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 A252 Grade 3 Carbon Steel Round Pipe Spiral Welded OD 219-3620mm Wall 6-28mm for Bridge Pile StructureUS$ 0.45 - 0.55MOQ: 100 Kilograms
-
Q235 Carbon Steel Water Stop Plate Galvanized Water Barrier Steel Plate For Construction Concrete JointUS$ 10.2 - 11.6MOQ: 10 Meters
-
300 Series Stainless Steel Pipe 56 Inch Square Tube ASTM Standard Seamless 2B 200 Series Bending Welding Cutting AvailableNegotiableMOQ: 1 Ton
-
Seamless Steel Pipe API 5L X42 PSL1 8 Inch Schedule 40 for Water TransmissionNegotiableMOQ: 1 Ton
-
ASTM A53 ASME SA53 Seamless Welded Carbon Steel Pipe SCH160 Heavy Wall Thickness Structural Round Tube Black Oiled Surface Mill Test CertificateUS$ 450 - 500MOQ: 10 Tons
-
Custom Colorful Aluminum Pipe High Quality 6061 6063 7075 Series Aluminum Tube Price Anodized Aluminum Extrusion ProfilesNegotiableMOQ: 5 Tons
-
Steel Pipe & Tube & Cast Steel Pipe，HT200、HT250、ZG40Cr、ZG35SiMn、ZG42CrMo、ZG15Cr1Mo1V、ZG1Cr5Mo、ZG1Cr9MoNegotiableMOQ: 5 Metric Tons
-
Factory Thick Wall Q355B ERW Pipe 273mm OD 7.5mm Wall Fast Delivery Heavy Equipment Support BracketUS$ 500 - 850MOQ: 5 Tons
-
Advanced Food Packing Machine With Touch Screen Control for User-Friendly OperationUS$ 76.5 - 80MOQ: 10 Combos
-
Q195 Galvanized Double Corrugated Pipe for Highway and Tunnel ProjectsNegotiableMOQ: 1 Kilogram
