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Niepchagnetyczne kołnierze wiertła zapewniają siłę i twardość, jednocześnie zapobiegając zakłóceniu magnetycznym, które mogą uszkodzić dokładność pomiarów magnetycznych. Jest wykonany ze specjalnych materiałów stalowych o niskiej przepuszczalności, wysokiej właściwości mechanicznej i doskonałej odporności na pękanie korozji.
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. |
Obroże wiertnicze są zintegrowanym stawem wytrzymałym, które są zbudowane z solidnego pręta AISI 4145H zmodyfikowanej stali stopowej. Nasze standardowe kołnierze wiertła są dostarczane „jako zwinięte” stan wykończenia powierzchni.? Wszystkie standardowe pręty otrzymują obróbkę cieplną, która zapewnia im niezbędne właściwości mechaniczne.
Posłuki są następnie przenoszone i dryfowane. Wszystkie nasze kołnierze wiertła są wytwarzane zgodnie z API Spec 7, Q1 i zalecaną praktyką 7G, w stosownych przypadkach. ASTM A519 Steel Rura ASTM A213
Standardowe rozmiary, otwory i połączenia
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 |
Kołnierz wiertarki i akcesoria do rur wiertniczych
Jednostki sprzedaży | : | Piece/Pieces |
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wydajność: Ten items per day
transport: Ocean
Place of Pochodzenia: Foshan City, prowincja Guangdong
Wsparcie: 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.