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I collari non magnetici forniscono resistenza e durezza, prevenendo al contempo interferenze magnetiche che possono danneggiare l'accuratezza delle misurazioni magnetiche. È realizzato con materiali speciali in acciaio, con bassa permeabilità, elevate proprietà meccaniche e eccellente resistenza alla corrosione.
project |
Spiral or smooth |
external diameter |
identity |
Identification tool connectionl |
Diagonal diameter in |
material |
overall length |
||
exist |
exist |
connect |
foot |
||||||
1 | Drill collar | Slick or Spiral | 3.1/8 | 1.1/4 | NC26 | 2.3/8“ | 3 | 4145H | 30 or 31 |
2 | Drill collar | Slick or Spiral | 3.1/2 | 1.1/2 | NC26 | 2.3/8“ | 4145H | 30 or 31 | |
3 | Drill collar | Slick or Spiral | 4.1/8 | 2 | NC31-41 | 2.7/8“ | 3.61/64 | 4145H | 30 / 31 |
4 |
Drill collar |
Slick or Spiral | 4.3/4 | 2 | NC35-47 | 4.33/64 | 4145H | 30 /31 | |
5 | Drill collar | Slick or Spiral | 5 | 2.1/4 | NC38-50 | 3.1/2“ | 4.49/64 | 4145H | 30 or 31 |
6 | Drill collar |
Slick or Spiral |
6 | 2.1/4 | NC44-60 | 5.11/16 | 4145H | 30 or 31 | |
7 | Drill collar | Slick or Spiral | 6 | 2.13/16 | NC44-60 | 5.11/16 | 4145H | 30 or 31 | |
8 | Drill collar | Slick or Spiral | 6.1/4 | 2.1/4 | NC44-62 | 5.7/8 | 4145H | 30 or 31 | |
9 | Drill collar | Slick or Spiral | 6.1/4 | 2.13/16 | NC46-62 | 4“ | 5.29/32 |
4145H |
30 or 31 |
10 | Drill collar | Slick or Spiral | 6.1/2 | 2.1/4 | NC46-65 | 4“ | 6.3/32 | 4145H | 30 or 31 |
11 |
Drill collar |
Slick or Spiral | 6.1/2 | 2.13/16 | NC46-65 | 4“ | 6.3/32 | 4145H |
30 or 31 |
12 | Drill collar | Slick or Spiral | 6.3/4 | 2.1/4 | NC46-67 | 4“ | 6.9/32 | 4145H | 30 or 31 |
13 | Drill collar | Slick or Spiral | 7 | 2.1/4 | NC50-70 | 4.1/2“ | 6.31/64 |
4145H |
30 or 31 |
14 | Drill collar | Slick or Spiral | 7 | 2.13/16 | NC50-70 | 4.1/2“ | 6.31/64 | 4145H | 30 or 31 |
15 | Drill collar | Slick or Spiral | 7.1/4 | 2.13/16 | NC50-72 | 4.1/2“ | 6.43/64 | 4145H | 30 or 31 |
16 | Drill collar | Slick or Spiral | 7.3/4 | 2.13/16 | NC56-77 | 7.19/64 | 4145H | 30 or 31 | |
17 | Drill collar | Slick or Spiral | 8 | 2.13/16 | NC56-80 | 7.31/64 | 4145H | 30 or 31 | |
18 | Drill collar | Slick or Spiral | 8.1/4 | 2.13/16 | 6.5/8″REG | 7.45/64 | 4145H | 30 or 31 | |
19 | Drill collar | Slick or Spiral | 9 | 2.13/16 | NC61-90 | 8.3/8 | 4145H | 30 or 31 | |
20 | Drill collar | Slick or Spiral | 9.1/2 | 3 | 7.5/8″REG | 8.13/16 | 4145H | 30 or 31 | |
21 | Drill collar | Slick or Spiral | 9.3/4 | 3 | NC70-97 | 9.5/32 | 4145H | 30 or 31 | |
22 | Drill collar | Slick or Spiral | 10 | 3 | NC70-100 | 9.11/32 | 4145H | 30 or 31 | |
23 | Drill collar | Slick or Spiral | 11 | 3 | 8.5/8″REG | 10.1/2 | 4145H | 30 or 31 | |
Note: | If the cliente has any special requerimente, for example compound,cold rolling,make and break,hard banding (ARNCO 100XT ARNCO 300XT etc), internal coating (TK34 TK34PTC2000, etc),Stress- Relief Pin, Bored Back Box,Elevator Recess, slip Recess please feel free to contact us. Stainless Steel Pipe |
Non-Magetic Drill Collar | ||
Grade |
Minimum Tensile Strength |
|
psi |
Mpa |
|
1 |
90000 |
621 |
2 |
9000 |
621 |
3 |
115000 |
793 |
**Non-magetic drill collar can be customized as per customer’s design. The size please refer to the sizes of drill collar. |
Spiral Drill Collar | |||||||||
OD (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 customer’s design. |
I collari di perforazione sono un'articolazione integrale pesante che è costruita da una barra solida di acciaio in lega modificata AISI 4145H.? I nostri collari di perforazione standard sono forniti con una condizione di finitura superficiale "come arrotolata". Tutte le barre standard ricevono il trattamento termico che fornisce loro le proprietà meccaniche necessarie.
