Contact Platform Support
Help CenterDrill Collar API SPEC7-1/7-2
Related Products
-
API SPEC 7-1 Drill Collar With High QualityUS$ 100 - 2,000MOQ: 20 Tons -
Oil Well Drilling Equipment Drill Collar by ManufacturerUS$ 100 - 2,000MOQ: 100 Meters
-
Spial Drill Collar With High Quality and Best Price for Oil FieldUS$ 100 - 2,000MOQ: 100 Meters
-
Best Price API Spiral Drill Collar From ChinaUS$ 100 - 2,000MOQ: 20 Tons
-
Best Price API7-1 Nonmagnetic Drill Collar From ChinaUS$ 100 - 2,000MOQ: 20 Tons
Specifications
1) Certificate: API 7-1, API Q1, ISO9001
2) OD: 104.8-228.6mm
3) Length: 9150/9140
4) Material: AISI4145H mod or Non-magnetic
1) Certificate: API SPEC 7-1, API SPEC 7-2, API Q1, ISO9001
2) OD: 104.8-228.6mm
3) Length: 9150/9140
4) Material: AISI4145H mod or Non-magnetic
Usage:
It’s one of the most important elements of drill stem. It can provide drilling pressure to the bit and improve drill stem rigid.
Effectively control the trace element of the material which was selected with high quality and unique method. Adopt special intermediate frequency heat treatment method and advanced ultrasonic and magnetic particle inspection method and holding higher mechanical property. According to the shape and material dill collar was divided into three forms:
1. Type A (cylindrical): To be made of ordinary alloy steel, with circular cross section inside and outside the drill collar.
2. Type B (Spiral): To be made of ordinary alloy steel, with spiral grooves on the outer surface of drill collar.
3. Type C (Nonmagnetic): To be made of low magnetic permeability alloy steel, with circular cross section inside and outside the drill colla
Nominal size |
OD |
ID |
L
mm |
bevel diameter |
Bending strength ratio |
||
mm |
in |
mm |
in |
||||
NC23-31 |
79.4 |
3 1/8 |
31.8 |
1 1/4 |
9150 |
76.2 |
2.57:1 |
NC26-35(2 3/8 IF) |
88.9 |
3 1/2 |
38.1 |
1 1/2 |
9150 |
82.9 |
2.42:1 |
NC31-41(2 7/8 IF) |
104.8 |
4 1/8 |
50.8 |
2 |
9150 |
100.4 |
2.43:1 |
NC35-47 |
120.6 |
4 3/4 |
50.8 |
2 |
9150 |
114.7 |
2.58:1 |
NC38-50(3 1/2 IF) |
127 |
5 |
57.2 |
2 1/4 |
9150 |
121 |
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(4 IF) |
158.8 |
6 1/4 |
71.4 |
2 13/16 |
9150&9450 |
150 |
2.63:1 |
NC46-65(4 IF) |
165.1 |
6 1/2 |
57.2 |
2 1/4 |
9150&9450 |
154.8 |
2.76:1 |
NC46-65(4 IF) |
165.1 |
6 1/2 |
71.4 |
2 13/16 |
9150&9450 |
154.8 |
3.05:1 |
NC46-67(4 IF) |
171.4 |
6 3/4 |
57.2 |
2 1/4 |
9150&9450 |
159.5 |
3.18:1 |
NC50-67(4 1/2 IF) |
171.4 |
6 3/4 |
71.4 |
2 13/16 |
9150&9450 |
159.5 |
2.37:1 |
NC50-70(4 1/2 IF) |
177.8 |
7 |
57.2 |
2 1/4 |
9150&9450 |
164.7 |
2.54:1 |
NC50-70(4 1/2 IF) |
177.8 |
7 |
71.4 |
2 13/16 |
9150&9450 |
164.7 |
2.73:1 |
NC50-72(4 1/2 IF) |
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 |
212.6 |
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 |
232.8 |
2.57:1 |
NC70-100 |
254 |
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 |
Shandong Mingzhu petroleum Equipment Co.,Ltd. Is a preofessional petroleum equipment manufacture enterprise,which integrates R & D with production,sales and service. It is located in the beautiful Yellow River estuary where is called “Oil City”----Dongying,Shandong.
We set special R&D center in our company and have strong teams with dozens of senior engineer, general engineer, senior technician and many skilled workers.
Our experts focus their efforts on R&D of product performance and new material to make products be more resistant to torsion and sulfur. we are always insisting that survive by quality, develop by credibility. We have received the following certificate: API Q1, API SPEC 5DP, API SPEC 55CT, API SPEC7-1, ISO/TS 29001,ISO9001,ISO 14001,OHSAS 18001,GOST,RTN AND HSE standard certificates awarded by CNPC and Sinopec. Snandong mingzhu would work with our clients all over the world to create a better prospect of business.
Certificates
Send Inquiry to This Supplier
You May Also Like
-
ASTM A106 Grade B Seamless Carbon Steel Pipe | ASME B36.10M | High-Quality Chinese SupplierUS$ 0.45 - 0.55MOQ: 100 Kilograms
-
Cold Drawn Din1629 St52 Seamless Steel PipeUS$ 570 - 590MOQ: 10 Tons
-
Factory Price Carbon Seamless PipeUS$ 525 - 545MOQ: 10 Metric Tons
-
ISO 9001 Certified Welded Steel Pipes | ERW & LSAW Processes | Full Size Range, Exporter StockUS$ 500 - 540MOQ: 25 Tons
-
Factory Supply GI Galvanized Square Steel Tube Welded Hollow Section ASTM EN GB Standard Custom Cut To SizeNegotiableMOQ: 1 Ton
-
Steel Pipe & Tube & Cast Iron Pipe，HT150, HT200, HT250, QT400-18, QT450-10, QT500-7, QT600-3, ZG40Cr25Ni20Si2, ZG4Cr22Ni10NegotiableMOQ: 5 Metric Tons
-
Stainless Steel Pipe For Oil & Gas Industry 304L Schedule 40 SeamlessNegotiableMOQ: 1 Ton
-
DIN 17175 St35.8 Seamless Heat Resistant Steel Tube Boiler CanadaNegotiableMOQ: 1 Metric Ton
-
Q235b Mild Steel Square Hollow Section Ms Box Section ERW Technique for Structure Pipe Use-Bending Welding Services AvailableNegotiableMOQ: 1 Ton
-
Stainless Steel Cooling Coil 220V Fan Coil Unit 1.5mm Copper Tube OD 3/8 for HVAC SystemNegotiableMOQ: 1 Piece
