SPINNING WRENCH
      • BUSHINGS
    • DRILLING EQUIPMENTS
      • MUD PUMP
      • VALVE SEAT AND BODY
      • PISTON
      • CYLINDER LINER
      • HYDRAULIC BUCKING UNIT
      • JAR TESTER
      • FRAC PUMP VALVE RUBBER
      • FRAC PUMP VALVE BODY
      • FRAC PUMP VALVE SEAT
      • FRAC PUMP PLUNGER PACKING
  • PRESS
  • CONTACT

CONVENTIONAL DRILL COLLAR

TECHNICAL SUMMARY

Drill collars are vital in oil and gas drilling. Made of strong steel, they provide weight and rigidity to the drill string, reducing bending and vibration. With threaded connections, they integrate seamlessly. Orchid Energy Ltd could supply slick/spiral drill collar and non-magnetic drill collar.
Drill collars transmit drilling energy, ensuring precise and productive drilling. Their functions include weight provision, hole stability, and torque transfer. These durable tools play a crucial role in oil and gas exploration and extraction.
 

FEATURES

1. Pressed steel thread protectors are supplied for drill collar;
2. Stress relief groove & bore back box applied if needed;
3. Hardbanding material ARNCO 100XT, ARNCO 300XT, TCS8000 applied if needed;
4. Slip and elevator recess are machined in accordance with API7-1;

SPIRAL DRILL COLLAR

STANDARD DRILL COLLAR

SPECIFICATION

Drill Collar Number

O.D.

I.D.

Length

(mm)

DF

Bevel Diameter

Ref bend Strength Ratio

(mm)

(in)

(mm)

(in)

NC23-31

79.4

3 1/8

31.8

1 1/2

9150

76.2

2.57:1

NC26-35(2 3/8IF)

88.9

3 1/2

38.1

1 1/2

9150

84.5

2.42:1

NC31-41(2 7/8IF)

104.8

4 1/8

50.8

2

9150

101.6

2.43:1

NC35-47

120.6

4 3/4

50.8

2

9150

114.7

2.58:1

NC38-50(3 1/2IF)

127.0

5

57.2

2 1/4

9150

121.0

2.38:1

NC44-60

152.4

6

57.2

2 1/4

9150&9450

144.5

2.49:1

NC44-60

152.4

6

71.4

2 13/16

9150&9450

144.5

2.84:1

NC44-62

158.8

6 1/4

57.2

2 1/4

9150&9450

149.2

2.91:1

NC46-62(4IF)

158.8

6 1/4

71.4

2 13/16

9150&9450

150.0

2.63:1

NC46-65(4IF)

165.1

6 1/2

57.2

2 1/4

9150&9450

154.8

2.76:1

NC46-65(4IF)

165.1

6 1/2

71.4

2 13/16

9150&9450

154.8

3.05:1

NC-46-47(4IF)

171.4

6 3/4

57.2

2 1/4

9150&9450

159.5

3.18:1

NC50-67(4 1/2IF)

171.4

6 3/4

71.4

2 13/16

9150&9450

159.5

2.37:1

NC50-70(4 1/2IF)

177.8

7

57.2

2 1/4

9150&9450

164.7

2.54:1

NC50-70(4 1/2IF)

177.8

7

71.4

2 13/16

9150&9450

164.7

2.73:1

NC50-72(4 1/2IF)

184.2

7 1/4

71.4

2 13/16

9150&9450

169.5

3.12:1

NC56-77

196.8

7 3/4

71.4

2 13/16

9150&9450

185.3

2.70:1

NC56-80

203.2

8

71.4

2 13/16

9150&9450

190.1

3.02:1

6 5/8 REG

209.6

8 1/4

71.4

2 13/16

9150&9450

195.7

2.93:1

NC61-90

228.6

9

71.4

2 13/16

9150&9450

212.7

3.17:1

7 5/8 REG

241.3

9 1/2

76.2

3

9150&9450

223.8

2.81:1

NC70-97

247.6

9 3/4

76.2

3

9150&9450

232.6

2.57:1

NC70-100

251

10

76.2

3

9150&9450

237.3

2.81:1

8 5/8 REG

279.4

11

76.2

3

9150&9450

266.7

2.84:1
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