Le barre vengono quindi trepannette e alla deriva.? Tutti i nostri collari di perforazione sono fabbricati in conformità con le specifiche API 7, Q1 e la pratica consigliata 7G, a seconda dei casi. ASTM A519 Pipe di acciaio ASTM A213
Dimensioni standard, fori e connessioni
Drill Collar Conn. Size & Type |
Min. OD |
Bore | Length |
Bending Strength Ratio*** |
Drill Collar Wt. |
(in.) | (in.) | (ft.) | (lb.) | ||
NC 26 (2-3/8 IF) |
3-1/2 |
1-1/2 | 30 | 2.42:1 | 801 |
NC 31 (2-7/8 IF) | 4-1/8 | 2 | 30 | 2.43:1 | 1041 |
NC 38 (3-1/2 IF) | 4-3/4 | 2-1/4 | 31 | 1.85:1 | 1451 |
NC 38 (3-1/2 IF) | 5 | 2-1/4 | 31 | 2.38:1 | 1652 |
NC 44 | 6 | 2-1/4 | 31 | 2.49:1 | 2561 |
NC 44 | 6 | 2-13/16 | 31 | 2.84:1 | 2353 |
NC 44 | 6-1/4 | 2-1/4 | 31 | 2.91:1 | 2806 |
NC 46 (4 IF) | 6-1/4 | 2-13/16 | 31 | 2.63:1 | 2598 |
NC 46 (4 IF) | 6-1/2 | 2-1/4 | 31 | 2.76:1 | 3085 |
NC 46 (4 IF) | 6-1/2 | 2-13/16 | 31 | 3.05:1 | 2877 |
NC 46 (4 IF) | 6-3/4 | 2-1/4 | 31 | 3.18:1 | 3364 |
NC 50 (4-1/2 IF) | 7 | 2-1/4 | 31 | 2.54:1 | 3643 |
NC 50 (4-1/2 IF) | 7 | 2-13/16 | 31 | 2.73:1 | 3434 |
NC 50 (4-1/2 IF) | 7-1/4 | 2-13/16 | 31 | 3.12:1 | 3714 |
NC 56 | 8 | 2-13/16 | 31 | 3.02:1 | 4675 |
6-5/8 REG. | 8 | 2-13/16 | 31 | 2.60:1 | 4675 |
6-5/8 REG. | 8-1/4 | 2-13/16 | 31 | 2.93:1 | 5016 |
7-5/8 REG. | 9-1/2 | 3 | 31 | 2.81:1 | 6727 |
7-5/8 REG.** | 9-3/4 | 3 | 31 | 3.09:1 | 7130 |
8-5/8 REG.** | 11 | 3 | 30 | 2.78:1 | 8970 |
** Low torque face *** Ratio of box to pin section modulus – See API RP7G for details Note: Other sizes and connections are available as well as any other optional features listed |
Mechanical Property | ||||||
TTT |
Yield strength 0.2Mpa |
Tensile strength b Mpa |
Elongation 4% |
Hardness(Brinell) |
IMPACT VALUE(CHAPPY-V) |
|
mm |
in inch |
|||||
79.4-171.4 |
3 1/8-6 3/4 |
≥ 758 |
≥ 965 |
≥ 13 |
285-341 |
≥ 54 |
177.8-279.4 |
7-11 |
≥ 689 |
Accessori per tubi per trapano e trapano
Unità vendibili | : | Piece/Pieces |
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produttività: Ten items per day
Trasporti: Ocean
Luogo di origine: Foshan City, provincia del Guangdong
Supportare: ee your order quantity within 30 days
Porta: g,u,a
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.